Network security companies in Massachusetts play a crucial role in protecting organizations from cyber threats. They develop solutions that cover everything from safeguarding data to defending against unauthorized access. As threats evolve, these companies emphasize robust response strategies, often incorporating technologies like artificial intelligence and machine learning. With the rise of remote work and heightened regulations around data protection, the demand for cybersecurity services has surged. The industry is likely to see continued growth, spurred by innovation and the need for enterprises to shield their assets effectively.

The companies listed here represent a mix of sizes and specializations within the Massachusetts network security scene. Ranging from small startups to established players, such as RSA Security and Lookout, these firms showcase expertise in areas like threat detection, identity security, and secure access solutions. Most were founded in the early 2000s or later, reflecting a responsiveness to modern security needs, while operating primarily out of urban hubs like Boston. Each company brings unique offerings tailored to various industries, ranging from finance to healthcare.

Read on to learn more about Massachusetts' top network security companies.

Top 19 Network Security Companies in Massachusetts

1. Tufin

• Website: tufin.com
• Ownership type: Private Equity
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: Israel 47%, United States (USA) 31%, India 7%, Other 15%
• Latest funding: $570.0M, April 2022
• Founded year: 2005
• Headcount: 501-1000
• LinkedIn: tufin-technologies

Tufin, founded in 2005 and headquartered in Boston, Massachusetts, is a cybersecurity company that specializes in security policy management and network security solutions. With a workforce of approximately 472 employees, Tufin has made significant strides in automating firewall management and ensuring compliance with various regulations. Their flagship products, SecureTrack+ and SecureChange+, are utilized by organizations across multiple sectors, including financial services, healthcare, and technology, to enhance their network security posture. Tufin's solutions focus on streamlining firewall management, optimizing network configurations, and maintaining continuous compliance, which are critical in today's complex cybersecurity environment. The company has garnered attention and support from investors, securing $570 million in funding in April 2022, which underscores its growth trajectory and commitment to innovation in the cybersecurity space.

2. iboss

• Website: iboss.com
• Ownership type: Private Equity
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 71%, Philippines 12%, United Kingdom (UK) 12%, Other 6%
• Latest funding: Series B, $145.0M, January 2021
• Founded year: 2003
• Headcount: 201-500
• LinkedIn: iboss

iboss, founded in 2003 and based in Boston, Massachusetts, is a cybersecurity firm specializing in secure access solutions. The company has developed a Zero Trust Secure Access Service Edge platform that offers services like Zero Trust Network Access and Secure Web Gateway. These services are designed to protect data and applications, especially in remote work settings. With a workforce of around 341 employees, iboss serves a variety of sectors, including finance, healthcare, and education, all of which require stringent security measures. The company has attracted substantial investment, with a reported funding amount of $145 million in its Series B round in January 2021, reflecting strong market interest in its innovative security solutions.

3. North Atlantic Networks

• Website: nan.com
• Ownership type: Private
• Headquarters: North Attleborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1994
• Headcount: 11-50
• LinkedIn: securedbynan

North Atlantic Networks (NAN) is a cybersecurity firm based in North Attleborough, Massachusetts, founded in 1994. With a workforce of 11-50 employees, NAN specializes in delivering comprehensive security solutions tailored to the unique needs of businesses and organizations. Their service offerings include complete threat management, compliance assistance, and managed security services, catering to a variety of sectors such as healthcare, finance, and retail. NAN has established itself as a significant player in the cybersecurity industry, emphasizing a holistic approach to security that integrates technology and strategy. They have achieved recognition as the first MSSP in the United States to possess five advanced specializations from Fortinet, showcasing their expertise and commitment to high standards in cybersecurity. NAN's focus on proactive threat management and compliance ensures that their clients are well-protected against the ever-evolving landscape of cyber threats.

4. Seceon Inc.

• Website: seceon.com
• Ownership type: Private
• Headquarters: Westford, Massachusetts, United States (USA)
• Employee distribution: India 78%, United States (USA) 21%, Other 1%
• Founded year: 2015
• Headcount: 51-200
• LinkedIn: seceon

Seceon Inc., founded in 2015 and based in Westford, Massachusetts, is a cybersecurity firm specializing in advanced threat detection and response solutions. The company has developed an innovative platform that leverages artificial intelligence and machine learning to enhance real-time threat management. Seceon serves a variety of sectors, including finance, healthcare, and technology, providing comprehensive security services designed to simplify cybersecurity operations and improve the security posture of its clients. With a workforce of approximately 157 employees, a significant portion of whom are based in India, Seceon has positioned itself as a player in the global cybersecurity market. The company emphasizes its ability to integrate data from various sources, including logs, networks, and applications, to deliver effective security solutions. Seceon has not reported any recent funding, indicating a self-sustaining operational model as it continues to grow its customer base and enhance its offerings.

5. RSA Security

• Website: rsa.com
• Ownership type: Private Equity
• Headquarters: Bedford, Massachusetts, United States (USA)
• Latest funding: March 2021
• Founded year: 1982
• Headcount: 1001-5000
• LinkedIn: rsa-the-security-division-of-dell-technologies

RSA Security LLC, based in Bedford, Massachusetts, is a cybersecurity firm that specializes in identity security solutions. Founded in 1982, the company has developed a range of products aimed at helping organizations manage access and secure identities against cyber threats. Their flagship offerings include ID Plus, which provides comprehensive authentication and access capabilities across cloud, hybrid, and on-premises environments, and SecurID, which focuses on on-premises access and identity management. RSA serves a variety of sectors, including government and financial services, and is recognized for its tools that assist with compliance and risk management. The company has also been active in promoting advancements in identity security, such as passwordless authentication and risk-based authentication, positioning itself as a key player in the ongoing evolution of cybersecurity practices.

6. Lookout

• Website: lookout.com
• Ownership type: Private Equity
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 40%, India 33%, Canada 12%, Other 14%
• Latest funding: Other (Debt), $150.0M, June 2022
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: lookout

Lookout, founded in 2007 and based in Boston, Massachusetts, specializes in cybersecurity with a focus on mobile and cloud security solutions. The company provides a range of products designed to protect data and devices from advanced threats, catering primarily to businesses across various sectors, including healthcare and finance. Their services include mobile endpoint security, data loss prevention, and threat intelligence, all delivered through a Software as a Service (SaaS) model. Lookout has a significant presence in the industry, evidenced by their partnerships with notable companies like VMware and Fortra. In June 2022, they secured $150 million in funding, which underscores their growth trajectory and commitment to enhancing their security offerings. With a workforce of around 630 employees, Lookout continues to innovate in the cybersecurity space, addressing the evolving challenges posed by mobile and cloud environments.

7. Cynet Security

• Website: cynet.com
• Ownership type: Venture Capital
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: Israel 58%, United States (USA) 25%, Italy 8%, Other 9%
• Latest funding: Series C, $40.0M, March 2021
• Founded year: 2014
• Headcount: 201-500
• LinkedIn: cynet-security

Cynet Security, based in Boston, Massachusetts, is a cybersecurity firm that specializes in providing an all-in-one platform for endpoint, network, and cloud security solutions. Founded in 2014, Cynet has carved out a niche by focusing on the needs of managed service providers (MSPs) and small to medium enterprises (SMEs). The company offers a comprehensive suite of security technologies designed to protect against a wide array of cyber threats. Cynet's platform includes features such as endpoint protection, network detection and response, and security automation, all backed by 24/7 support from a team of security experts. The company has gained recognition for its performance in the 2023 MITRE Evaluation, achieving top scores in detection and visibility. Cynet has also attracted significant investment, securing $40 million in its Series C funding round in March 2021, which underscores its potential for growth and innovation in the cybersecurity space.

8. NetWitness

• Website: netwitness.com
• Ownership type: Corporate
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: India 27%, Egypt 22%, United States (USA) 18%, Other 34%
• Latest funding: April 2011
• Founded year: 1997
• Headcount: 1001-5000
• LinkedIn: netwitness-platform

NetWitness, based in Boston, Massachusetts, is a cybersecurity firm that specializes in threat detection and response solutions. Established in 1997, the company has built a robust platform that enables organizations to identify, investigate, and respond to cyber threats in real-time. Their offerings include Network Detection and Response (NDR), Security Information and Event Management (SIEM), Endpoint Detection and Response (EDR), and Security Orchestration and Automation (SOAR). NetWitness serves a wide array of clients across various sectors, providing essential tools to protect sensitive data and mitigate risks associated with cyberattacks. The company has a global workforce, with significant employee distribution in India and Egypt, reflecting its international reach. Their commitment to innovation is evident in their continuous development of advanced analytics and threat detection capabilities, which are crucial for modern businesses facing increasingly sophisticated cyber threats.

9. ReversingLabs

• Website: reversinglabs.com
• Ownership type: Private Equity
• Headquarters: Cambridge, Massachusetts, United States (USA)
• Employee distribution: Croatia 60%, United States (USA) 35%, United Kingdom (UK) 3%, Other 2%
• Latest funding: Series B, $56.0M, August 2021
• Founded year: 2009
• Headcount: 201-500
• LinkedIn: reversinglabs

ReversingLabs, founded in 2009 and based in Cambridge, Massachusetts, is a cybersecurity firm that specializes in software supply chain security and threat intelligence. The company offers a suite of solutions, including Spectra Assure, which helps organizations identify malware and vulnerabilities in software components. This capability is increasingly vital as businesses face growing risks associated with software deployment. ReversingLabs serves a variety of sectors, including government and education, providing tools that help mitigate risks in software usage. The company has a significant presence in the cybersecurity industry, bolstered by a recent Series B funding round that raised $56 million in August 2021. This funding reflects the market's recognition of the importance of software supply chain security and the effectiveness of ReversingLabs' offerings. With a workforce of over 300 employees, a substantial portion of whom are based in Croatia, ReversingLabs is positioned to continue its growth and impact in the cybersecurity field.

10. Thrive

• Website: thrivenextgen.com
• Ownership type: Private Equity
• Headquarters: Foxborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 70%, United Kingdom (UK) 11%, Philippines 10%, Other 9%
• Latest funding: January 2025
• Founded year: 2000
• Headcount: 1001-5000
• LinkedIn: thrive-networks

Thrive, based in Foxborough, Massachusetts, is an IT consulting and managed services provider founded in 2000. With a workforce of approximately 1,769 employees, Thrive specializes in a wide array of technology solutions, prominently featuring cybersecurity, cloud services, and IT infrastructure management. The company serves clients across various sectors, including financial services and healthcare, focusing on enhancing operational efficiency and security. Thrive's cybersecurity offerings include managed detection and response, autonomous penetration testing, and incident response services, showcasing their commitment to safeguarding client data. Their approach is characterized by tailored services that address the unique IT challenges faced by their clients, making them a significant player in the cybersecurity industry.

11. Technium, Inc.

• Website: techniumnetworking.com
• Ownership type: Private
• Headquarters: Marlborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 86%, Lithuania 7%, Canada 7%
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: technium-inc-

Technium, Inc., founded in 1999 and based in Marlborough, Massachusetts, is a private company that specializes in networking services with a strong emphasis on security. With a workforce of approximately 56 employees, Technium caters primarily to small and medium-sized businesses, particularly those operating in regulated sectors such as biotech, life sciences, legal, and financial services. The company offers a range of services, including Network as a Service (NaaS), Connectivity Intelligence, and Security Intelligence. Their approach integrates security into the core of network design and management, ensuring that clients can operate securely and efficiently. Technium is dedicated to understanding the unique needs of each client, providing tailored solutions that enhance network performance and security. Their commitment to training and developing network engineers further underscores their involvement in the industry, as they aim to elevate the standards of network security practices.

12. ObserveIT

• Website: observeit.com
• Ownership type: Corporate
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: Israel 100%
• Latest funding: $225.0M, November 2019
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: observeit

ObserveIT, now operating under the name Proofpoint, is a cybersecurity firm based in Boston, Massachusetts. Founded in 2006, the company specializes in protecting organizations from human-targeted cyber threats. Their offerings include a range of software solutions focused on email security, data loss prevention, and insider threat management. Proofpoint's approach is centered on understanding user behavior to mitigate risks associated with cyber attacks. The company has received significant funding, totaling $225 million as of November 2019, which underscores its growth and relevance in the cybersecurity industry. Proofpoint serves a variety of sectors, including healthcare and government, providing essential tools to help organizations manage and secure their sensitive data.

13. Onapsis

• Website: onapsis.com
• Ownership type: Private Equity
• Headquarters: Boston, Massachusetts, United States (USA)
• Employee distribution: Romania 30%, United States (USA) 30%, Germany 18%, Other 23%
• Latest funding: Series D, $55.0M, October 2020
• Founded year: 2009
• Headcount: 201-500
• LinkedIn: onapsis

Onapsis, founded in 2009 and based in Boston, Massachusetts, is a cybersecurity company that focuses on safeguarding SAP and Oracle applications. With a workforce of approximately 325 employees, Onapsis offers a range of services including vulnerability management, incident response, and compliance solutions tailored for various industries such as financial services and healthcare. The company has received significant funding, totaling $55 million in its Series D round in October 2020. Onapsis is recognized for its expertise in application security and has established a strong presence in the cybersecurity field, particularly through its Onapsis Research Labs, which provides valuable threat intelligence. Their solutions are designed to help organizations secure their critical applications and maintain compliance, making them a key player in the cybersecurity landscape.

14. Thrive

• Website: thrivenetworks.com
• Ownership type: Private
• Headquarters: Foxborough, Massachusetts, United States (USA)
• Founded year: 2000
• Headcount: 201-500
• LinkedIn: thrive-networks

Thrive, based in Foxborough, Massachusetts, is an IT service provider founded in 2000. The company has grown to employ around 218 individuals and focuses on cybersecurity, cloud services, and managed IT solutions. Thrive serves a variety of industries, including financial services and healthcare, where data security is paramount. Their offerings include managed detection and response, autonomous penetration testing, and incident response, showcasing their expertise in safeguarding IT infrastructures. Thrive operates through a model that integrates consulting and managed services, allowing them to tackle complex IT challenges effectively. They have built a reputation for enhancing clients' IT performance and security, making them a notable player in the cybersecurity sector.

15. Technical Support International (TSI)

• Website: tsisupport.com
• Ownership type: Corporate
• Headquarters: Foxborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 88%, India 6%, Egypt 6%
• Latest funding: July 2021
• Founded year: 1989
• Headcount: 11-50
• LinkedIn: technical-support-international

Technical Support International (TSI), founded in 1989 and based in Foxborough, Massachusetts, is a corporate entity that specializes in IT support, cybersecurity, and compliance services. With a workforce of 11-50 employees, TSI caters primarily to small and medium-sized businesses across various sectors. Their service portfolio includes managed IT services, cybersecurity assessments, and compliance support, which are crucial for organizations navigating today's complex digital environment. TSI emphasizes the importance of aligning IT strategies with business objectives, ensuring that their clients not only receive technical support but also strategic guidance. Their cybersecurity services cover a wide range of needs, including network security monitoring, vulnerability management, and penetration testing, showcasing their commitment to safeguarding client data and infrastructure. TSI has built a reputation for reliability and expertise, particularly in assisting organizations with compliance mandates such as HIPAA and PCI. They have not reported any funding, indicating a self-sustained operational model.

16. StopAHack.com

• Website: stopahack.com
• Ownership type: Private
• Headquarters: Marlborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2021
• Headcount: 11-50
• LinkedIn: stopahack-com-limited-liability-company

StopAHack.com is a cybersecurity consulting company based in Marlborough, Massachusetts, founded in 2021. As a veteran-owned business, it prides itself on delivering advanced cybersecurity solutions tailored to the needs of both businesses and government entities. The company offers a range of services, including AI cybersecurity integration, application security, cloud security, and threat hunting. With a team of security-cleared professionals, StopAHack.com emphasizes customer satisfaction and high-quality service delivery. They have established partnerships with leading vendors, allowing them to provide comprehensive cybersecurity solutions. Their expertise is recognized across various sectors, including Fortune 500 companies and local governments, showcasing their capability to address complex cybersecurity challenges. StopAHack.com operates with a commitment to proactive risk management and rapid response to cyber threats, ensuring that their clients are well-protected against evolving cyber risks.

17. Network General

• Website: networkgeneral.com
• Ownership type: Corporate
• Headquarters: Westford, Massachusetts, United States (USA)
• Employee distribution: United Kingdom (UK) 100%
• Latest funding: $205.0M, September 2007
• Founded year: 1984
• Headcount: 501-1000
• LinkedIn: network-general

Network General, known as NETSCOUT, is a technology firm based in Westford, Massachusetts, founded in 1984. The company specializes in network monitoring and cybersecurity solutions, providing a range of products designed to enhance performance and security for enterprises and service providers. Their offerings include DDoS protection, application performance management, and advanced network security solutions. NETSCOUT serves various industries, including telecommunications and financial services, and has established partnerships with major technology firms like AWS and Palo Alto Networks. The company has received significant funding, amounting to $205 million, which indicates investor confidence in its growth and innovation potential. NETSCOUT's commitment to addressing the complexities of modern network environments positions it as a relevant player in the cybersecurity landscape.

18. VulnCheck

• Website: vulncheck.com
• Ownership type: Venture Capital
• Headquarters: Lexington, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 90%, United Kingdom (UK) 10%
• Latest funding: Series A, $12.0M, March 2025
• Founded year: 2021
• Headcount: 11-50
• LinkedIn: vulncheck

VulnCheck, founded in 2021 and based in Lexington, Massachusetts, is a cybersecurity firm specializing in vulnerability and exploit intelligence services. The company aims to assist businesses and organizations in enhancing their cybersecurity posture against evolving threats. VulnCheck's platform provides tools that enable clients to prioritize vulnerabilities and respond effectively to potential exploits. With a workforce of around 29 employees, the company has garnered attention for its innovative approach to vulnerability management. Recently, VulnCheck secured $12 million in Series A funding, indicating strong investor confidence in its mission and capabilities. The company actively contributes to the cybersecurity community through its blog and advisories, sharing insights on vulnerabilities and emerging threats. Their focus on providing actionable intelligence positions them as a valuable player in the cybersecurity sector.

19. Security Innovation

• Website: securityinnovation.com
• Ownership type: Corporate
• Headquarters: Wilmington, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 73%, India 21%, Other 6%
• Latest funding: July 2024
• Founded year: 2002
• Headcount: 51-200
• LinkedIn: security-innovation

Security Innovation, founded in 2002 and based in Wilmington, Massachusetts, is a cybersecurity consulting firm that specializes in application security and software penetration testing. With a workforce of around 200 employees, the company has built a strong reputation for helping organizations secure their software applications and mitigate risks associated with vulnerabilities. Their client base includes notable Fortune 100 companies, reflecting their capability to handle complex security challenges. Security Innovation offers a range of services, including secure software development consulting, risk assessments, and training, all aimed at enhancing the security posture of their clients. They have also pioneered methodologies in the field, such as the first public methodology for software security, and have been recognized multiple times in industry reports, including Gartner's Magic Quadrant. Their commitment to continuous improvement and innovation in application security makes them a significant player in the cybersecurity industry.

Network Security Insights: Key Companies in Massachusetts

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