Tenable

Tenable Holdings, Inc., established in 2002 and headquartered in Columbia, Maryland, specializes in cybersecurity solutions. The company's core business is providing an enterprise software platform that offers visibility into an organization's cyber exposure across diverse attack surfaces, from traditional IT assets to modern IT and operational technology environments. Tenable's platform, which includes Tenable.io (SaaS) and Tenable.sc (on-premises), helps businesses translate vulnerability data into actionable insights to manage and reduce cybersecurity risks effectively. The company has expanded its portfolio to include cloud security, active directory management, operational technology security, and advanced vulnerability analytics. Tenable also manages an early-stage venture capital fund, Tenable Ventures, focused on investing in cybersecurity risk management sectors.

Matthew Olton

Senior Vice President, Strategy and Corporate Development

Steve Vintz

CFO

13 past transactions

Vulcan Cyber

Acquisition in 2025
Vulcan Cyber Ltd. operates a vulnerability remediation platform that focuses on managing and reducing organizational cyber risk. Founded in 2018 and based in Tel Aviv-Yafo, Israel, with an additional office in San Francisco, California, the company offers a software-as-a-service (SaaS) platform that integrates with existing tools to streamline cybersecurity processes. This platform enables security teams to prioritize and orchestrate efforts across various environments, providing the insights needed to continuously eliminate exposed vulnerabilities in production systems. By supporting the entire cybersecurity lifecycle, Vulcan Cyber enhances risk management and strengthens organizational defenses against cyber threats.

Lineaje

Series A in 2024
Lineaje is a developer of a security management platform that addresses significant Software Supply Chain security challenges encountered by organizations involved in building, using, or selling software. The platform provides an accurate Software Bill of Materials (SBOM) that includes comprehensive transitive dependency rates. It features automatic attestation of integrity, proactive detection of threats and compromises, and ensures compliance for both public and private publishing. By offering these capabilities, Lineaje enables organizations to enhance their supply chain security effectively.

Ermetic - a Tenable company

Acquisition in 2023
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.

Lineaje

Seed Round in 2023
Lineaje is a developer of a security management platform that addresses significant Software Supply Chain security challenges encountered by organizations involved in building, using, or selling software. The platform provides an accurate Software Bill of Materials (SBOM) that includes comprehensive transitive dependency rates. It features automatic attestation of integrity, proactive detection of threats and compromises, and ensures compliance for both public and private publishing. By offering these capabilities, Lineaje enables organizations to enhance their supply chain security effectively.

Authomize (Now part of Delinea)

Venture Round in 2023
Authomize, based in Israel, specializes in identity and security management, providing a platform that automates the management of identities, access, and privileges across multi-cloud and hybrid environments. Its intelligent Prescriptive Analytics engine helps IT and security teams streamline operations surrounding authorizations, effectively preventing permission sprawl and enhancing productivity. By acting as a bridge between IT operations and security teams, Authomize reduces the operational burden tied to authorization processes while improving security posture and compliance. The platform features an API connector that integrates seamlessly with various identity providers and a wide range of applications, both on-premises and SaaS. Authomize is supported by notable investors, including Blumberg Capital and M12, as well as advisors from prominent companies in the tech industry.

Araali Networks

Venture Round in 2023
Araali Networks is a developer of a cloud-agnostic network security platform that focuses on hyper-automation in enterprise security. The platform provides auto-provisioning of lightweight controls for service access, accurately auto-detects threats, and organizes applications in production. It also offers real-time alerts and reporting, which help organizations effectively minimize security breaches. Additionally, the platform automatically remediates issues to further reduce cyber risks, making it a comprehensive solution for enhancing security in diverse IT environments.

Surfe

Seed Round in 2022
Surfe is a business that offers a Chrome extension designed to enhance customer relationship management (CRM) by integrating LinkedIn. This platform allows users to create and enrich contacts, find qualified emails, and synchronize LinkedIn conversations directly from a prospect's LinkedIn profile into their CRM with a single click. By automating lead capturing and data entry, Surfe helps businesses increase productivity and efficiency, enabling them to source prospects more quickly and effectively. The solution aims to streamline the sales process, allowing users to focus on building relationships rather than manual data management.

Bit Discovery

Acquisition in 2022
Bit Discovery, Inc. operates a platform focused on website asset inventory and portfolio management. Founded in 2018 and based in Santa Clara, California, the company provides tools that automate the continuous scanning of internet-connected assets. Its features include real-time notifications for changes to assets, advanced filtering for detailed information, and email alerts to keep users informed about their portfolios. By organizing extensive data and simplifying the management of various websites, Bit Discovery enables organizations to effectively track their web assets and promptly address any security issues that may arise.

Cymptom

Acquisition in 2022
Cymptom provides a security platform designed to proactively measure and manage cyber risk by identifying and mapping potential attack paths before they occur. The platform utilizes agentless data collection technology to continuously visualize viable attack scenarios across both on-premises and cloud environments. By aligning its risk assessment with the MITRE ATT&CK® framework, Cymptom enables organizations to understand and prioritize security gaps in real-time without the need for simulations or interference with existing security measures. This approach offers simple deployment and immediate insights, ensuring continuous cyber resilience and enabling organizations to safeguard their mission-critical assets without disrupting business operations.

Accurics

Acquisition in 2021
Accurics, Inc. is a cybersecurity company based in Pleasanton, California, that specializes in securing cloud-native infrastructure throughout the development and operational lifecycle. Founded in 2019, Accurics has developed a platform designed to protect hybrid and multi-cloud environments by scanning Infrastructure as Code for misconfigurations and potential vulnerabilities before the infrastructure is provisioned. The platform also continuously monitors production cloud deployments to detect changes that could introduce risks, allowing organizations to maintain a secure posture. By enabling organizations to codify security measures and programmatically address risks, Accurics supports compliance and governance efforts, fostering a secure environment for innovation in cloud technologies. The company also provides open-source tools to help organizations achieve cyber resilience.

Alsid

Acquisition in 2021
Alsid specializes in cybersecurity solutions focused on protecting Active Directory infrastructures, which are critical for corporate networks. The company develops a platform that employs advanced threat intelligence and machine learning to detect and combat cyberattacks. By continuously monitoring various parameters and processes within Active Directory, Alsid's technology identifies security vulnerabilities and ongoing attacks in real time. This agentless and easily deployable solution not only helps organizations uncover potential security gaps but also provides precise remediation strategies to effectively safeguard their directory systems. With its innovative approach, Alsid aims to enhance the security posture of businesses by addressing the vulnerabilities inherent in their directory infrastructures.

Indegy

Acquisition in 2019
Indegy Ltd. develops a comprehensive industrial cyber security platform that provides operational engineers and cyber security personnel with the tools to manage and secure industrial networks. This platform enables the detection of malicious activities, identification of unauthorized changes, and troubleshooting of issues related to control device misconfigurations or firmware updates. Indegy's offerings include an industrial cybersecurity suite, device integrity technology, enterprise management solutions, and cloud-based security technology. Additionally, the company provides services such as cyber security risk assessments, ICS security training, and security monitoring. Indegy serves various industries, including power and utilities, oil and gas, pharmaceuticals, automotive, food and beverage, building automation, and transportation and logistics. Founded in 2014 and headquartered in New York with an office in Tel Aviv, Indegy operates as a subsidiary of Tenable, Inc.

FlawCheck

Acquisition in 2016
FlawCheck Inc. is a cybersecurity company based in San Francisco, California, that specializes in container security and malware detection solutions. Founded in 2015, FlawCheck develops a vendor-agnostic platform designed to help organizations identify and mitigate risks associated with Linux containers. The company's technology focuses on detecting significant cybersecurity threats in container environments, enabling businesses to adopt containerization securely. In 2016, FlawCheck was acquired by Tenable Network Security and subsequently rebranded as Tenable.io Container Security, further enhancing its capabilities in the cybersecurity landscape.
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