Accel

Accel is a venture capital firm founded in 1983 in Palo Alto, California, that backs early and growth-stage technology startups worldwide. It concentrates on software, cloud, data, mobile, digital media, and adjacent sectors, including consumer and enterprise technology, fintech, security, and healthcare. The firm supports entrepreneurs with long-term guidance and the resources needed to build world-class, category-defining companies. Accel maintains offices in Palo Alto, San Francisco, London, and Bangalore, and has backed a broad portfolio featuring notable companies such as Atlassian, Facebook, Dropbox, Slack, Spotify, and Cloudera.

Pratik Agarwal

Principal

Casey Aylward

Partner

Mahendran Balachandran

Partner

Luca Bocchio

Partner

Philippe Botteri

Partner

Past deals in Infrastructure

Lightrun

Series B in 2025
Lightrun is a company that specializes in developing an observability platform aimed at enhancing the debugging process for developers. Founded in 2019 and headquartered in Tel Aviv-Yafo, Israel, Lightrun's platform enables developers to securely and effortlessly add logs, performance metrics, and traces to both production and staging environments in real time. This capability allows research and development teams to improve productivity and gain comprehensive code-level observability. The platform can be deployed across various infrastructures, allowing developers to define data collection parameters while applications are actively running. This continuous debugging functionality helps developers address production issues without the need to stop applications, thereby streamlining the debugging process in any environment.

Nuitée

Series A in 2024
Founded in 2017, Nuitée specializes in infrastructure APIs tailored for the travel sector. Its platform facilitates hotel connectivity and distribution, enabling businesses to create booking apps, monetize audiences, and maintain brand control.

Nebius AI

Post in 2024
Nebius AI is an AI-centric public cloud platform, launched in late 2023 and specifically crafted to serve AI models from ML training to inferencing at a scale. Our mission is to enable ML practitioners to concentrate on their core job while DevOps, MLOps and infrastructure related tasks are on us. Our goal is to build an ML-specific cloud platform covering the whole ML lifecycle from A to Z: from data preparation and data labeling to ML training and inference.

Tracebit

Seed Round in 2024
Tracebit specializes in cloud-based cybersecurity, offering a threat detection platform that uses decoy systems to lure and capture cyber attackers. It aims to enhance the current security landscape by promoting the widespread use of threat deception and reducing false positives in traditional detection methods. The company's platform stands out for its simplicity and scalability, leveraging cloud technologies and modern DevOps practices for swift deployment, easy maintenance, and inherent security. It generates low-volume, high-value alerts by mimicking legitimate cloud resources, such as AWS S3 buckets and IAM roles, to provide robust network management services.

Accacia

Seed Round in 2024
Accacia is an AI-enabled platform focused on real estate decarbonization, designed to assist real estate and infrastructure owners, developers, asset managers, and operators in measuring, tracking, and managing climate risks. The platform provides real-time tracking of emissions at both the asset and portfolio levels, adhering to organizational boundaries as outlined by the GHG Protocol. By offering comprehensive tools for monitoring emissions, Accacia enables its clients to effectively address their environmental impact and implement strategies for sustainability.

Accacia

Seed Round in 2022
Accacia is an AI-enabled platform focused on real estate decarbonization, designed to assist real estate and infrastructure owners, developers, asset managers, and operators in measuring, tracking, and managing climate risks. The platform provides real-time tracking of emissions at both the asset and portfolio levels, adhering to organizational boundaries as outlined by the GHG Protocol. By offering comprehensive tools for monitoring emissions, Accacia enables its clients to effectively address their environmental impact and implement strategies for sustainability.

Lablabee

Pre Seed Round in 2022
LabLabee is a provider of on-demand learning labs for future networks. It serves telco operators, industrial companies, and large enterprises by offering a virtual hands-on training experience, enabling them to incorporate practical learning into their transformation processes while reducing costs. The company's platform provides testing and validation processes, staff training, and access to a telco cloud environment, allowing users to test various scenarios relevant to their technology stack.

Aalyria

Series A in 2022
Aalyria specializes in advanced networking technologies for seamless connectivity across diverse environments such as land, sea, air, near space, and deep space. Its mission is to deliver hyper-fast, ultra-secure communications networks.

Unit

Series C in 2022
Unit is a financial infrastructure platform that enables technology companies to integrate financial features into their products, including accounts, cards, payments, and lending. By streamlining the process of launching vertical banks, Unit manages compliance and banking relationships, allowing businesses to create unique banking experiences efficiently. This capability not only accelerates the development timeline for financial services but also enhances customer engagement and lifetime value by differentiating their offerings in a competitive market.

Komodor

Series B in 2022
Komodor is a platform that automates Kubernetes operations. It ingests daily Kubernetes events, tracks deployments, configurations, and code changes, correlating them with cluster status for clear understanding of system events.

Kevin.

Series A in 2022
Kevin is a fintech company that offers an advanced account-to-account payment infrastructure. It aims to replace traditional card transactions with direct bank account payments, improving customer experience and reducing costs for merchants.

Smallstep

Series A in 2022
Smallstep builds an identity authority and open-source toolkit for dev/sec/ops to secure connected applications across clouds, containers, serverless, and devices. Its platform provides infrastructure components and operational tools to implement zero-trust security, enabling access to financial data, code repositories, and other sensitive resources from company-managed devices and delivery pipelines, with the goal of reducing reliance on VPNs and firewalls while integrating security into software delivery.

Ascend.io

Series B in 2022
Ascend.io is a Palo Alto, California-based company that has developed an advanced platform for managing and automating big data pipelines. The platform integrates essential data engineering capabilities, including data ingestion, transformation, delivery, orchestration, and observability, allowing data teams to operate significantly faster. By employing declarative configurations and automation, Ascend.io optimizes cloud infrastructure management and streamlines the entire data lifecycle, reducing maintenance efforts. This innovative approach enables business managers to initiate projects, connect applications, and make informed decisions with ease. Recognized as a 2021 Gartner Cool Vendor, Ascend.io is supported by prominent venture capital firms and a notable group of industry advisors.

Ermetic - a Tenable company

Series B in 2021
Ermetic Ltd. is a company focused on cloud infrastructure security, offering a comprehensive platform designed to protect enterprises from access-related risks and misconfigurations. Founded in 2019 and headquartered in Tel Aviv-Yafo, Israel, Ermetic provides solutions that enhance visibility into identities, their entitlements, and data usage. The platform combines advanced analytics with detailed insights, enabling organizations to enforce least privilege access across complex cloud environments. This functionality supports the detection of identity and access-based threats, policy enforcement, anomaly detection, and compliance monitoring. Led by experienced technology entrepreneurs, Ermetic has garnered funding from notable investors, including Glilot Capital Partners and Norwest Venture Partners.

Pismo

Series B in 2021
Pismo is a technology company that delivers a comprehensive processing platform for banking, payments, and financial market infrastructure. Its cloud-based platform is designed to elevate user experiences globally by offering a variety of services such as customer relationship management, billing, network management, client acquisition, and credit analysis. Pismo's solution is characterized by its patented architecture, scalable design, and low cost of ownership, allowing enterprise, cloud computing, and service providers to effectively address their needs with enhanced features and customization options. This enables clients to optimize and expand their financial offerings efficiently and swiftly.

Blameless

Series B in 2021
Blameless, Inc. is a company that develops a comprehensive site reliability engineering (SRE) platform aimed at automating incident response for software businesses. Founded in 2017 and headquartered in San Mateo, California, Blameless provides tools for setting and monitoring service level objectives and agreements, facilitating coordinated incident response, and conducting root cause analysis. The platform enhances collaboration among engineering teams by assigning roles and checklists, and it features capabilities such as blameless postmortems and analytics dashboards. By leveraging AI-driven incident resolution and reliability insights, Blameless enables organizations to optimize their operational reliability while fostering a culture of continuous improvement and innovation.

Orum.io

Series B in 2021
Orum is a financial technology company that provides a platform designed to facilitate real-time money movement and instant payment solutions. Founded in 2019 and headquartered in New York, Orum leverages machine learning and proprietary data science to enhance financial transactions. Its flagship product, Foresight, is an automated programming interface that predicts fund availability and assesses transaction risks, allowing banks and financial institutions to move money instantaneously. By offering a single API integration, Orum enables businesses across various industries to embed its infrastructure, optimizing payment processes for speed, cost, and risk management. The company's innovative approach supports the development of new financial products while ensuring seamless transaction experiences.

Unit

Series B in 2021
Unit is a financial infrastructure platform that enables technology companies to integrate financial features into their products, including accounts, cards, payments, and lending. By streamlining the process of launching vertical banks, Unit manages compliance and banking relationships, allowing businesses to create unique banking experiences efficiently. This capability not only accelerates the development timeline for financial services but also enhances customer engagement and lifetime value by differentiating their offerings in a competitive market.

Komodor

Series A in 2021
Komodor is a platform that automates Kubernetes operations. It ingests daily Kubernetes events, tracks deployments, configurations, and code changes, correlating them with cluster status for clear understanding of system events.

Styra

Series B in 2021
Styra, Inc. is a technology company based in Redwood City, California, founded in 2015. It specializes in developing a cloud-native authorization platform that enables organizations to enforce and monitor authorization policies across their applications and infrastructure. The core offering, the Styra Declarative Authorization Service, provides context-based admission control to enhance security, streamline compliance, and minimize human errors in cloud-native environments. Styra's platform incorporates features such as policy design, validation, distribution, monitoring, and auditing, allowing users to implement authorization policy-as-code effectively. By utilizing declarative models, the platform helps prevent security drift and errors before deployment. Styra's solutions are compatible with various technologies, including microservices, containers, and multi-cloud environments, ensuring comprehensive security management for modern application development.

Mux

Series D in 2021
Mux specializes in online video infrastructure. Initially known for Mux Data, its performance analytics tool trusted by prominent companies, it later launched Mux Video, offering a simple API for video hosting, encoding, and streaming. Mux focuses on key viewer metrics like rebuffering, startup time, video quality, and errors to ensure optimal video experiences across devices.

Ermetic - a Tenable company

Series A in 2020
Ermetic Ltd. is a company focused on cloud infrastructure security, offering a comprehensive platform designed to protect enterprises from access-related risks and misconfigurations. Founded in 2019 and headquartered in Tel Aviv-Yafo, Israel, Ermetic provides solutions that enhance visibility into identities, their entitlements, and data usage. The platform combines advanced analytics with detailed insights, enabling organizations to enforce least privilege access across complex cloud environments. This functionality supports the detection of identity and access-based threats, policy enforcement, anomaly detection, and compliance monitoring. Led by experienced technology entrepreneurs, Ermetic has garnered funding from notable investors, including Glilot Capital Partners and Norwest Venture Partners.

Mux

Series C in 2020
Mux specializes in online video infrastructure. Initially known for Mux Data, its performance analytics tool trusted by prominent companies, it later launched Mux Video, offering a simple API for video hosting, encoding, and streaming. Mux focuses on key viewer metrics like rebuffering, startup time, video quality, and errors to ensure optimal video experiences across devices.

Humio

Series B in 2020
Humio Limited is a technology company that develops a live observability platform aimed at comprehensive event analysis through a time-series logging and aggregation system. Founded in 2016 and headquartered in London, England, Humio caters to a diverse range of industries, including higher education, financial services, government, healthcare, transportation, and technology. The platform is designed for unrestricted and efficient handling of massive volumes of log data, allowing users to aggregate, explore, report, and analyze information from various sources. It can be deployed on any infrastructure, both in the cloud and on-premises, and features an index-free architecture that facilitates real-time data exploration. Humio's innovative data storage and in-memory search technologies provide a cost-effective log management solution that minimizes hardware and engineering resource requirements. Additionally, the company has offices in Aarhus, Denmark; San Francisco, California; and Seattle, Washington.

ZeFi

Seed Round in 2020
ZeFi is a cloud platform enabling developers to build and deploy zero-knowledge circuits directly online. It streamlines proof generation processes, reducing weeks of infrastructure setup to just hours.

Strattic

Seed Round in 2020
Strattic Ltd. is a technology company based in Jerusalem, Israel, founded in 2016. It specializes in providing a hosted website security and optimization platform that focuses on converting CMS-based websites, particularly those built on WordPress, into static versions. This transformation enhances website performance by making them faster, more scalable, and significantly more secure, effectively reducing vulnerabilities associated with dynamic sites. Strattic's platform operates on a serverless architecture, allowing site owners to manage their WordPress content seamlessly while the dynamic aspects are isolated behind authentication measures. With a simple one-click deployment, site owners can publish their websites as static sites, which consist of HTML, CSS, and JavaScript, ensuring a secure online presence without compromising functionality or ease of use.

Strattic

Seed Round in 2019
Strattic Ltd. is a technology company based in Jerusalem, Israel, founded in 2016. It specializes in providing a hosted website security and optimization platform that focuses on converting CMS-based websites, particularly those built on WordPress, into static versions. This transformation enhances website performance by making them faster, more scalable, and significantly more secure, effectively reducing vulnerabilities associated with dynamic sites. Strattic's platform operates on a serverless architecture, allowing site owners to manage their WordPress content seamlessly while the dynamic aspects are isolated behind authentication measures. With a simple one-click deployment, site owners can publish their websites as static sites, which consist of HTML, CSS, and JavaScript, ensuring a secure online presence without compromising functionality or ease of use.

Styra

Series A in 2019
Styra, Inc. is a technology company based in Redwood City, California, founded in 2015. It specializes in developing a cloud-native authorization platform that enables organizations to enforce and monitor authorization policies across their applications and infrastructure. The core offering, the Styra Declarative Authorization Service, provides context-based admission control to enhance security, streamline compliance, and minimize human errors in cloud-native environments. Styra's platform incorporates features such as policy design, validation, distribution, monitoring, and auditing, allowing users to implement authorization policy-as-code effectively. By utilizing declarative models, the platform helps prevent security drift and errors before deployment. Styra's solutions are compatible with various technologies, including microservices, containers, and multi-cloud environments, ensuring comprehensive security management for modern application development.

Mux

Series B in 2019
Mux specializes in online video infrastructure. Initially known for Mux Data, its performance analytics tool trusted by prominent companies, it later launched Mux Video, offering a simple API for video hosting, encoding, and streaming. Mux focuses on key viewer metrics like rebuffering, startup time, video quality, and errors to ensure optimal video experiences across devices.

Trace Data

Seed Round in 2019
Trace Data, Inc., founded in 2019 and based in Oakland, California, specializes in providing comprehensive solutions for data observability and security. The company offers a platform that enables users to track the behaviors of individual dealers or groups of dealers, ensuring that data remains secure within interconnected systems. By integrating observability, privacy, and security into a unified platform, Trace Data empowers organizations to understand, monitor, and protect their data effectively. This innovative approach positions Trace Data as a key player in the evolving landscape of data management and security.

Segment

Series D in 2019
Segment.io, Inc. is a company that specializes in customer data infrastructure, enabling businesses to collect, unify, and connect their customer data across various platforms. Founded in 2011 and headquartered in San Francisco, California, Segment offers a single API that allows organizations to track customer information across multiple devices and channels. This data can be seamlessly sent to a variety of third-party tools, internal systems, or SQL databases. Additionally, Segment provides a product known as Data Lakes, which assists companies in leveraging their customer data to enhance user experiences. The company also maintains an office in Dublin, Ireland, and operates as a subsidiary of Twilio Inc. as of November 2020.

Blameless

Series A in 2019
Blameless, Inc. is a company that develops a comprehensive site reliability engineering (SRE) platform aimed at automating incident response for software businesses. Founded in 2017 and headquartered in San Mateo, California, Blameless provides tools for setting and monitoring service level objectives and agreements, facilitating coordinated incident response, and conducting root cause analysis. The platform enhances collaboration among engineering teams by assigning roles and checklists, and it features capabilities such as blameless postmortems and analytics dashboards. By leveraging AI-driven incident resolution and reliability insights, Blameless enables organizations to optimize their operational reliability while fostering a culture of continuous improvement and innovation.

Humio

Series A in 2019
Humio Limited is a technology company that develops a live observability platform aimed at comprehensive event analysis through a time-series logging and aggregation system. Founded in 2016 and headquartered in London, England, Humio caters to a diverse range of industries, including higher education, financial services, government, healthcare, transportation, and technology. The platform is designed for unrestricted and efficient handling of massive volumes of log data, allowing users to aggregate, explore, report, and analyze information from various sources. It can be deployed on any infrastructure, both in the cloud and on-premises, and features an index-free architecture that facilitates real-time data exploration. Humio's innovative data storage and in-memory search technologies provide a cost-effective log management solution that minimizes hardware and engineering resource requirements. Additionally, the company has offices in Aarhus, Denmark; San Francisco, California; and Seattle, Washington.

Blameless

Seed Round in 2018
Blameless, Inc. is a company that develops a comprehensive site reliability engineering (SRE) platform aimed at automating incident response for software businesses. Founded in 2017 and headquartered in San Mateo, California, Blameless provides tools for setting and monitoring service level objectives and agreements, facilitating coordinated incident response, and conducting root cause analysis. The platform enhances collaboration among engineering teams by assigning roles and checklists, and it features capabilities such as blameless postmortems and analytics dashboards. By leveraging AI-driven incident resolution and reliability insights, Blameless enables organizations to optimize their operational reliability while fostering a culture of continuous improvement and innovation.

Heptio

Series B in 2017
Heptio Inc. is a Seattle-based company founded in 2016 that specializes in making Kubernetes, an open-source container management software, accessible to enterprises. As a subsidiary of VMware, Heptio focuses on supporting and advancing the Kubernetes ecosystem, bridging the gap between traditional enterprise IT and cloud-native computing. The company's platform facilitates the automation of deployment, scaling, and management of containerized applications, enabling technology-driven organizations to fully leverage the capabilities of Kubernetes. By providing tools and operational models tailored for modern enterprises, Heptio aims to simplify the integration of Docker containers into production environments.

Primary Data

Series B in 2017
Primary Data, founded in 2013 and headquartered in Sandy, Utah, specializes in intelligence and automation software designed for enterprise data management. The company's flagship platform, DataSphere, integrates metadata management with machine learning to facilitate the seamless movement of data across both on-premises IT infrastructure and cloud environments. This innovative solution allows enterprises to manage vast amounts of data efficiently, making billions of files accessible to all applications simultaneously. DataSphere not only automates data migration and enhances cloud integration but also optimizes NAS performance, enabling organizations to maximize the value of their infrastructure investments. Through its advanced capabilities, Primary Data supports enterprises operating at petabyte scale, ensuring that the right data is delivered to the right location at the right time without disrupting applications.

Segment

Series C in 2017
Segment.io, Inc. is a company that specializes in customer data infrastructure, enabling businesses to collect, unify, and connect their customer data across various platforms. Founded in 2011 and headquartered in San Francisco, California, Segment offers a single API that allows organizations to track customer information across multiple devices and channels. This data can be seamlessly sent to a variety of third-party tools, internal systems, or SQL databases. Additionally, Segment provides a product known as Data Lakes, which assists companies in leveraging their customer data to enhance user experiences. The company also maintains an office in Dublin, Ireland, and operates as a subsidiary of Twilio Inc. as of November 2020.

Ascend.io

Series A in 2017
Ascend.io is a Palo Alto, California-based company that has developed an advanced platform for managing and automating big data pipelines. The platform integrates essential data engineering capabilities, including data ingestion, transformation, delivery, orchestration, and observability, allowing data teams to operate significantly faster. By employing declarative configurations and automation, Ascend.io optimizes cloud infrastructure management and streamlines the entire data lifecycle, reducing maintenance efforts. This innovative approach enables business managers to initiate projects, connect applications, and make informed decisions with ease. Recognized as a 2021 Gartner Cool Vendor, Ascend.io is supported by prominent venture capital firms and a notable group of industry advisors.

Mux

Series A in 2017
Mux specializes in online video infrastructure. Initially known for Mux Data, its performance analytics tool trusted by prominent companies, it later launched Mux Video, offering a simple API for video hosting, encoding, and streaming. Mux focuses on key viewer metrics like rebuffering, startup time, video quality, and errors to ensure optimal video experiences across devices.

Honeycomb

Seed Round in 2017
Honeycomb is a software company that specializes in full-stack observability for engineering teams, enabling them to understand, debug, and enhance their production systems. Founded in 2016 and based in San Francisco, California, Honeycomb's platform allows users to visualize and query various metrics, facilitating the identification of trends and summarizing results for deeper insights into complex systems. Its tools support fast incident response and system optimization, helping teams deliver efficient software releases. By empowering engineers to instrument and analyze system behavior, Honeycomb aims to improve the overall software engineering process, ultimately leading to greater satisfaction for both developers and end-users.

Heptio

Series A in 2016
Heptio Inc. is a Seattle-based company founded in 2016 that specializes in making Kubernetes, an open-source container management software, accessible to enterprises. As a subsidiary of VMware, Heptio focuses on supporting and advancing the Kubernetes ecosystem, bridging the gap between traditional enterprise IT and cloud-native computing. The company's platform facilitates the automation of deployment, scaling, and management of containerized applications, enabling technology-driven organizations to fully leverage the capabilities of Kubernetes. By providing tools and operational models tailored for modern enterprises, Heptio aims to simplify the integration of Docker containers into production environments.

Smallstep

Seed Round in 2016
Smallstep builds an identity authority and open-source toolkit for dev/sec/ops to secure connected applications across clouds, containers, serverless, and devices. Its platform provides infrastructure components and operational tools to implement zero-trust security, enabling access to financial data, code repositories, and other sensitive resources from company-managed devices and delivery pipelines, with the goal of reducing reliance on VPNs and firewalls while integrating security into software delivery.

Zeitview

Series A in 2016
Zeitview is an aerial data analytics company specializing in drone services for energy and infrastructure sectors. It uses AI and machine learning to analyze visual data, providing actionable insights that enhance asset performance and longevity. Zeitview serves industries such as solar, wind, property management, telecommunications, and utilities.

E8 Storage

Series B in 2016
E8 Storage is a technology company specializing in advanced flash storage solutions designed for enterprise and software-defined cloud environments. Founded in 2014 by industry veterans Zivan Ori and Alex Friedman, the company has developed the E8-D24 appliance, which integrates high-performance NVMe drives with the reliability of centralized storage and the scalability of scale-out solutions. This innovative approach enables E8 Storage to deliver ten times the performance at half the cost of traditional storage products. In addition to its hardware offerings, the company provides a storage management application that simplifies storage management while ensuring high reliability and availability. This application includes features such as real-time analytics and supports clients in managing large and complex databases, optimizing performance and total cost of ownership for SSDs. E8 Storage operates research and development from Tel Aviv, Israel, while its sales and marketing efforts are based in Santa Clara, California.

Honeycomb

Seed Round in 2016
Honeycomb is a software company that specializes in full-stack observability for engineering teams, enabling them to understand, debug, and enhance their production systems. Founded in 2016 and based in San Francisco, California, Honeycomb's platform allows users to visualize and query various metrics, facilitating the identification of trends and summarizing results for deeper insights into complex systems. Its tools support fast incident response and system optimization, helping teams deliver efficient software releases. By empowering engineers to instrument and analyze system behavior, Honeycomb aims to improve the overall software engineering process, ultimately leading to greater satisfaction for both developers and end-users.

Segment

Series B in 2015
Segment.io, Inc. is a company that specializes in customer data infrastructure, enabling businesses to collect, unify, and connect their customer data across various platforms. Founded in 2011 and headquartered in San Francisco, California, Segment offers a single API that allows organizations to track customer information across multiple devices and channels. This data can be seamlessly sent to a variety of third-party tools, internal systems, or SQL databases. Additionally, Segment provides a product known as Data Lakes, which assists companies in leveraging their customer data to enhance user experiences. The company also maintains an office in Dublin, Ireland, and operates as a subsidiary of Twilio Inc. as of November 2020.

Cohesity

Series B in 2015
Cohesity develops hyper-converged secondary storage solutions that consolidate, protect, and share non-mission-critical data assets of large organizations. Its platform, Cohesity DataPlatform, converges data protection infrastructure including backup, replication, disaster recovery, and cloud tiering. Additionally, it offers Cohesity Helios, a SaaS-based management solution for monitoring and managing secondary data and applications.

QMC Telecom International

Series B in 2015
QMC Telecom International is a telecommunications infrastructure provider that specializes in developing, owning, and managing wireless sites for carriers in Puerto Rico. Established in 2011 and headquartered in São Paulo, Brazil, with an additional office in San Juan, the company focuses on delivering comprehensive site development services tailored for telecommunications operators. QMC Telecom offers a range of services, including the leasing of towers and rooftop sites, aimed at facilitating reliable and timely installations of wireless connectivity. Through its infrastructure solutions, the company supports the growing demand for cellular telecommunication services in the region.

SimpliVity

Series D in 2015
SimpliVity Corporation is a provider of hyperconverged infrastructure solutions designed to enhance the deployment of resources and workloads in data centers. The company offers several products, including OmniCube, a 2U rack-mounted system that integrates server, storage, and networking services, thereby improving the management, protection, and performance of virtualized workloads. Additionally, its OmniCube Hyperconverged Infrastructure platform addresses data efficiency and global management needs in virtualized and cloud environments. SimpliVity's solutions also include OmniView, a web-based support dashboard featuring predictive analytics, and OmniStack Hyperconverged Infrastructure, which integrates with Cisco UCS to consolidate multiple core data center functions. The company's technology is utilized across various sectors, including energy, education, financial services, government, and telecommunications. Founded in 2008 and headquartered in Westborough, Massachusetts, SimpliVity has support centers in Cork, Ireland, and Raleigh, North Carolina. As of February 2017, it operates as a subsidiary of Hewlett Packard Enterprise Company.

Altiscale

Series B in 2014
Altiscale, Inc. is a cloud service provider specializing in Apache Hadoop operations. Founded in 2012 and based in Palo Alto, California, the company offers a purpose-built platform that enables organizations to efficiently manage and execute complex Hadoop projects. Altiscale enhances its services by monitoring infrastructure and job performance, ensuring high reliability and scalability for its clients. With a team experienced in Apache Hadoop since its early development at Yahoo and the management of over 40,000 Hadoop nodes, Altiscale is well-equipped to address both the potential and challenges of big data technology. In 2016, the company became a subsidiary of SAP SE, further solidifying its position in the industry.

Segment

Series A in 2014
Segment.io, Inc. is a company that specializes in customer data infrastructure, enabling businesses to collect, unify, and connect their customer data across various platforms. Founded in 2011 and headquartered in San Francisco, California, Segment offers a single API that allows organizations to track customer information across multiple devices and channels. This data can be seamlessly sent to a variety of third-party tools, internal systems, or SQL databases. Additionally, Segment provides a product known as Data Lakes, which assists companies in leveraging their customer data to enhance user experiences. The company also maintains an office in Dublin, Ireland, and operates as a subsidiary of Twilio Inc. as of November 2020.

Primary Data

Series B in 2014
Primary Data, founded in 2013 and headquartered in Sandy, Utah, specializes in intelligence and automation software designed for enterprise data management. The company's flagship platform, DataSphere, integrates metadata management with machine learning to facilitate the seamless movement of data across both on-premises IT infrastructure and cloud environments. This innovative solution allows enterprises to manage vast amounts of data efficiently, making billions of files accessible to all applications simultaneously. DataSphere not only automates data migration and enhances cloud integration but also optimizes NAS performance, enabling organizations to maximize the value of their infrastructure investments. Through its advanced capabilities, Primary Data supports enterprises operating at petabyte scale, ensuring that the right data is delivered to the right location at the right time without disrupting applications.

SimpliVity

Series C in 2013
SimpliVity Corporation is a provider of hyperconverged infrastructure solutions designed to enhance the deployment of resources and workloads in data centers. The company offers several products, including OmniCube, a 2U rack-mounted system that integrates server, storage, and networking services, thereby improving the management, protection, and performance of virtualized workloads. Additionally, its OmniCube Hyperconverged Infrastructure platform addresses data efficiency and global management needs in virtualized and cloud environments. SimpliVity's solutions also include OmniView, a web-based support dashboard featuring predictive analytics, and OmniStack Hyperconverged Infrastructure, which integrates with Cisco UCS to consolidate multiple core data center functions. The company's technology is utilized across various sectors, including energy, education, financial services, government, and telecommunications. Founded in 2008 and headquartered in Westborough, Massachusetts, SimpliVity has support centers in Cork, Ireland, and Raleigh, North Carolina. As of February 2017, it operates as a subsidiary of Hewlett Packard Enterprise Company.

Primary Data

Series B in 2013
Primary Data, founded in 2013 and headquartered in Sandy, Utah, specializes in intelligence and automation software designed for enterprise data management. The company's flagship platform, DataSphere, integrates metadata management with machine learning to facilitate the seamless movement of data across both on-premises IT infrastructure and cloud environments. This innovative solution allows enterprises to manage vast amounts of data efficiently, making billions of files accessible to all applications simultaneously. DataSphere not only automates data migration and enhances cloud integration but also optimizes NAS performance, enabling organizations to maximize the value of their infrastructure investments. Through its advanced capabilities, Primary Data supports enterprises operating at petabyte scale, ensuring that the right data is delivered to the right location at the right time without disrupting applications.

Altiscale

Series A in 2013
Altiscale, Inc. is a cloud service provider specializing in Apache Hadoop operations. Founded in 2012 and based in Palo Alto, California, the company offers a purpose-built platform that enables organizations to efficiently manage and execute complex Hadoop projects. Altiscale enhances its services by monitoring infrastructure and job performance, ensuring high reliability and scalability for its clients. With a team experienced in Apache Hadoop since its early development at Yahoo and the management of over 40,000 Hadoop nodes, Altiscale is well-equipped to address both the potential and challenges of big data technology. In 2016, the company became a subsidiary of SAP SE, further solidifying its position in the industry.

Parastructure

Seed Round in 2013
Parastructure is a data analysis software development company based in San Francisco, California. Founded in 2012 by a team of computer scientists from Stanford University, it specializes in creating sophisticated tools for data interpretation and visualization. The firm utilizes advanced open source infrastructure to enhance its software offerings, aiming to provide users with effective means to analyze complex data sets. With support from leading venture capital firms and notable angel investors, Parastructure is positioned to deliver innovative solutions in the field of data analytics.

SimpliVity

Series B in 2012
SimpliVity Corporation is a provider of hyperconverged infrastructure solutions designed to enhance the deployment of resources and workloads in data centers. The company offers several products, including OmniCube, a 2U rack-mounted system that integrates server, storage, and networking services, thereby improving the management, protection, and performance of virtualized workloads. Additionally, its OmniCube Hyperconverged Infrastructure platform addresses data efficiency and global management needs in virtualized and cloud environments. SimpliVity's solutions also include OmniView, a web-based support dashboard featuring predictive analytics, and OmniStack Hyperconverged Infrastructure, which integrates with Cisco UCS to consolidate multiple core data center functions. The company's technology is utilized across various sectors, including energy, education, financial services, government, and telecommunications. Founded in 2008 and headquartered in Westborough, Massachusetts, SimpliVity has support centers in Cork, Ireland, and Raleigh, North Carolina. As of February 2017, it operates as a subsidiary of Hewlett Packard Enterprise Company.

Nimble Storage

Series E in 2012
Nimble Storage, Inc. specializes in providing flash storage platforms designed to enhance the performance of various business applications. The company's offerings include InfoSight, a predictive cloud platform that integrates predictive analytics with flash storage and multicloud infrastructure, streamlining operations in both on-premises data centers and cloud environments. Nimble Storage's product line features AF-Series All Flash arrays and CS-Series Adaptive Flash arrays, which are optimized for high-I/O applications such as Oracle and SQL Server. Additionally, Nimble Cloud Volumes deliver an enterprise-grade multi-cloud storage solution that supports applications in major cloud environments like Amazon Web Services and Microsoft Azure. The company markets its products through a network of value-added resellers, system integrators, and distributors across diverse sectors, including healthcare, education, financial services, and technology. Founded in 2007 and headquartered in San Jose, California, Nimble Storage operates as a subsidiary of Hewlett Packard Enterprise Company.

Vigilent

Venture Round in 2012
Founded in 2004, Vigilent specializes in dynamic cooling management solutions for mission-critical facilities worldwide. Its products include real-time thermal management systems, prescriptive analytics, performance reports, and monitoring systems, serving data center operators, energy executives, and other stakeholders. Headquartered in Oakland, California, with a subsidiary in the UK, Vigilent aims to increase reliability, unlock stranded capacity, reduce operating costs, and promote sustainable practices through AI-powered applications.

SimpliVity

Series A in 2012
SimpliVity Corporation is a provider of hyperconverged infrastructure solutions designed to enhance the deployment of resources and workloads in data centers. The company offers several products, including OmniCube, a 2U rack-mounted system that integrates server, storage, and networking services, thereby improving the management, protection, and performance of virtualized workloads. Additionally, its OmniCube Hyperconverged Infrastructure platform addresses data efficiency and global management needs in virtualized and cloud environments. SimpliVity's solutions also include OmniView, a web-based support dashboard featuring predictive analytics, and OmniStack Hyperconverged Infrastructure, which integrates with Cisco UCS to consolidate multiple core data center functions. The company's technology is utilized across various sectors, including energy, education, financial services, government, and telecommunications. Founded in 2008 and headquartered in Westborough, Massachusetts, SimpliVity has support centers in Cork, Ireland, and Raleigh, North Carolina. As of February 2017, it operates as a subsidiary of Hewlett Packard Enterprise Company.

Nimble Storage

Series D in 2011
Nimble Storage, Inc. specializes in providing flash storage platforms designed to enhance the performance of various business applications. The company's offerings include InfoSight, a predictive cloud platform that integrates predictive analytics with flash storage and multicloud infrastructure, streamlining operations in both on-premises data centers and cloud environments. Nimble Storage's product line features AF-Series All Flash arrays and CS-Series Adaptive Flash arrays, which are optimized for high-I/O applications such as Oracle and SQL Server. Additionally, Nimble Cloud Volumes deliver an enterprise-grade multi-cloud storage solution that supports applications in major cloud environments like Amazon Web Services and Microsoft Azure. The company markets its products through a network of value-added resellers, system integrators, and distributors across diverse sectors, including healthcare, education, financial services, and technology. Founded in 2007 and headquartered in San Jose, California, Nimble Storage operates as a subsidiary of Hewlett Packard Enterprise Company.

ScaleXtreme

Series B in 2011
ScaleXtreme is a provider of cloud-based server automation products designed for modern distributed datacenters. The company focuses on simplifying and scaling server management across various environments, including physical servers, virtual machines, and public cloud infrastructures. Its unified automation platform enables customers to efficiently manage and control their server deployments, transforming the management processes for technologies such as Amazon EC2 and VMware. Through its innovative solutions, ScaleXtreme aims to enhance operational efficiency and streamline systems management for organizations.

Nimble Storage

Series C in 2010
Nimble Storage, Inc. specializes in providing flash storage platforms designed to enhance the performance of various business applications. The company's offerings include InfoSight, a predictive cloud platform that integrates predictive analytics with flash storage and multicloud infrastructure, streamlining operations in both on-premises data centers and cloud environments. Nimble Storage's product line features AF-Series All Flash arrays and CS-Series Adaptive Flash arrays, which are optimized for high-I/O applications such as Oracle and SQL Server. Additionally, Nimble Cloud Volumes deliver an enterprise-grade multi-cloud storage solution that supports applications in major cloud environments like Amazon Web Services and Microsoft Azure. The company markets its products through a network of value-added resellers, system integrators, and distributors across diverse sectors, including healthcare, education, financial services, and technology. Founded in 2007 and headquartered in San Jose, California, Nimble Storage operates as a subsidiary of Hewlett Packard Enterprise Company.

Cambridge Broadband Networks

Venture Round in 2010
Cambridge Broadband Networks develops and deploys microwave access and wireless backhaul solutions for telecommunication network providers globally. It offers the VectaStar platform, providing mobile backhaul, enterprise access, and small cell network solutions, along with a network management system and configuration application. The company also delivers consultancy services for network design and deployment.

ScaleXtreme

Series A in 2010
ScaleXtreme is a provider of cloud-based server automation products designed for modern distributed datacenters. The company focuses on simplifying and scaling server management across various environments, including physical servers, virtual machines, and public cloud infrastructures. Its unified automation platform enables customers to efficiently manage and control their server deployments, transforming the management processes for technologies such as Amazon EC2 and VMware. Through its innovative solutions, ScaleXtreme aims to enhance operational efficiency and streamline systems management for organizations.

Nimbula

Series B in 2010
Nimbula is a cloud infrastructure software company that enables enterprises and service providers to construct private, public, or hybrid clouds. Founded by industry veterans Chris Pinkham and Willem van Biljon, who previously developed Amazon EC2, Nimbula offers its flagship product, Nimbula Director, which is designed to be scalable, highly automated, and user-friendly while providing complete control over cloud environments. The company’s solutions combine the flexibility and operational efficiencies typically associated with public clouds with the control and security of traditional data centers. Nimbula is headquartered in Mountain View, California, with a development team located in South Africa. It has participated in the OpenStack Foundation to further advance cloud software technologies. Nimbula was acquired by Oracle Corporation, reflecting its impactful role in the cloud software market.

Fusion-io

Series C in 2010
Fusion-io specializes in enterprise storage architecture and I/O solutions that enhance data processing speeds. The company's core offerings include the ioDrive, a non-volatile solid-state storage device utilizing NAND technology, and the ioMemory virtual storage layer, which serves as a flash-optimized operating system subsystem for the enterprise flash sector. Additionally, Fusion-io provides the ioSphere platform, a software management solution designed for server-attached storage-class memory. Their technology is employed by a diverse range of clients, including e-commerce companies, social media firms, and Fortune Global 500 enterprises, all of which leverage Fusion-io's solutions to improve the performance and efficiency of their data centers, thereby accelerating critical applications essential to the information economy.

Altor Networks

Series B in 2010
Altor Networks specializes in providing virtualization security solutions that enhance the security of virtualized environments, particularly in data centers and internal clouds. The company's flagship product, the Altor VF virtual firewall, delivers granular control and visibility over virtual network traffic, significantly improving the security posture of virtual servers while minimizing administrative burdens. This technology is designed to support multiple virtualization platforms, allowing enterprises to maintain flexibility in their technology choices. Key features of Altor's solutions include the enforcement of rule-based security policies on individual or groups of virtual machines, protection of virtual machines during migration events without disrupting connections, and the ability to monitor traffic for intrusion detection purposes. By automatically applying default security policies to new or rogue virtual machines, Altor Networks empowers organizations to safeguard their virtualized networks effectively against potential threats.

XConnect Global Networks

Series B in 2009
XConnect Global Networks is a leading provider of next-generation interconnection services that facilitate the adoption of IP-based multimedia communications. The company leverages its advanced ENUM registry and IPX hub technology to help customers optimize their network and technology investments, enabling the delivery of IP voice, video, and unified communications across various networks and platforms. Headquartered in London, with additional offices in the USA, EMEA, and Asia, XConnect serves a diverse customer base that includes major carriers, service providers, and video conferencing providers across more than 70 countries. Their federation-based peering services offer real-time access to comprehensive and secure phone number data, empowering mobile communications and ensuring efficient connectivity for IP-enabled carriers and service providers.

Ubidyne

Series B in 2009
Ubidyne is a technology company founded in 2005, specializing in digital active antenna technology. The company’s innovative Antenna Embedded Radio technology integrates micro-radio systems within wireless antennas, revolutionizing mobile communications by eliminating the need for coaxial feeder cables, remote electrical tilt, and additional amplifiers. Ubidyne's products are designed to support a wide range of mobile communication standards, including GSM, UMTS, HSPA+, and LTE, and are compatible with both CPRI and OBSAI optical interfaces. This advanced technology enables efficient deployment of multi-standard wireless services, enhancing coverage, capacity, and energy efficiency of mobile networks globally. Ubidyne's solutions cater to various applications, from pico cells to smart macro cells and distributed in-building systems.

Cambridge Broadband Networks

Venture Round in 2009
Cambridge Broadband Networks develops and deploys microwave access and wireless backhaul solutions for telecommunication network providers globally. It offers the VectaStar platform, providing mobile backhaul, enterprise access, and small cell network solutions, along with a network management system and configuration application. The company also delivers consultancy services for network design and deployment.

WiChorus

Series C in 2008
WiChorus is a company that specializes in software solutions for network management within the telecommunications sector. It develops innovative products for both mobile and fixed networks, aiming to enhance operational efficiency for service providers. Notably, WiChorus offers a smartcore platform that supports the deployment of 4G packet core infrastructure, including WiMAX and LTE networks. This platform includes capabilities for service and subscriber management, content management, and network optimization, allowing operators to enhance performance while effectively monetizing their internet services. Through its advanced technology, WiChorus enables telecommunications operators to achieve superior network intelligence and performance.

Mu Dynamics

Series C in 2008
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Altor Networks

Series A in 2008
Altor Networks specializes in providing virtualization security solutions that enhance the security of virtualized environments, particularly in data centers and internal clouds. The company's flagship product, the Altor VF virtual firewall, delivers granular control and visibility over virtual network traffic, significantly improving the security posture of virtual servers while minimizing administrative burdens. This technology is designed to support multiple virtualization platforms, allowing enterprises to maintain flexibility in their technology choices. Key features of Altor's solutions include the enforcement of rule-based security policies on individual or groups of virtual machines, protection of virtual machines during migration events without disrupting connections, and the ability to monitor traffic for intrusion detection purposes. By automatically applying default security policies to new or rogue virtual machines, Altor Networks empowers organizations to safeguard their virtualized networks effectively against potential threats.

WiChorus

Series B in 2007
WiChorus is a company that specializes in software solutions for network management within the telecommunications sector. It develops innovative products for both mobile and fixed networks, aiming to enhance operational efficiency for service providers. Notably, WiChorus offers a smartcore platform that supports the deployment of 4G packet core infrastructure, including WiMAX and LTE networks. This platform includes capabilities for service and subscriber management, content management, and network optimization, allowing operators to enhance performance while effectively monetizing their internet services. Through its advanced technology, WiChorus enables telecommunications operators to achieve superior network intelligence and performance.

Azul Systems

Series F in 2007
Azul Systems, Inc., established in 2002 and headquartered in Sunnyvale, California, specializes in designing and developing Java runtime solutions. The company offers two primary products: Zing, a Java Virtual Machine (JVM) optimized for enterprise applications requiring low latency, high transaction rates, and consistent response times; and Zulu, a family of certified, open-source builds of OpenJDK with flexible commercial support options, catering to various enterprise, cloud, and embedded/IoT deployments. Azul serves Fortune 500 and Global 1000 enterprises across industries such as capital markets, digital advertising, and telecom, selling its products in the United States and EMEA countries. Additionally, Azul provides open-source tools for latency reporting, application profiling, and Java environment analysis.

Hyperic

Series B in 2007
Hyperic is a company that specializes in monitoring and management software tailored for web applications. Its solutions are designed to support various deployment environments, including both cloud-based and on-premise infrastructures. By focusing on the performance and reliability of web applications, Hyperic enables organizations to optimize their operational efficiency and enhance user experience. The company's software tools are essential for businesses seeking to maintain robust application performance in an increasingly digital landscape.

XConnect Global Networks

Series A in 2007
XConnect Global Networks is a leading provider of next-generation interconnection services that facilitate the adoption of IP-based multimedia communications. The company leverages its advanced ENUM registry and IPX hub technology to help customers optimize their network and technology investments, enabling the delivery of IP voice, video, and unified communications across various networks and platforms. Headquartered in London, with additional offices in the USA, EMEA, and Asia, XConnect serves a diverse customer base that includes major carriers, service providers, and video conferencing providers across more than 70 countries. Their federation-based peering services offer real-time access to comprehensive and secure phone number data, empowering mobile communications and ensuring efficient connectivity for IP-enabled carriers and service providers.

Azea Networks

Series D in 2007
Azea Networks Limited, provides world-class submarine optical networking solutions Azea Networks provides world-class submarine optical networking solutions that allow operators to exploit the full potential of their existing cable assets. Azea is uniquely focused on delivering substantial, and cost effective, capacity gains over existing undersea systems. The Azea team combines extensive optical engineering experience in characterisation, system design, modelling and product implementation to provide technologies and services that are a compelling alternative to the cost and risk of deploying new submarine cable systems. Azea’s head office is in London, with manufacturing in Scotland and a number of regional support offices.

Cambridge Broadband Networks

Series E in 2007
Cambridge Broadband Networks develops and deploys microwave access and wireless backhaul solutions for telecommunication network providers globally. It offers the VectaStar platform, providing mobile backhaul, enterprise access, and small cell network solutions, along with a network management system and configuration application. The company also delivers consultancy services for network design and deployment.

Sansa Security

Series C in 2007
Sansa Security is a provider of comprehensive embedded security solutions tailored for the Internet of Things (IoT) and mobile devices. The company delivers unified and scalable security features that extend from silicon chipsets to cloud-based secret provisioning. Sansa Security's products encompass both hardware and software technologies, including security co-processors, subsystems, modules, and cryptographic accelerators, ensuring robust protection against threats such as malware, fraud, and data theft. By enabling secure interactions through a configurable trust model, Sansa facilitates new business models among customers, suppliers, and technology partners. The company serves leading semiconductor and device manufacturers, consistently ranking among the foremost entities in the embedded security market. Its solutions cater to various sectors, including automotive, networking, and industrial applications, while maintaining transparency for end-users.

Mendocino Software

Venture Round in 2007
Mendocino Software, Inc. went out of business. Mendocino Software, Inc. develops and markets enterprise-class application data availability and access solutions. Its products include InfiniView, which offers data capture and view presentation for use with various application environments, including Oracle, Sybase, DB2 UDB, SQL Server, messaging, and other databases and enterprise file systems on supported operating system platforms. The company’s products help in data protection and recovery, as well as in the administration and maintenance of enterprise applications. The company was founded in 2003 and is based in Fremont, California.

XenSource

Series C in 2006
XenSource, Inc. is a developer of enterprise-grade virtualization solutions, founded in 2004 and headquartered in Palo Alto, California. The company specializes in open-source hypervisor technology, notably its flagship product, Xen 3.0, which offers essential features for servers in enterprise environments. Additionally, XenSource provides the Xen Optimiser, a software management solution for multi-server virtualization infrastructure, and a subscription-based support service for its products. These offerings are designed to help organizations enhance server utilization, consolidate resources, and improve data center efficiency, ultimately aiming to reduce server infrastructure complexity and total cost of ownership. In 2007, XenSource was acquired by Citrix Systems, Inc.

WiChorus

Series B in 2006
WiChorus is a company that specializes in software solutions for network management within the telecommunications sector. It develops innovative products for both mobile and fixed networks, aiming to enhance operational efficiency for service providers. Notably, WiChorus offers a smartcore platform that supports the deployment of 4G packet core infrastructure, including WiMAX and LTE networks. This platform includes capabilities for service and subscriber management, content management, and network optimization, allowing operators to enhance performance while effectively monetizing their internet services. Through its advanced technology, WiChorus enables telecommunications operators to achieve superior network intelligence and performance.

Mu Dynamics

Series B in 2006
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Acopia Networks

Series D in 2006
Acopia Networks specializes in intelligent file virtualization solutions designed to enhance data management for enterprises. The company offers the Acopia ARX series of intelligent file virtualization devices, which automate essential data management tasks and mitigate disruptions related to storage management operations. Additionally, Acopia Networks provides the FreedomFabric network operating system software, enabling organizations to manage unstructured file data more efficiently by automating various storage management functions. The company's services also include data migration, storage tiering, data replication, and load balancing, allowing customers to implement an adaptive infrastructure that integrates applications, servers, and storage across their global operations.

Hyperic

Series A in 2006
Hyperic is a company that specializes in monitoring and management software tailored for web applications. Its solutions are designed to support various deployment environments, including both cloud-based and on-premise infrastructures. By focusing on the performance and reliability of web applications, Hyperic enables organizations to optimize their operational efficiency and enhance user experience. The company's software tools are essential for businesses seeking to maintain robust application performance in an increasingly digital landscape.

Reactivity

Venture Round in 2006
Reactivity was a technology company that specialized in securing, accelerating, and managing XML and Web service environments for enterprises. Founded in 1998 and based in Belmont, California, the company developed various products, including XML Infrastructure appliances that integrated hardware with an XML operating system. Its offerings included a Manager tool that allowed professionals to define policies and monitor compliance, Gateway-D, a desktop solution for developers and testers, and Gatekeeper, which provided security for XML Web services. Reactivity's innovative solutions aimed to enhance the reliability and performance of XML-based applications. In 2007, the company was acquired by Cisco.

Azul Systems

Series E in 2006
Azul Systems, Inc., established in 2002 and headquartered in Sunnyvale, California, specializes in designing and developing Java runtime solutions. The company offers two primary products: Zing, a Java Virtual Machine (JVM) optimized for enterprise applications requiring low latency, high transaction rates, and consistent response times; and Zulu, a family of certified, open-source builds of OpenJDK with flexible commercial support options, catering to various enterprise, cloud, and embedded/IoT deployments. Azul serves Fortune 500 and Global 1000 enterprises across industries such as capital markets, digital advertising, and telecom, selling its products in the United States and EMEA countries. Additionally, Azul provides open-source tools for latency reporting, application profiling, and Java environment analysis.

Cambridge Broadband Networks

Series D in 2006
Cambridge Broadband Networks develops and deploys microwave access and wireless backhaul solutions for telecommunication network providers globally. It offers the VectaStar platform, providing mobile backhaul, enterprise access, and small cell network solutions, along with a network management system and configuration application. The company also delivers consultancy services for network design and deployment.

Mendocino Software

Series B in 2005
Mendocino Software, Inc. went out of business. Mendocino Software, Inc. develops and markets enterprise-class application data availability and access solutions. Its products include InfiniView, which offers data capture and view presentation for use with various application environments, including Oracle, Sybase, DB2 UDB, SQL Server, messaging, and other databases and enterprise file systems on supported operating system platforms. The company’s products help in data protection and recovery, as well as in the administration and maintenance of enterprise applications. The company was founded in 2003 and is based in Fremont, California.

Ubidyne

Series A in 2005
Ubidyne is a technology company founded in 2005, specializing in digital active antenna technology. The company’s innovative Antenna Embedded Radio technology integrates micro-radio systems within wireless antennas, revolutionizing mobile communications by eliminating the need for coaxial feeder cables, remote electrical tilt, and additional amplifiers. Ubidyne's products are designed to support a wide range of mobile communication standards, including GSM, UMTS, HSPA+, and LTE, and are compatible with both CPRI and OBSAI optical interfaces. This advanced technology enables efficient deployment of multi-standard wireless services, enhancing coverage, capacity, and energy efficiency of mobile networks globally. Ubidyne's solutions cater to various applications, from pico cells to smart macro cells and distributed in-building systems.

XenSource

Series B in 2005
XenSource, Inc. is a developer of enterprise-grade virtualization solutions, founded in 2004 and headquartered in Palo Alto, California. The company specializes in open-source hypervisor technology, notably its flagship product, Xen 3.0, which offers essential features for servers in enterprise environments. Additionally, XenSource provides the Xen Optimiser, a software management solution for multi-server virtualization infrastructure, and a subscription-based support service for its products. These offerings are designed to help organizations enhance server utilization, consolidate resources, and improve data center efficiency, ultimately aiming to reduce server infrastructure complexity and total cost of ownership. In 2007, XenSource was acquired by Citrix Systems, Inc.

Level 5 Networks

Series B in 2005
Level 5 Networks, Inc., founded in 2002 and headquartered in Sunnyvale, California, with an additional office in Cambridge, the United Kingdom, is a fabless semiconductor and software company specializing in ethernet network interface cards. The company's primary product, EtherFabric, combines specialized silicon, high-performance hardware, and software to enable Ethernet networks to function as high-performance server interconnects. This technology accelerates application performance and optimizes existing IT infrastructure by liberating server compute power. Level 5 Networks was formerly known as Cambridge Internetworking Limited and was acquired by Solarflare Communications in April 2006.

Azul Systems

Series D in 2005
Azul Systems, Inc., established in 2002 and headquartered in Sunnyvale, California, specializes in designing and developing Java runtime solutions. The company offers two primary products: Zing, a Java Virtual Machine (JVM) optimized for enterprise applications requiring low latency, high transaction rates, and consistent response times; and Zulu, a family of certified, open-source builds of OpenJDK with flexible commercial support options, catering to various enterprise, cloud, and embedded/IoT deployments. Azul serves Fortune 500 and Global 1000 enterprises across industries such as capital markets, digital advertising, and telecom, selling its products in the United States and EMEA countries. Additionally, Azul provides open-source tools for latency reporting, application profiling, and Java environment analysis.

Entrisphere

Series C in 2005
Entrisphere, Inc. is a provider of access network equipment designed for broadband service providers. Founded in 2000 and based in Santa Clara, California, the company develops products like the BLM 1500, a multi-service access platform that supports various communication interfaces such as voice over packet, IPTV, DSL, and both B-PON and GPON technologies. Entrisphere also offers a range of optical network terminals (ONTs) and optical network units (ONUs) suitable for different deployment scenarios, including single-family homes and multi-tenant buildings, along with OSP cabinets that facilitate voice, data, and video services over both copper and fiber connections. In addition to hardware solutions, Entrisphere provides essential support services such as network planning, installation, and maintenance, ensuring efficient operation for telecommunications carriers. As of February 2007, Entrisphere, Inc. operates as a subsidiary of LM Ericsson Telephone Co.

Azea Networks

Series C in 2005
Azea Networks Limited, provides world-class submarine optical networking solutions Azea Networks provides world-class submarine optical networking solutions that allow operators to exploit the full potential of their existing cable assets. Azea is uniquely focused on delivering substantial, and cost effective, capacity gains over existing undersea systems. The Azea team combines extensive optical engineering experience in characterisation, system design, modelling and product implementation to provide technologies and services that are a compelling alternative to the cost and risk of deploying new submarine cable systems. Azea’s head office is in London, with manufacturing in Scotland and a number of regional support offices.

Mu Dynamics

Series A in 2005
Mu Dynamics is a provider of proactive service assurance solutions aimed at network operators, product suppliers, government agencies, and network vendors. The company focuses on enhancing the quality, reliability, and robustness of networks, enabling operators to minimize downtime and maintain revenue-critical next-generation IP services. Its flagship offering, the Service Analyzer, serves as a comprehensive platform that identifies vulnerabilities within IP-based applications and networks. This tool generates actionable remediation information to address identified weaknesses and verifies the effectiveness of implemented fixes through an integrated regression database. By addressing issues proactively, Mu Dynamics helps clients reduce customer churn and avoid the costs associated with service interruptions.

Acopia Networks

Series C in 2004
Acopia Networks specializes in intelligent file virtualization solutions designed to enhance data management for enterprises. The company offers the Acopia ARX series of intelligent file virtualization devices, which automate essential data management tasks and mitigate disruptions related to storage management operations. Additionally, Acopia Networks provides the FreedomFabric network operating system software, enabling organizations to manage unstructured file data more efficiently by automating various storage management functions. The company's services also include data migration, storage tiering, data replication, and load balancing, allowing customers to implement an adaptive infrastructure that integrates applications, servers, and storage across their global operations.

Transitive

Series C in 2004
Transitive is a technology company specializing in cross-platform virtualization, enabling the seamless execution of software applications across different hardware and operating systems. The company has developed pioneering solutions that allow applications compiled for one CPU architecture to operate on platforms utilizing different CPUs without requiring modifications to source code or binaries. This innovative hardware virtualization technology facilitates the transportability of legacy enterprise applications, allowing IT managers to efficiently replicate and run these applications on modern, standardized platforms. By doing so, Transitive helps organizations avoid the costs and delays associated with traditional software porting projects, delivering performance comparable to native applications.
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