Boston, known for its acclaimed universities and leadership in the life sciences industry, is also home to some of the most well-known names in cybersecurity.
According to McKinsey & Company, the city’s cybersecurity market brought in $4.5 billion in venture capital funding, plus accounted for nine percent of all cybersecurity venture capital funding in the United States between 2020 and 2025. The Boston-Cambridge-Newton area also accounted for over 90 percent of Massachusetts’s total cybersecurity-related job postings in 2025.
Check out the cybersecurity companies that make Boston and the Greater Boston area a premier U.S. cybersecurity hub.
Top Cybersecurity Companies in Boston
- CyberArk
- Cybereason
- Mimecast
- Rapid7
- Snyk
- Zscaler
Top Cybersecurity Companies in Boston
Headquarters: Petach-Tikva, Israel
Founded: 1999
What it does: CyberArk provides an identity security platform designed to secure all human, machine and AI identities by protecting access to resources across hybrid, SaaS, and multi-cloud infrastructures. Centered on intelligent privilege controls, the platform aims to prevent unauthorized access, defense against attackers and continuously detect threats. CyberArk’s Americas headquarters is located in Newton, Massachusetts.
Headquarters: San Diego, California
Founded: 2012
What it does: Cybereason’s product brings military grade technology to businesses, leveraging cutting-edge machine learning and behavioral analytics capabilities to hunt advanced cyber threats in real time.
Headquarters: London, United Kingdom
Founded: 2003
What it does: Mimecast provides email security products and solutions to enable safer business communication processes. Beyond their email security services, Mimecast’s platform also provides data protection, awareness training for employees, web security and threat intelligence.
Headquarters: Boston, Massachusetts
Founded: 2000
What it does: Rapid7 provides security data and analytics to thousands of companies worldwide. Its platform handles exposure management, attack surface management, vulnerability management and applications security, while also offering services like incident response, managed detection and response and penetration testing.
Headquarters: Boston, Massachusetts
Founded: 2015
What it does: Snyk has created a variety of products and platforms that help developers secure their organization’s applications and building environments with assurance, providing open source, code, container and infrastructure-as-code products that identify and fix vulnerabilities in real time. Additionally, Snyk operates a Cloud Native Application Security platform that secures all components of modern cloud native applications within a single platform.
Headquarters: San Jose, California
Founded: 2007
What it does: Through its Zero Trust Exchange Platform, Zscaler helps businesses, critical infrastructure organizations and government exchanges enhance security across users, branches, applications, data and devices. The company has established a prominent presence in Boston, and its local clients include the city government, which relies on Zscaler’s technology to secure its cloud infrastructure. Zscaler has a major regional campus based in the Seaport District that supports employees across sales, engineering and professional services.
Headquarters: Norwalk, Connecticut
Founded: 2007
What it does: Datto protects essential business data for tens of thousands of the world’s fastest growing companies. Their data protection platform delivers uninterrupted access to data on site, in transit and in the cloud.
Headquarters: Boston, Massachusetts
Founded: 2017
What it does: Aura is making the internet safer for consumers by creating all-around protection in the form of a single platform. With Aura solutions, customers can create strong passwords, detect fraud, lock their Experian credit files, and take other proactive security measures. An Aura plan can also cover up to five people, ensuring secure internet activity for the whole family.
Headquarters: New York, New York
Founded: 2010
What it does: Datadog offers cybersecurity solutions to help IT, developers, businesses and IT operations teams secure and monitor their applications. Its tools also power cloud migration, infrastructure monitoring and digital transformation. The company’s Boston office is located steps away from Post Office Square.
Headquarters: Framingham, Massachusetts
Founded: 2005
What it does: IdentityForce provides identity theft protection services for individuals, businesses and government agencies in the United States. The company offers prevention, detection, restoration, and reimbursement services for individuals and families, and hosts identity protection services for the healthcare industry.
Headquarters: Cambridge, Massachusetts
Founded: 2009
What it does: MacPaw is a software company that makes security add-on apps for Mac computers, which protect customer data across various applications. Its Moonlock Engine product division makes anti-malware technology, which is embedded into MacPaw products like CleanMyMac X, a combination antivirus and storage cleaning tool. Moonlock Engine technology scans assets like archives, mail attachments, drives, launcher apps and other areas of vulnerability to malware, neutralizing it where it discovers it. MacPaw is headquartered in Cambridge.
Headquarters: Bristol, United Kingdom
Founded: 2017
What it does: Immersive is an organizational cybersecurity firm that works with client companies to assess their readiness to respond to cyberthreats, then compares their preparation to industry standards and trains their teams in best practices to uplevel resilience to cybercrime. Its training platform provides client teams with educational content and gamified challenge-based modeling labs that allow them to explore and adjust their responses to hypothetical cyberthreat situations. The company is headquartered in Boston.
Headquarters: Boston, Massachusetts
Founded: 2005
What it does: Tufin offers an array of products that are intended to defend its client organizations’ networks against cyberattacks and automate their security policy management. The company’s solutions include SecureTrack+, which enables visibility and control for hybrid-cloud networks, and AKIPS, a scalable network monitoring tool.
