In an era where technological advancements are shaping the world, the cybersecurity industry is undeniably one of the most critical sectors. Residing in the heart of California's tech hub, numerous esteemed cybersecurity companies are shaping tomorrow's digital landscape. These corporations specialize in providing advanced security solutions, from network fortification to AI/ML based defense mechanisms, ensuring businesses stay safe from cyber threats. As we progress towards a more interconnected world, the role of these companies, offering innovative services from cloud-native development to IoT security, becomes paramount. The trend seems poised to continue escalating, reflecting the rapidly evolving threat landscape and increased emphasis on digital protection.


Top 25 cybersecurity companies in California

1. Cisco

  • Website: cisco.com
  • Headquarters: San Jose, California, United States
  • Founded: 1984
  • Headcount: 10001+
  • Latest funding type: Acquired
  • LinkedIn

Cisco is a technology company that specializes in automation, networking, and cybersecurity solutions. They offer products and services that help businesses reimagine their connections and protect themselves from cyber risks. With a focus on cloud native development, AI/ML, and observability, Cisco is at the forefront of technological innovation.


2. Fortinet

  • Website: fortinet.com
  • Headquarters: Sunnyvale, California, United States
  • Founded: 2000
  • Headcount: 10001+
  • Latest funding type: Acquired
  • LinkedIn

Fortinet is a company that offers advanced software solutions for network security. With a focus on innovation, they provide beta software for testing and feedback to improve their product. Customers can enroll in their beta program, access resources, and participate in forums to stay updated on new features and improvements.


3. Palo Alto Networks

  • Website: paloaltonetworks.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 2005
  • Headcount: 10001+
  • Latest funding type: Ipo
  • LinkedIn

Palo Alto Networks is a company that offers ML-powered NGFW capabilities as a fully-managed cloud-native service on AWS. Their services include autonomous DEM, Prisma Access, IoT security, and more.


4. Check Point Software Technologies Ltd

  • Website: checkpoint.com
  • Headquarters: San Carlos, California, United States
  • Founded: 1993
  • Headcount: 5001-10000
  • Latest funding type: Post Ipo Equity
  • LinkedIn

Check Point is a leading vendor of Cyber Security solutions, dedicated to creating innovative and advanced technologies to protect against sophisticated threats and attacks.


5. McAfee

  • Website: mcafee.com
  • Headquarters: San Jose, California, United States
  • Founded: 1987
  • Headcount: 5001-10000
  • Latest funding type: Acquired
  • LinkedIn

McAfee is a company that provides support and solutions for technology security. They offer products and services to protect individuals and businesses from cyber threats.


6. Barracuda

  • Website: barracuda.com
  • Headquarters: Campbell, California, United States
  • Founded: 1999
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

Barracuda.com provides simple and scalable security solutions with no software or hardware installation required. They offer a range of products and services for protecting against cyber threats, including phishing and impersonation protection, ransomware protection, advanced bot protection, and industrial IoT security. Their offerings are designed to help organizations safeguard their data and digital assets.


7. Imperva

  • Website: imperva.com
  • Headquarters: San Mateo, California, United States
  • Founded: 2002
  • Headcount: 1001-5000
  • Latest funding type: Series Unknown
  • LinkedIn

Imperva is a cybersecurity company that offers advanced solutions to protect organizations from data breaches, cyber attacks, and insider threats. Their comprehensive suite of products includes web application firewalls, data and file security, and API security solutions.


8. Proofpoint

  • Website: proofpoint.com
  • Headquarters: Sunnyvale, California, United States
  • Founded: 2002
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

Proofpoint is a leading provider of people-centric compliance and security solutions. They help organizations mitigate critical security and compliance risks by offering an integrated, cloud-based suite of solutions. Their focus is on protecting organizations' biggest risks and greatest assets - their people.


9. Symantec Cloud Services

SymantecCloud.com is a company that offers a range of cloud-based security solutions and services. Their products include antivirus, firewall, encryption, and data loss prevention tools. They provide comprehensive protection for businesses and individuals against cyber threats.


10. Nsfocus

  • Website: nsfocusglobal.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 2000
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

NSFOCUS is a global company that offers DDoS protection, cloud security, threat intelligence, application security, and intelligent security operation platform solutions. With a focus on preventing invasions and protecting against cyber threats, NSFOCUS provides services such as internet exposure analysis, attack threat monitoring, and vulnerability scanning. The company's offerings also include web application firewalls and comprehensive threat analysis systems.


11. Cobalt

  • Website: cobalt.io
  • Headquarters: San Francisco, California, United States
  • Founded: 2013
  • Headcount: 201-500
  • Latest funding type: Series B
  • LinkedIn

Cobalt.io is a company that offers comprehensive penetration testing services. They help organizations identify and fix vulnerabilities in their digital infrastructure, ensuring the security of their systems. With a team of skilled ethical hackers, Cobalt.io provides expert guidance and delivers actionable insights to improve cybersecurity.


12. Hillstone Networks

  • Website: hillstonenet.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 2006
  • Headcount: 1001-5000
  • Latest funding type: Ipo
  • LinkedIn

Hillstone Networks is a cybersecurity company that provides secure access to internal applications across major operating systems with diverse authentication schemes and intelligent enforcement.


13. IdenTrust, Inc.

  • Website: identrust.com
  • Headquarters: Freemont, California, United States
  • Founded: 1999
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

IdenTrust is a leading provider of digital certificates and managed PKI services (PKIaaS) for enterprise network and IoT security.


14. Array Networks

  • Website: arraynetworks.com
  • Headquarters: Milpitas, California, United States
  • Founded: 2000
  • Headcount: 201-500
  • Latest funding type: Ipo
  • LinkedIn

Array Networks is a cybersecurity company that offers advanced application delivery and secure access solutions. Their products help organizations protect against bot attacks, block zero-day threats, and provide scalable SSL and SSLi visibility. With over 5000 worldwide deployments, Array Networks is known for its best-in-class ciphers and extensive application fluency.


15. Skybox Security

  • Website: skyboxsecurity.com
  • Headquarters: San Jose, California, United States
  • Founded: 2002
  • Headcount: 201-500
  • Latest funding type: Private Equity
  • LinkedIn

Skybox Security is a cybersecurity company that provides solutions to strengthen an organization's overall security efficacy, reduce risks of cyberattacks, and optimize network and security data for comprehensive visibility and control. They offer integrations with various technology ecosystems and devices, as well as threat intelligence and vulnerability discovery services.


16. SafeAeon Inc.

  • Website: safeaeon.com
  • Headquarters: Pleasanton, California, United States
  • Founded: 2019
  • Headcount: 51-200
  • LinkedIn

SafeAeon is a managed security service provider that offers 24x7 security monitoring and detection of cyber attacks. With a team of expert professionals, they provide SOC-as-a-Service, SIEM-based monitoring, MDR, and XDR services to ensure the safety of organizations. They also offer services like vulnerability assessment, penetration testing, and multi-factor authentication. SafeAeon's mission is to redefine SOC affordability and provide industry-leading quality at competitive prices.


17. Norse Corporation

  • Website: norse-corp.com
  • Headquarters: Foster City, California, United States
  • Founded: 2010
  • Headcount: 51-200
  • Latest funding type: Series A
  • LinkedIn

Norse Corp is a company that specializes in cyber security solutions. They offer a range of services and products to protect individuals and businesses from online threats. Their easy-to-use software and tools provide real-time anti-virus protection, VPN for private internet access, and powerful backup tools. With a focus on user-friendly design and comprehensive protection, Norse Corp is a trusted name in the industry.


18. Brier & Thorn, Inc

Brier & Thorn is a cybersecurity company offering services such as Penetration Testing, Managed Security Services, Dedicated Services, and Compliance Services.


19. RSI Security

RSI Security is a leading compliance and cybersecurity provider that helps organizations manage cyber risks and protect their data. With a focus on helping clients achieve cybersecurity risk management success, RSI Security offers a wide range of services, including cloud security, incident response, penetration testing, and managed IT security services.


20. NeuraLegion

Neuralegion is a company that offers innovative cybersecurity solutions for businesses. Their cutting-edge technology helps organizations protect their digital assets from cyber threats and vulnerabilities. With their comprehensive suite of tools and services, Neuralegion empowers companies to safeguard their critical data and maintain a strong security posture.


21. Spyrus | A Route1 Cryptographic Solution

  • Website: spyrus.com
  • Headquarters: San Jose, California, United States
  • Founded: 1992
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

SPYRUS is a company that specializes in providing comprehensive security solutions. They offer a wide range of products, including NcryptNshare application, DevicePatrol tokens, and DevicePatrol server. With a focus on ensuring data protection, SPYRUS aims to meet the security needs of various businesses.


22. CyberForza

  • Website: cyberforza.com
  • Headquarters: Santa Clara, California, United States
  • Founded: 2017
  • Headcount: 51-200
  • LinkedIn

CyberForza is a membership-based cybersecurity company that offers integrated cloud AI cyber defense solutions. They provide a comprehensive suite of services including firewall, CASB, UEBA, DLP, VPN, endpoint security, and cloud monitoring.


23. BorderLAN Cyber Security

  • Website: borderlan.com
  • Headquarters: San Marcos, California, United States
  • Founded: 2007
  • Headcount: 11-50
  • LinkedIn

BorderLAN is a cybersecurity company that provides comprehensive solutions to protect businesses from cyber threats. With a focus on layered security, they offer services like 24/7 threat response, vulnerability management, and backup/disaster recovery. Their product portfolio includes web filtering, network backup, and endpoint security. BorderLAN caters to various industries, including K-12 education, healthcare, and corporate sectors. They prioritize customer security and offer services like phishing training and multi-factor authentication. Their business model revolves around managed services and outsourcing IT support. BorderLAN is dedicated to helping businesses secure their digital assets and stay protected from cybercriminals.


24. Alacrinet

  • Website: alacrinet.com
  • Headquarters: Palo Alto, California, United States
  • Founded: 2002
  • Headcount: 11-50
  • LinkedIn

Alacrinet is a managed security services provider offering a comprehensive range of cybersecurity solutions. Their expertise lies in elevating cyber security and securing every aspect of clients' environments. They deliver services such as network infrastructure management, vulnerability scanning, identity access management, and professional security consulting.


25. AccessQuint LLC

AccessQuint LLC is a cybersecurity consulting company that offers end-to-end business-centric consulting and solutions. They provide services such as security consulting, data security, cloud security, and managed security services. Their team of experienced technical consultants aims to increase security maturity and provide secure applications, compliant environments, and safer systems development. AccessQuint is dedicated to becoming a trusted IT security advisor and preferred provider of solutions and services.


Want to find more cybersecurity companies?


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