Greylock

Greylock, established in 1965, is a venture capital firm headquartered in Menlo Park, California, with additional offices in San Francisco and Wellesley, Massachusetts. The firm specializes in investing in consumer and enterprise software companies at various stages, from seed to growth. Greylock focuses on backing entrepreneurs who define new markets, with notable investments including Airbnb, Facebook, and LinkedIn. The firm typically invests between $0.05 million and $200 million per company, aiming to take a board seat in its portfolio companies. Greylock's investment focus spans across the United States, India, China, Europe, and Israel.

Jacob Andreou

General Partner

Jerry Chen

General Partner

Gerald Chen

Partner

Mike Duboe

General Partner

Roger Evans

Partner

Tom Frangione

COO

Bob Henderson

Special Limited Partner

Christine Kim

Partner

Josh Mcfarland

Partner

Corinne Riley

Partner

Jason Risch

Investor

Seth Rosenberg

Investor

Dave Strohm

Partner

Don Sullivan

Administrative Partner

David Sze

General Partner

David Thacker

General Partner

Past deals in Network Security

Censys

Series C in 2023
Censys, Inc. specializes in internet scanning and asset identification solutions, offering a platform that enables organizations to gain a real-time view of global networks and devices. Founded in 2017 and based in Ann Arbor, Michigan, Censys provides tools for attack surface management, allowing users to discover unknown assets, monitor remote workforces, and identify threat actors. Its internet intelligence platform is designed for threat hunting and exposure management, creating a comprehensive dataset that enhances visibility into vulnerabilities and internet-exposed infrastructure. This enables businesses to efficiently locate and manage the devices, networks, and infrastructure that are critical to their operations.

Espresso Systems

Seed Round in 2022
Espresso Systems specializes in providing scaling and privacy solutions for Web 3 applications, focusing on the innovative area of shared sequencing within blockchain technology. This involves the use of sequencers that verify and batch transactions on layer-2 blockchains before sending them to a layer-1 chain, such as Ethereum, for settlement. Additionally, Espresso Systems develops online transaction technology aimed at enhancing the online payment industry, offering infrastructure that facilitates secure and efficient online interactions. Their solutions cater to the needs of clients in the online transaction sector, contributing to the advancement of the third generation of the World Wide Web.

Censys

Series B in 2022
Censys, Inc. specializes in internet scanning and asset identification solutions, offering a platform that enables organizations to gain a real-time view of global networks and devices. Founded in 2017 and based in Ann Arbor, Michigan, Censys provides tools for attack surface management, allowing users to discover unknown assets, monitor remote workforces, and identify threat actors. Its internet intelligence platform is designed for threat hunting and exposure management, creating a comprehensive dataset that enhances visibility into vulnerabilities and internet-exposed infrastructure. This enables businesses to efficiently locate and manage the devices, networks, and infrastructure that are critical to their operations.

Cato Networks

Series F in 2021
Cato Networks Ltd. is a provider of a cloud-based network Security-as-a-Service platform that integrates networking and security solutions for enterprises. Founded in 2015 and headquartered in Tel Aviv, Israel, with additional offices in locations such as California, the United Kingdom, Singapore, Hong Kong, and Australia, the company offers a secure global SD-WAN. Cato's platform connects various enterprise locations, personnel, and data while optimizing application access across all users and locations. Key features include WAN optimization, firewall protection, secure web gateways, and threat protection. Cato Networks enables organizations to reduce costs associated with MPLS, improve performance for global locations and cloud applications, and eliminate the need for branch appliances, all while providing secure internet access and integrating mobile users and cloud data centers into the network seamlessly.

Cato Networks

Series E in 2020
Cato Networks Ltd. is a provider of a cloud-based network Security-as-a-Service platform that integrates networking and security solutions for enterprises. Founded in 2015 and headquartered in Tel Aviv, Israel, with additional offices in locations such as California, the United Kingdom, Singapore, Hong Kong, and Australia, the company offers a secure global SD-WAN. Cato's platform connects various enterprise locations, personnel, and data while optimizing application access across all users and locations. Key features include WAN optimization, firewall protection, secure web gateways, and threat protection. Cato Networks enables organizations to reduce costs associated with MPLS, improve performance for global locations and cloud applications, and eliminate the need for branch appliances, all while providing secure internet access and integrating mobile users and cloud data centers into the network seamlessly.

Censys

Series A in 2020
Censys, Inc. specializes in internet scanning and asset identification solutions, offering a platform that enables organizations to gain a real-time view of global networks and devices. Founded in 2017 and based in Ann Arbor, Michigan, Censys provides tools for attack surface management, allowing users to discover unknown assets, monitor remote workforces, and identify threat actors. Its internet intelligence platform is designed for threat hunting and exposure management, creating a comprehensive dataset that enhances visibility into vulnerabilities and internet-exposed infrastructure. This enables businesses to efficiently locate and manage the devices, networks, and infrastructure that are critical to their operations.

Arista NDR

Series C in 2020
Awake Security, Inc. specializes in network traffic analysis, providing a platform that autonomously identifies and assesses threats within various network environments. Founded in 2014 and based in Santa Clara, California, the company offers its Awake platform, which leverages machine learning, threat intelligence, and human expertise to analyze vast amounts of communication data. This platform profiles and classifies users, devices, and applications, enabling the detection of malicious intent from both insider and external threats. With capabilities for automated investigation and response, Awake enhances security team productivity by delivering actionable insights rather than mere alerts. Furthermore, the company offers security strategy and advisory solutions, ensuring comprehensive protection across traditional, IoT, and cloud networks. Awake Security operates as a subsidiary of Arista Networks, Inc. as of October 2020.

Cato Networks

Series D in 2020
Cato Networks Ltd. is a provider of a cloud-based network Security-as-a-Service platform that integrates networking and security solutions for enterprises. Founded in 2015 and headquartered in Tel Aviv, Israel, with additional offices in locations such as California, the United Kingdom, Singapore, Hong Kong, and Australia, the company offers a secure global SD-WAN. Cato's platform connects various enterprise locations, personnel, and data while optimizing application access across all users and locations. Key features include WAN optimization, firewall protection, secure web gateways, and threat protection. Cato Networks enables organizations to reduce costs associated with MPLS, improve performance for global locations and cloud applications, and eliminate the need for branch appliances, all while providing secure internet access and integrating mobile users and cloud data centers into the network seamlessly.

Cato Networks

Series C in 2019
Cato Networks Ltd. is a provider of a cloud-based network Security-as-a-Service platform that integrates networking and security solutions for enterprises. Founded in 2015 and headquartered in Tel Aviv, Israel, with additional offices in locations such as California, the United Kingdom, Singapore, Hong Kong, and Australia, the company offers a secure global SD-WAN. Cato's platform connects various enterprise locations, personnel, and data while optimizing application access across all users and locations. Key features include WAN optimization, firewall protection, secure web gateways, and threat protection. Cato Networks enables organizations to reduce costs associated with MPLS, improve performance for global locations and cloud applications, and eliminate the need for branch appliances, all while providing secure internet access and integrating mobile users and cloud data centers into the network seamlessly.

Censys

Seed Round in 2018
Censys, Inc. specializes in internet scanning and asset identification solutions, offering a platform that enables organizations to gain a real-time view of global networks and devices. Founded in 2017 and based in Ann Arbor, Michigan, Censys provides tools for attack surface management, allowing users to discover unknown assets, monitor remote workforces, and identify threat actors. Its internet intelligence platform is designed for threat hunting and exposure management, creating a comprehensive dataset that enhances visibility into vulnerabilities and internet-exposed infrastructure. This enables businesses to efficiently locate and manage the devices, networks, and infrastructure that are critical to their operations.

Arista NDR

Venture Round in 2017
Awake Security, Inc. specializes in network traffic analysis, providing a platform that autonomously identifies and assesses threats within various network environments. Founded in 2014 and based in Santa Clara, California, the company offers its Awake platform, which leverages machine learning, threat intelligence, and human expertise to analyze vast amounts of communication data. This platform profiles and classifies users, devices, and applications, enabling the detection of malicious intent from both insider and external threats. With capabilities for automated investigation and response, Awake enhances security team productivity by delivering actionable insights rather than mere alerts. Furthermore, the company offers security strategy and advisory solutions, ensuring comprehensive protection across traditional, IoT, and cloud networks. Awake Security operates as a subsidiary of Arista Networks, Inc. as of October 2020.

Synack

Series C in 2017
Synack, Inc. is a cybersecurity company that offers a crowdsourced security platform focused on penetration testing. Founded in 2013 and headquartered in Redwood City, California, Synack connects organizations with a network of skilled ethical hackers who utilize proprietary scanning technology to assess security vulnerabilities. The platform provides a secure virtual testing environment where researchers can evaluate systems, helping to ensure data integrity, privacy, and confidentiality for clients. Synack's services encompass application security, cloud security, vulnerability management, and more, facilitating continuous testing of attack surfaces. By combining human intelligence from ethical hackers with artificial intelligence technology, Synack delivers scalable, efficient security assessments that yield actionable insights for organizations seeking to enhance their cybersecurity posture.

Cato Networks

Series B in 2016
Cato Networks Ltd. is a provider of a cloud-based network Security-as-a-Service platform that integrates networking and security solutions for enterprises. Founded in 2015 and headquartered in Tel Aviv, Israel, with additional offices in locations such as California, the United Kingdom, Singapore, Hong Kong, and Australia, the company offers a secure global SD-WAN. Cato's platform connects various enterprise locations, personnel, and data while optimizing application access across all users and locations. Key features include WAN optimization, firewall protection, secure web gateways, and threat protection. Cato Networks enables organizations to reduce costs associated with MPLS, improve performance for global locations and cloud applications, and eliminate the need for branch appliances, all while providing secure internet access and integrating mobile users and cloud data centers into the network seamlessly.

Synack

Series B in 2015
Synack, Inc. is a cybersecurity company that offers a crowdsourced security platform focused on penetration testing. Founded in 2013 and headquartered in Redwood City, California, Synack connects organizations with a network of skilled ethical hackers who utilize proprietary scanning technology to assess security vulnerabilities. The platform provides a secure virtual testing environment where researchers can evaluate systems, helping to ensure data integrity, privacy, and confidentiality for clients. Synack's services encompass application security, cloud security, vulnerability management, and more, facilitating continuous testing of attack surfaces. By combining human intelligence from ethical hackers with artificial intelligence technology, Synack delivers scalable, efficient security assessments that yield actionable insights for organizations seeking to enhance their cybersecurity posture.

OpenDNS

Series C in 2014
OpenDNS is a provider of Internet security and Domain Name System (DNS) services tailored for homes and businesses. The company specializes in delivering an extensive security network that encompasses web content filtering, anti-phishing measures, and reliable DNS infrastructure. These services empower consumers and administrators to safeguard their networks against online threats while facilitating the enforcement of internet usage policies. Through its innovative solutions, OpenDNS aims to enhance online safety and improve navigation for users across various platforms.

Synack

Series A in 2014
Synack, Inc. is a cybersecurity company that offers a crowdsourced security platform focused on penetration testing. Founded in 2013 and headquartered in Redwood City, California, Synack connects organizations with a network of skilled ethical hackers who utilize proprietary scanning technology to assess security vulnerabilities. The platform provides a secure virtual testing environment where researchers can evaluate systems, helping to ensure data integrity, privacy, and confidentiality for clients. Synack's services encompass application security, cloud security, vulnerability management, and more, facilitating continuous testing of attack surfaces. By combining human intelligence from ethical hackers with artificial intelligence technology, Synack delivers scalable, efficient security assessments that yield actionable insights for organizations seeking to enhance their cybersecurity posture.

Lookout

Series E in 2013
Lookout, Inc. is a cybersecurity company specializing in cloud-based technology solutions for mobile security. Founded in 2005 and headquartered in San Francisco, California, with additional offices in major cities worldwide, Lookout offers a range of products including mobile security apps for both Android and iOS devices. Its solutions encompass Mobile Threat Protection, a Mobile Intelligence Center for real-time threat investigations, and an App Vetting API designed to secure enterprise and commercial app stores. By providing organizations with tools to enable bring-your-own-device (BYOD) policies, ensure compliance, and combat advanced mobile threats, Lookout empowers enterprises and individuals to safeguard their sensitive data across devices, applications, networks, and clouds. The company's platform is trusted by various enterprises, government agencies, and millions of consumers, allowing them to manage their data securely and efficiently.

Synack

Seed Round in 2013
Synack, Inc. is a cybersecurity company that offers a crowdsourced security platform focused on penetration testing. Founded in 2013 and headquartered in Redwood City, California, Synack connects organizations with a network of skilled ethical hackers who utilize proprietary scanning technology to assess security vulnerabilities. The platform provides a secure virtual testing environment where researchers can evaluate systems, helping to ensure data integrity, privacy, and confidentiality for clients. Synack's services encompass application security, cloud security, vulnerability management, and more, facilitating continuous testing of attack surfaces. By combining human intelligence from ethical hackers with artificial intelligence technology, Synack delivers scalable, efficient security assessments that yield actionable insights for organizations seeking to enhance their cybersecurity posture.

Morta Security

Seed Round in 2013
Morta Security is a stealth-mode start-up focused on developing innovative solutions to counter advanced cyber threats faced by large enterprises. Recognizing the inadequacies of traditional layered network defenses, Morta aims to revolutionize cybersecurity by employing a unique technology that effectively combats advanced malware. The company is led by a team of experienced executives and engineers with backgrounds in the National Security Agency, which enhances their capability to tackle complex network security challenges. By combining start-up agility with military-grade technology, Morta is positioned to transform the cybersecurity landscape and is actively seeking top talent to further its mission.

AtHoc

Venture Round in 2012
AtHoc, Inc. is a leader in networked crisis communication solutions, offering a comprehensive suite of products designed to enhance emergency notification and response capabilities. The company’s offerings include AtHoc Alert, a streamlined emergency notification system; AtHoc Collect, which facilitates real-time reporting from on-site personnel; AtHoc Account, providing visibility into personnel location and status during crises; and AtHoc Connect, enabling the creation of secure, permission-based communication networks. Founded in 1999 and headquartered in San Mateo, California, AtHoc serves a diverse clientele that includes the U.S. Department of Defense, the U.S. Department of Homeland Security, and various commercial and governmental organizations. The company is recognized for its innovative approach to mass notification systems, catering to sectors such as security, healthcare, and public safety. In 2015, AtHoc became a subsidiary of BlackBerry Limited, further enhancing its capabilities and market reach.

Impermium

Seed Round in 2011
Impermium is a cybersecurity technology startup that specializes in protecting online businesses from cybercrime. With a focus on real-time monitoring, the company has developed an advanced risk-evaluation platform that helps identify fraudulent registrations, compromised logins, and risky transactions. It serves over 1.5 million sites and has processed more than 8 billion transactions in its short history. By utilizing a combination of machine learning, statistical anomaly detection, and a proprietary database of malicious actors, Impermium effectively stops fraudulent user account registrations in real time. This technology is particularly beneficial for large consumer Internet companies, enabling them to eliminate fraud and web abuse while enhancing overall account management.

OpenDNS

Venture Round in 2010
OpenDNS is a provider of Internet security and Domain Name System (DNS) services tailored for homes and businesses. The company specializes in delivering an extensive security network that encompasses web content filtering, anti-phishing measures, and reliable DNS infrastructure. These services empower consumers and administrators to safeguard their networks against online threats while facilitating the enforcement of internet usage policies. Through its innovative solutions, OpenDNS aims to enhance online safety and improve navigation for users across various platforms.

OpenDNS

Venture Round in 2009
OpenDNS is a provider of Internet security and Domain Name System (DNS) services tailored for homes and businesses. The company specializes in delivering an extensive security network that encompasses web content filtering, anti-phishing measures, and reliable DNS infrastructure. These services empower consumers and administrators to safeguard their networks against online threats while facilitating the enforcement of internet usage policies. Through its innovative solutions, OpenDNS aims to enhance online safety and improve navigation for users across various platforms.

Palo Alto Networks

Series C in 2008
Palo Alto Networks is a California-based cybersecurity company that provides a comprehensive range of security solutions for organizations. The firm specializes in network security, cloud security, and security operations, making it a platform-based vendor in the cybersecurity space. With over 80,000 enterprise customers globally, Palo Alto Networks serves a significant portion of the Global 2000, demonstrating its prominent position in the industry. The company's offerings are designed to protect organizations from evolving cyber threats, ensuring robust security across various digital environments.

Mazu Networks

Series D in 2008
Mazu Networks, Inc. specializes in network infrastructure software that enables IT organizations to manage, secure, and optimize the performance and availability of business services. The company provides solutions such as Mazu Profiler, a network behavior analysis system that delivers behavioral analytics, user identification, and application fingerprinting, while integrating with other systems to support various IT initiatives, including application performance management and security compliance. Mazu Profiler Discovery aids in identifying configuration items across networks for inventory and dependency management. The company's offerings assist in data center migration, disaster recovery planning, and virtualization, catering to clients in sectors like financial services, technology, and media. Founded in 2000 and headquartered in Cambridge, Massachusetts, Mazu Networks also has offices in several major U.S. cities and operates as a subsidiary of Riverbed Technology.

Imperva

Series D in 2008
Imperva, Inc. is a cybersecurity company based in Redwood Shores, California, that specializes in protecting critical business data and applications across cloud and on-premises environments. Founded in 2002, Imperva develops a range of security solutions, including its SecureSphere product line, which offers database, file, and web application security. The company’s services also include Incapsula, which provides cloud-based website security and distributed denial of service protection, as well as ThreatRadar for crowdsourced security intelligence. Additionally, CounterBreach safeguards enterprise data against loss from compromised users, and Imperva Camouflage Data Masking allows for the secure use of sensitive information in development and testing. Imperva serves various sectors, including finance, healthcare, retail, and telecommunications, through a network of distributors and resellers, while also offering ongoing support and professional services.

Silver Peak Systems

Series D in 2008
Silver Peak Systems, Inc. specializes in broadband and hybrid WAN solutions designed to connect users to applications effectively. The company provides Unity EdgeConnect, a software-defined WAN that facilitates a gradual transition to broadband WAN, whether site-by-site or through a hybrid approach that combines MPLS and broadband Internet. Additionally, Silver Peak offers WAN optimization solutions aimed at enhancing application performance across branch offices, data centers, and the cloud, featuring both virtual and physical WAN optimization appliances. Their product lineup includes replication acceleration solutions to optimize offsite data replication and various compatible data protection products. Established in 2004 and based in Santa Clara, California, Silver Peak operates as a subsidiary of Aruba Networks, following its acquisition in September 2020.

Palo Alto Networks

Series B in 2007
Palo Alto Networks is a California-based cybersecurity company that provides a comprehensive range of security solutions for organizations. The firm specializes in network security, cloud security, and security operations, making it a platform-based vendor in the cybersecurity space. With over 80,000 enterprise customers globally, Palo Alto Networks serves a significant portion of the Global 2000, demonstrating its prominent position in the industry. The company's offerings are designed to protect organizations from evolving cyber threats, ensuring robust security across various digital environments.

Silver Peak Systems

Series C in 2007
Silver Peak Systems, Inc. specializes in broadband and hybrid WAN solutions designed to connect users to applications effectively. The company provides Unity EdgeConnect, a software-defined WAN that facilitates a gradual transition to broadband WAN, whether site-by-site or through a hybrid approach that combines MPLS and broadband Internet. Additionally, Silver Peak offers WAN optimization solutions aimed at enhancing application performance across branch offices, data centers, and the cloud, featuring both virtual and physical WAN optimization appliances. Their product lineup includes replication acceleration solutions to optimize offsite data replication and various compatible data protection products. Established in 2004 and based in Santa Clara, California, Silver Peak operates as a subsidiary of Aruba Networks, following its acquisition in September 2020.

PortAuthority Technologies

Series D in 2006
PortAuthority Technologies, Inc. specializes in developing security software designed to manage the communication of sensitive information through outbound email, internal channels, and the web. The company focuses on information leak prevention and data recovery solutions, effectively monitoring enterprise communications to prevent the unauthorized dissemination of confidential data. In addition to its core software offerings, PortAuthority provides a range of services, including risk assessment, risk visibility, risk remediation, and installation support. Its solutions cater to various industries, including financial services, healthcare, government, and technology, emphasizing the importance of safeguarding sensitive information in today's digital landscape.

Forcepoint

Post in 2006
Forcepoint LLC is a leading provider of cybersecurity solutions, founded in 2015 and headquartered in Austin, Texas, with an additional center in Cork, Ireland. The company operates as a subsidiary of Raytheon Company. Forcepoint specializes in protecting users, data, and networks against both internal and external threats across various industries such as financial services, healthcare, government, and justice & public safety. Its comprehensive suite of solutions includes content security (TRITON APX Suite, TRITON AP-EMAIL, TRITON AP-WEB), insider threat protection (TRITON AP-DATA, TRITON AP-ENDPOINT), cloud security (TRITON AP-EMAIL Cloud, TRITON AP-WEB Cloud), Linux threat protection, advanced analytics (SureView Analytics), and network security solutions (Forcepoint Stonesoft NGFW). Additionally, Forcepoint offers services in data security consulting, cybersecurity intelligence, implementation packages, training, and certifications. The company aims to simplify security management by providing a unified, cloud-centric platform that enables organizations to safely embrace transformative technologies such as cloud, mobility, and the Internet of Things (IoT).

Imperva

Series C in 2006
Imperva, Inc. is a cybersecurity company based in Redwood Shores, California, that specializes in protecting critical business data and applications across cloud and on-premises environments. Founded in 2002, Imperva develops a range of security solutions, including its SecureSphere product line, which offers database, file, and web application security. The company’s services also include Incapsula, which provides cloud-based website security and distributed denial of service protection, as well as ThreatRadar for crowdsourced security intelligence. Additionally, CounterBreach safeguards enterprise data against loss from compromised users, and Imperva Camouflage Data Masking allows for the secure use of sensitive information in development and testing. Imperva serves various sectors, including finance, healthcare, retail, and telecommunications, through a network of distributors and resellers, while also offering ongoing support and professional services.

Mazu Networks

Venture Round in 2006
Mazu Networks, Inc. specializes in network infrastructure software that enables IT organizations to manage, secure, and optimize the performance and availability of business services. The company provides solutions such as Mazu Profiler, a network behavior analysis system that delivers behavioral analytics, user identification, and application fingerprinting, while integrating with other systems to support various IT initiatives, including application performance management and security compliance. Mazu Profiler Discovery aids in identifying configuration items across networks for inventory and dependency management. The company's offerings assist in data center migration, disaster recovery planning, and virtualization, catering to clients in sectors like financial services, technology, and media. Founded in 2000 and headquartered in Cambridge, Massachusetts, Mazu Networks also has offices in several major U.S. cities and operates as a subsidiary of Riverbed Technology.

Silver Peak Systems

Series B in 2006
Silver Peak Systems, Inc. specializes in broadband and hybrid WAN solutions designed to connect users to applications effectively. The company provides Unity EdgeConnect, a software-defined WAN that facilitates a gradual transition to broadband WAN, whether site-by-site or through a hybrid approach that combines MPLS and broadband Internet. Additionally, Silver Peak offers WAN optimization solutions aimed at enhancing application performance across branch offices, data centers, and the cloud, featuring both virtual and physical WAN optimization appliances. Their product lineup includes replication acceleration solutions to optimize offsite data replication and various compatible data protection products. Established in 2004 and based in Santa Clara, California, Silver Peak operates as a subsidiary of Aruba Networks, following its acquisition in September 2020.

Palo Alto Networks

Series A in 2006
Palo Alto Networks is a California-based cybersecurity company that provides a comprehensive range of security solutions for organizations. The firm specializes in network security, cloud security, and security operations, making it a platform-based vendor in the cybersecurity space. With over 80,000 enterprise customers globally, Palo Alto Networks serves a significant portion of the Global 2000, demonstrating its prominent position in the industry. The company's offerings are designed to protect organizations from evolving cyber threats, ensuring robust security across various digital environments.

Silver Peak Systems

Series A in 2005
Silver Peak Systems, Inc. specializes in broadband and hybrid WAN solutions designed to connect users to applications effectively. The company provides Unity EdgeConnect, a software-defined WAN that facilitates a gradual transition to broadband WAN, whether site-by-site or through a hybrid approach that combines MPLS and broadband Internet. Additionally, Silver Peak offers WAN optimization solutions aimed at enhancing application performance across branch offices, data centers, and the cloud, featuring both virtual and physical WAN optimization appliances. Their product lineup includes replication acceleration solutions to optimize offsite data replication and various compatible data protection products. Established in 2004 and based in Santa Clara, California, Silver Peak operates as a subsidiary of Aruba Networks, following its acquisition in September 2020.

PortAuthority Technologies

Series C in 2005
PortAuthority Technologies, Inc. specializes in developing security software designed to manage the communication of sensitive information through outbound email, internal channels, and the web. The company focuses on information leak prevention and data recovery solutions, effectively monitoring enterprise communications to prevent the unauthorized dissemination of confidential data. In addition to its core software offerings, PortAuthority provides a range of services, including risk assessment, risk visibility, risk remediation, and installation support. Its solutions cater to various industries, including financial services, healthcare, government, and technology, emphasizing the importance of safeguarding sensitive information in today's digital landscape.

Palo Alto Networks

Series A in 2005
Palo Alto Networks is a California-based cybersecurity company that provides a comprehensive range of security solutions for organizations. The firm specializes in network security, cloud security, and security operations, making it a platform-based vendor in the cybersecurity space. With over 80,000 enterprise customers globally, Palo Alto Networks serves a significant portion of the Global 2000, demonstrating its prominent position in the industry. The company's offerings are designed to protect organizations from evolving cyber threats, ensuring robust security across various digital environments.

AtHoc

Venture Round in 2005
AtHoc, Inc. is a leader in networked crisis communication solutions, offering a comprehensive suite of products designed to enhance emergency notification and response capabilities. The company’s offerings include AtHoc Alert, a streamlined emergency notification system; AtHoc Collect, which facilitates real-time reporting from on-site personnel; AtHoc Account, providing visibility into personnel location and status during crises; and AtHoc Connect, enabling the creation of secure, permission-based communication networks. Founded in 1999 and headquartered in San Mateo, California, AtHoc serves a diverse clientele that includes the U.S. Department of Defense, the U.S. Department of Homeland Security, and various commercial and governmental organizations. The company is recognized for its innovative approach to mass notification systems, catering to sectors such as security, healthcare, and public safety. In 2015, AtHoc became a subsidiary of BlackBerry Limited, further enhancing its capabilities and market reach.

Mazu Networks

Series C in 2004
Mazu Networks, Inc. specializes in network infrastructure software that enables IT organizations to manage, secure, and optimize the performance and availability of business services. The company provides solutions such as Mazu Profiler, a network behavior analysis system that delivers behavioral analytics, user identification, and application fingerprinting, while integrating with other systems to support various IT initiatives, including application performance management and security compliance. Mazu Profiler Discovery aids in identifying configuration items across networks for inventory and dependency management. The company's offerings assist in data center migration, disaster recovery planning, and virtualization, catering to clients in sectors like financial services, technology, and media. Founded in 2000 and headquartered in Cambridge, Massachusetts, Mazu Networks also has offices in several major U.S. cities and operates as a subsidiary of Riverbed Technology.

AtHoc

Convertible Note in 2003
AtHoc, Inc. is a leader in networked crisis communication solutions, offering a comprehensive suite of products designed to enhance emergency notification and response capabilities. The company’s offerings include AtHoc Alert, a streamlined emergency notification system; AtHoc Collect, which facilitates real-time reporting from on-site personnel; AtHoc Account, providing visibility into personnel location and status during crises; and AtHoc Connect, enabling the creation of secure, permission-based communication networks. Founded in 1999 and headquartered in San Mateo, California, AtHoc serves a diverse clientele that includes the U.S. Department of Defense, the U.S. Department of Homeland Security, and various commercial and governmental organizations. The company is recognized for its innovative approach to mass notification systems, catering to sectors such as security, healthcare, and public safety. In 2015, AtHoc became a subsidiary of BlackBerry Limited, further enhancing its capabilities and market reach.

Decru

Series B in 2002
Decru, Inc. specializes in providing storage security solutions tailored for enterprises and government organizations. Established in 2001 and headquartered in Redwood City, California, the company addresses critical business needs such as privacy, regulatory compliance, intellectual property protection, and internal controls. Decru's DataFort storage security appliances help organizations secure their networked storage environments, safeguarding data from both internal and external threats. Additionally, the company offers a software recovery tool compatible with UNIX and Windows workstations. Decru's solutions find applications in various sectors, including financial services, healthcare, telecommunications, media, semiconductors, aerospace, manufacturing, and government. As of 2005, Decru operates as a subsidiary of NetApp, Inc.

AtHoc

Series C in 2001
AtHoc, Inc. is a leader in networked crisis communication solutions, offering a comprehensive suite of products designed to enhance emergency notification and response capabilities. The company’s offerings include AtHoc Alert, a streamlined emergency notification system; AtHoc Collect, which facilitates real-time reporting from on-site personnel; AtHoc Account, providing visibility into personnel location and status during crises; and AtHoc Connect, enabling the creation of secure, permission-based communication networks. Founded in 1999 and headquartered in San Mateo, California, AtHoc serves a diverse clientele that includes the U.S. Department of Defense, the U.S. Department of Homeland Security, and various commercial and governmental organizations. The company is recognized for its innovative approach to mass notification systems, catering to sectors such as security, healthcare, and public safety. In 2015, AtHoc became a subsidiary of BlackBerry Limited, further enhancing its capabilities and market reach.

New Edge Networks

Series C in 2000
New Edge Networks is a national provider specializing in secure multi-site managed data networks and dedicated Internet access. The company offers Internet services primarily through digital subscriber line (DSL) technology, catering to residences and businesses in small cities and semi-rural areas. In addition to DSL connections, New Edge Networks provides a range of services, including wide area networks, virtual private networks, and frame relay, ensuring comprehensive connectivity solutions for its clients.

AtHoc

Series B in 2000
AtHoc, Inc. is a leader in networked crisis communication solutions, offering a comprehensive suite of products designed to enhance emergency notification and response capabilities. The company’s offerings include AtHoc Alert, a streamlined emergency notification system; AtHoc Collect, which facilitates real-time reporting from on-site personnel; AtHoc Account, providing visibility into personnel location and status during crises; and AtHoc Connect, enabling the creation of secure, permission-based communication networks. Founded in 1999 and headquartered in San Mateo, California, AtHoc serves a diverse clientele that includes the U.S. Department of Defense, the U.S. Department of Homeland Security, and various commercial and governmental organizations. The company is recognized for its innovative approach to mass notification systems, catering to sectors such as security, healthcare, and public safety. In 2015, AtHoc became a subsidiary of BlackBerry Limited, further enhancing its capabilities and market reach.

Mazu Networks

Series A in 2000
Mazu Networks, Inc. specializes in network infrastructure software that enables IT organizations to manage, secure, and optimize the performance and availability of business services. The company provides solutions such as Mazu Profiler, a network behavior analysis system that delivers behavioral analytics, user identification, and application fingerprinting, while integrating with other systems to support various IT initiatives, including application performance management and security compliance. Mazu Profiler Discovery aids in identifying configuration items across networks for inventory and dependency management. The company's offerings assist in data center migration, disaster recovery planning, and virtualization, catering to clients in sectors like financial services, technology, and media. Founded in 2000 and headquartered in Cambridge, Massachusetts, Mazu Networks also has offices in several major U.S. cities and operates as a subsidiary of Riverbed Technology.

New Edge Networks

Series B in 2000
New Edge Networks is a national provider specializing in secure multi-site managed data networks and dedicated Internet access. The company offers Internet services primarily through digital subscriber line (DSL) technology, catering to residences and businesses in small cities and semi-rural areas. In addition to DSL connections, New Edge Networks provides a range of services, including wide area networks, virtual private networks, and frame relay, ensuring comprehensive connectivity solutions for its clients.

NetScout Systems

Series A in 1996
NetScout Systems Inc is a provider of service assurance and cybersecurity solutions tailored for enterprise and government networks. The company employs proprietary adaptive service intelligence technology to enable organizations to monitor network performance and identify security threats effectively. Its offerings include tools that deliver both real-time and historical insights, allowing customers to restore services and enhance user experience quality. NetScout's Visibility Without Borders® platform is utilized by major organizations worldwide, ensuring performance, security, and availability across data centers, cloud environments, and edge networks. The company generates revenue primarily through the sale of network management tools and security solutions, with significant revenue contributions from the United States, as well as Europe and Asia.
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