California is a hub for information security, focusing on protecting digital assets from cyber threats. With advances in technology, the industry has necessitated innovative solutions to tackle challenges like data breaches and ransomware attacks. Companies in this sector range from established firms to startups, specializing in areas like cloud security, threat detection, and risk assessment. As cybersecurity regulations tighten globally, there is an increasing emphasis on compliance and proactive risk management, driving growth and investment in this vital industry. Collaborative efforts among companies and partnerships with tech firms are likely to shape the future of cybersecurity solutions.

This list highlights 20 prominent information security companies based in California. Ranging in size from small teams to large organizations, these firms have been founded between 1987 and 2021, demonstrating a mix of both legacy expertise and fresh perspectives in the cybersecurity field. Specializations include email protection, network security, and AI-driven threat detection, addressing the evolving security landscape. Headquartered in tech-centric locations like San Francisco, Campbell, and San Jose, these companies serve clients across multiple industries, showcasing California’s vital role in the information security sector.

Read on to discover the top information security companies in California.

Top 20 Information Security Companies in California

1. Barracuda

• Website: barracuda.com
• Ownership type: Private Equity
• Headquarters: Campbell, California, United States (USA)
• Employee distribution: United States (USA) 47%, India 21%, United Kingdom (UK) 10%, Other 23%
• Latest funding: April 2022
• Founded year: 1999
• Headcount: 1001-5000
• LinkedIn: barracuda-networks

Barracuda Networks, Inc., founded in 1999 and based in Campbell, California, is a cybersecurity firm that specializes in protecting businesses from a variety of cyber threats. With a workforce of over 2,100 employees, Barracuda provides solutions that include email protection, data protection, network security, and application security. Their products are designed to secure digital assets and ensure compliance with industry regulations. Barracuda's cybersecurity platform is built to address multiple threat vectors, offering services like Managed XDR, which provides 24/7 managed security. The company serves a wide range of industries, including healthcare, education, and financial services, demonstrating its adaptability to different market needs. Barracuda's commitment to innovation is evident in its continuous development of tools and services that help organizations mitigate risks associated with ransomware, phishing, and other cyber threats.

2. SonicWall

• Website: sonicwall.com
• Ownership type: Corporate
• Headquarters: Milpitas, California, United States (USA)
• Employee distribution: India 40%, United States (USA) 30%, China 7%, Other 22%
• Latest funding: June 2016
• Founded year: 1991
• Headcount: 1001-5000
• LinkedIn: sonicwall

SonicWall, headquartered in Milpitas, California, is a cybersecurity company that has been operational since 1991. The firm offers a range of products and services aimed at enhancing network security for businesses and organizations. Their portfolio includes advanced firewalls, secure VPN solutions, and cloud security offerings, all designed to protect against evolving cyber threats. SonicWall serves a global clientele, with a significant portion of its workforce based in India, the United States, and other countries. The company has not reported any recent funding, indicating a stable operational model that relies on its established market presence and customer base.

3. Vectra AI

• Website: vectra.ai
• Ownership type: Private Equity
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: United States (USA) 50%, Ireland 18%, Germany 4%, Other 28%
• Latest funding: Series E-K, $130.0M, April 2021
• Founded year: 2011
• Headcount: 501-1000
• LinkedIn: vectra_ai

Vectra AI, Inc., founded in 2011 and based in San Jose, California, is a cybersecurity firm that specializes in AI-driven solutions for detecting, investigating, and responding to hybrid cyber threats. The company operates on a global scale, providing advanced security measures to a range of industries, including banking, healthcare, and government. Vectra AI's platform integrates various detection capabilities, such as network detection and response (NDR) and identity threat detection and response (ITDR), to enhance the security posture of its clients. The firm has garnered attention for its innovative technology, which leverages artificial intelligence to analyze real-time data and identify potential vulnerabilities. Vectra AI has also secured substantial funding, with a recent Series E-K round raising $130 million in April 2021, reflecting strong investor interest and support for its mission to combat sophisticated cyber threats.

4. RiskIQ

• Website: riskiq.com
• Ownership type: Corporate
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 62%, Spain 19%, Argentina 9%, Other 9%
• Latest funding: $500.0M, July 2021
• Founded year: 2009
• Headcount: 201-500
• LinkedIn: riskiq_2

RiskIQ, founded in 2009 and based in San Francisco, California, is a cybersecurity firm that specializes in digital threat management. The company provides solutions that help organizations identify and mitigate risks associated with their digital presence. RiskIQ's platform offers insights into the attack surface, enabling businesses to understand their vulnerabilities and respond effectively to potential threats. With a workforce of around 201-500 employees, RiskIQ has established itself as a significant player in the cybersecurity industry. The company has also attracted substantial investment, with a reported funding amount of $500 million as of July 2021, which underscores its growth and relevance in the market.

5. Aujas Cybersecurity

• Website: aujas.com
• Ownership type: Corporate
• Headquarters: Cupertino, California, United States (USA)
• Employee distribution: India 90%, Saudi Arabia 6%, United States (USA) 3%, Other 1%
• Latest funding: March 2019
• Founded year: 2008
• Headcount: 1001-5000
• LinkedIn: aujas-networks-pvt-ltd

Aujas Cybersecurity, based in Cupertino, California, is a cybersecurity firm that specializes in delivering comprehensive security solutions tailored to the needs of businesses and organizations. Established in 2008, Aujas has built a reputation for its expertise in areas such as Identity and Access Management, Managed Detection and Response, and Cybersecurity Risk Advisory. The company aims to assist clients in mitigating risks and ensuring compliance with various regulations. With a workforce of over 1,000 employees, a significant portion of whom are based in India, Aujas serves clients across multiple industries in regions including the United States, South Asia, and the Middle East. Their service offerings include advanced security assessments, threat simulations, and cloud security solutions, reflecting their commitment to addressing the evolving challenges in cybersecurity. Aujas has successfully completed numerous projects, demonstrating their capability to manage complex security needs for a wide array of clients.

6. Exabeam

• Website: exabeam.com
• Ownership type: Venture Capital
• Headquarters: Foster City, California, United States (USA)
• Employee distribution: United States (USA) 56%, India 18%, United Arab Emirates 6%, Other 20%
• Latest funding: $1.0M, December 2021
• Founded year: 2003
• Headcount: 501-1000
• LinkedIn: exabeam

Exabeam, founded in 2003 and based in Foster City, California, is a cybersecurity company that specializes in threat detection, investigation, and response solutions. The company offers an AI-driven Security Operations Platform that assists organizations in enhancing their security operations. Exabeam's platform is designed to address the complexities of modern cybersecurity challenges, providing tools for Security Information and Event Management (SIEM), User and Entity Behavior Analytics (UEBA), and compliance management. With a workforce of approximately 943 employees, Exabeam has a global presence, with significant operations in the United States, India, and the United Arab Emirates. The company has received funding, with its last reported amount being $1 million in December 2021. Exabeam's solutions are utilized across various sectors, including financial services and healthcare, demonstrating its capability to cater to industry-specific security requirements. Their commitment to innovation is reflected in their continuous updates and enhancements to their platform, ensuring they remain competitive in the fast-evolving cybersecurity landscape.

7. Coalition, Inc.

• Website: coalitioninc.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 79%, Canada 9%, United Kingdom (UK) 5%, Other 7%
• Latest funding: $30.0M, March 2025
• Founded year: 2017
• Headcount: 501-1000
• LinkedIn: coalitioninc

Coalition, Inc., founded in 2017 and based in San Francisco, California, operates at the intersection of insurance and cybersecurity. The company specializes in providing Active Insurance, a novel insurance product designed to protect organizations from various cyber risks, including ransomware and email compromise. Coalition's offerings extend beyond traditional insurance; they include advanced cybersecurity tools and services such as Managed Detection & Response (MDR) and Coalition Incident Response (CIR). These services are aimed at helping businesses not only recover from incidents but also proactively prevent them. With a workforce of approximately 744 employees and a significant presence in the U.S., Canada, the U.K., and Australia, Coalition has established itself as a notable player in the cybersecurity sector. The company has also secured substantial funding, with a reported $30 million in its latest round, indicating strong investor confidence in its business model and growth potential.

8. CyberProof

• Website: cyberproof.com
• Ownership type: Corporate
• Headquarters: Aliso Viejo, California, United States (USA)
• Employee distribution: India 63%, Israel 14%, Spain 13%, Other 11%
• Latest funding: January 2018
• Founded year: 2017
• Headcount: 501-1000
• LinkedIn: cyberproof-inc.

CyberProof, founded in 2017 and based in Aliso Viejo, California, is a cybersecurity firm that specializes in a range of services designed to protect organizations from cyber threats. With a workforce of around 416 employees, the company has a significant presence in countries like India, Israel, and Spain. CyberProof provides Managed Detection & Response, threat intelligence, and penetration testing, catering to clients across various sectors, including Automotive, Banking, Financial Services, and Healthcare. Their approach combines expert consulting with advanced security solutions, helping businesses manage risks effectively. CyberProof has also been recognized for its innovative use of AI in security operations, further solidifying its position in the industry. The company operates without reported funding, indicating a self-sustaining business model that focuses on delivering value to its clients.

9. OpenDNS

• Website: umbrella.cisco.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Founded year: 2006
• Headcount: 501-1000
• LinkedIn: opendns

OpenDNS, now branded as Cisco Umbrella, is a cybersecurity firm based in San Francisco, California. Founded in 2006, the company specializes in cloud-delivered security solutions designed to protect organizations from a variety of cyber threats. Their offerings include DNS-layer security, secure web gateways, and cloud access security, which are essential for safeguarding sensitive data and ensuring safe internet access. OpenDNS serves a broad spectrum of industries, including government, healthcare, and education, demonstrating its capability to cater to different security requirements. The company operates on a subscription model, allowing for scalable security solutions that can adapt to the evolving needs of its clients. With a strong emphasis on threat intelligence and proactive security measures, OpenDNS plays a crucial role in helping organizations navigate the complexities of modern cybersecurity challenges.

10. Acalvio Technologies

• Website: acalvio.com
• Ownership type: Venture Capital
• Headquarters: Santa Clara, California, United States (USA)
• Employee distribution: India 54%, United States (USA) 37%, Germany 2%, Other 7%
• Latest funding: Series D, $17.4M, July 2022
• Founded year: 2015
• Headcount: 51-200
• LinkedIn: acalvio-technologies

Acalvio Technologies, founded in 2015 and based in Santa Clara, California, is a cybersecurity firm that specializes in advanced threat detection and identity protection solutions. The company serves a range of clients, from midsize businesses to Fortune 500 companies, as well as government agencies. Acalvio's product offerings include the Acalvio Active Defense Platform and ShadowPlex solutions, which leverage cyber deception technology to enhance security measures. Their approach focuses on early detection of cyber threats, identity threat detection and response, and protection of operational technology environments. Acalvio has received significant venture capital funding, with their last round totaling $17.4 million in July 2022, which underscores their growth potential and commitment to innovation in the cybersecurity field.

11. Black Hat

• Website: blackhat.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 83%, Australia 8%, Pakistan 8%
• Founded year: 1997
• Headcount: 11-50
• LinkedIn: black-hat

Black Hat, established in 1997 and based in San Francisco, California, is a prominent cybersecurity training provider. The company specializes in offering a range of educational resources, including webinars, training sessions, and large-scale events that focus on the latest trends and developments in information security. Black Hat serves a clientele that includes cybersecurity professionals and organizations aiming to bolster their security protocols. Their events, such as Black Hat USA and Black Hat Europe, attract experts and practitioners from around the globe, fostering a collaborative environment for knowledge sharing. As part of the Informa Tech Division of Informa PLC, Black Hat continues to play a crucial role in shaping the cybersecurity education landscape, ensuring that professionals are equipped with the skills and insights necessary to navigate the evolving threat landscape.

12. McAfee

• Website: mcafee.com
• Ownership type: Private Equity
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: India 50%, United States (USA) 23%, Canada 7%, Other 20%
• Latest funding: March 2022
• Founded year: 1987
• Headcount: 1001-5000
• LinkedIn: mcafee

McAfee Corp. is a computer security software company based in San Jose, California, founded in 1987. The company specializes in protecting individuals and families from various cyber threats through a wide array of products. Their offerings include antivirus software, identity protection services, and privacy tools, all designed to help users secure their personal information and devices. McAfee operates primarily on a subscription basis, providing continuous security services that adapt to the changing landscape of cyber threats. The company has a significant workforce, with a notable presence in India and the United States, and has been recognized for its efforts in enhancing online safety for consumers. McAfee's commitment to innovation is evident in its integration of AI technology to bolster its security measures, ensuring that users are protected against the latest threats.

13. Zingbox Inc. (A Palo Alto Networks Company)

• Website: zingbox.com
• Ownership type: Corporate
• Headquarters: Mountain View, California, United States (USA)
• Latest funding: $75.0M, September 2019
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: zingbox-inc.

Zingbox Inc., a subsidiary of Palo Alto Networks, was founded in 2014 and is headquartered in Mountain View, California. The company specializes in cybersecurity solutions tailored for the Internet of Things (IoT). Zingbox's primary focus is on providing security for connected devices, which are increasingly prevalent in both enterprise and consumer environments. Their technology employs machine learning and AI to enhance the security posture of IoT devices, ensuring that organizations can manage risks associated with these devices effectively. Zingbox's solutions are designed to implement Zero Trust security policies, which help prevent unauthorized access and lateral movement of threats within networks. The company has received significant funding, amounting to $75 million as of September 2019, which underscores investor confidence in its mission and technology.

14. Skyhigh Security

• Website: skyhighsecurity.com
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: India 60%, United States (USA) 15%, Germany 6%, Other 20%
• Founded year: 2021
• Headcount: 501-1000
• LinkedIn: skyhighsecurity

Skyhigh Security, based in San Jose, California, is a cybersecurity firm that specializes in data protection solutions tailored for cloud environments. Founded in 2021, the company has quickly made a name for itself by offering a suite of services designed to help businesses secure their data and manage threats effectively. Their product lineup includes Security Service Edge, Cloud Access Security Broker, Secure Web Gateway, and more, all aimed at enhancing security for enterprise-level clients. Skyhigh Security serves a broad clientele, including over 3,000 customers, with a notable presence among global banks and Fortune 500 companies. The company emphasizes advanced data loss prevention and threat detection, leveraging AI to bolster its security offerings. Their commitment to innovation is underscored by their recognition in the 2024 Gartner Magic Quadrant, where they were named a Visionary for their completeness of vision and ability to execute. This positioning reflects their active role in shaping the future of cybersecurity.

15. eSecurity Solutions

• Website: esecuritysolutions.com
• Ownership type: Private
• Headquarters: Irvine, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn: esecuritytogo

eSecurity Solutions, based in Irvine, California, is a cybersecurity firm that has been operational since 2003. With a team of 18 employees, the company focuses on providing tailored cybersecurity solutions to businesses across various sectors. Their service offerings include Governance, Risk, and Compliance (GRC) services, managed security services, and a range of cybersecurity products from well-known vendors such as CrowdStrike, Fortinet, and Palo Alto. eSecurity Solutions aims to assist organizations in enhancing their cybersecurity posture while ensuring compliance with industry regulations. Their expertise spans critical areas such as cybersecurity audits, incident response planning, and penetration testing. The company has built a reputation for delivering customized security solutions that align with clients' specific needs and budgetary constraints, making them a relevant player in the cybersecurity industry.

16. Varutra Consulting

• Website: varutra.com
• Ownership type: Private
• Headquarters: Mission Viejo, California, United States (USA)
• Employee distribution: India 100%
• Founded year: 2012
• Headcount: 201-500
• LinkedIn: varutra-consulting

Varutra Consulting, founded in 2012 and based in Mission Viejo, California, is a cybersecurity consulting firm that provides a wide array of security services. The company focuses on cloud security, mobile security, application security, and network security, catering primarily to businesses and organizations looking to enhance their cybersecurity posture. Varutra emphasizes customized solutions and training to help clients navigate the complex and ever-changing landscape of cyber threats. With a workforce of around 124 employees, the company operates primarily out of India, with additional offices in the United States. Varutra has made significant strides in the industry, being recognized in Gartner's market guides for its Vulnerability Assessment and Penetration Testing (VAPT) and Application Security services. The firm has also been awarded multiple accolades, including the Cybersecurity Excellence Awards in 2021 for being one of the fastest-growing cybersecurity companies in North America. Varutra is ISO 27001 certified and is a CERT-In empaneled organization, further solidifying its credibility in the cybersecurity domain.

17. Vera Security

• Website: vera.com
• Ownership type: Corporate
• Headquarters: Palo Alto, California, United States (USA)
• Employee distribution: United States (USA) 50%, India 50%
• Latest funding: December 2020
• Founded year: 2014
• Headcount: 501-1000
• LinkedIn: veradocs

Vera Security, now operating under the name Digital Guardian, is a cybersecurity firm based in Palo Alto, California. Founded in 2014, the company has carved out a niche in the cybersecurity industry by focusing on data protection and loss prevention. Digital Guardian offers a suite of services that includes Endpoint DLP, Secure Collaboration, and Managed Security Services. Their solutions are designed to help organizations secure sensitive data and meet compliance requirements across various sectors, including healthcare, finance, and technology. The company has a global presence, with a workforce split between the United States and India, and has been involved in numerous projects that demonstrate their capability in managing data security challenges. Digital Guardian's commitment to protecting critical data and intellectual property makes them a significant player in the cybersecurity field.

18. Cmt

• Website: dataendure.com
• Ownership type: Private
• Headquarters: Santa Clara, California, United States (USA)
• Founded year: 1984
• Headcount: 51-200
• LinkedIn: cmt_2

Cmt, known as DataEndure, is a cybersecurity firm based in Santa Clara, California, founded in 1984. With a workforce of approximately 72 employees, the company has carved out a niche in managed security services, compliance, and data resilience. DataEndure provides a comprehensive suite of solutions, including cloud security, endpoint protection, and risk management assessments. Their clientele primarily consists of businesses and organizations that require stringent cybersecurity measures to safeguard sensitive data and comply with regulatory standards. Over the years, DataEndure has established itself as a trusted partner for organizations seeking to enhance their security posture and ensure operational resilience against cyber threats. Their extensive experience in the industry positions them as a knowledgeable player in the cybersecurity field, capable of addressing the evolving challenges faced by modern enterprises.

19. Tevora

• Website: tevora.com
• Ownership type: Private
• Headquarters: Irvine, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2003
• Headcount: 201-500
• LinkedIn: tevora-business-solutions

Tevora, founded in 2003 and based in Irvine, California, is a cybersecurity consulting firm that specializes in providing comprehensive security solutions tailored to various industries. With a workforce of around 202 employees, Tevora focuses on sectors such as healthcare, financial services, and government, offering services that include compliance, threat management, and risk management. Their expertise extends to areas like incident response, cloud security, and business continuity planning. Tevora has built a reputation for partnering with organizations to enhance their security posture and ensure regulatory compliance. The firm operates entirely within the United States and has not reported any external funding, indicating a self-sustained growth model. Their commitment to delivering tailored security solutions positions them as a significant player in the cybersecurity consulting space.

20. Dataway

• Website: dataway.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: Ireland 66%, China 17%, Venezuela 17%
• Founded year: 1993
• Headcount: 11-50
• LinkedIn: dataway

Dataway, founded in 1993 and based in San Francisco, California, is a cybersecurity firm that specializes in enterprise and cloud-based network security. With a dedicated team of around 40 employees, Dataway has carved out a niche in providing managed and professional services tailored to the unique needs of organizations, particularly in high-risk sectors such as healthcare and finance. Their offerings include security monitoring, compliance strategy, data protection, and incident response planning. Dataway prides itself on its ability to adapt to the ever-changing cybersecurity landscape, ensuring that their clients can maintain trust and security in their operations. The company has built a reputation for engineering excellence and long-term client partnerships, often working with clients for over a decade. Their expertise extends to securing remote work environments and implementing robust security strategies that align with regulatory requirements. Dataway's commitment to ongoing support and strategic planning makes them a valuable partner for organizations looking to enhance their cybersecurity posture.

Information Security Insights: Key Companies in California

Company	Headquarter	Size	Founded	Ownership
Barracuda	Campbell, California, United States (USA)	1001-5000	1999	Private Equity
SonicWall	Milpitas, California, United States (USA)	1001-5000	1991	Corporate
Vectra AI	San Jose, California, United States (USA)	501-1000	2011	Private Equity
RiskIQ	San Francisco, California, United States (USA)	201-500	2009	Corporate
Aujas Cybersecurity	Cupertino, California, United States (USA)	1001-5000	2008	Corporate
Exabeam	Foster City, California, United States (USA)	501-1000	2003	Venture Capital
Coalition, Inc.	San Francisco, California, United States (USA)	501-1000	2017	Venture Capital
CyberProof	Aliso Viejo, California, United States (USA)	501-1000	2017	Corporate
OpenDNS	San Francisco, California, United States (USA)	501-1000	2006	Private
Acalvio Technologies	Santa Clara, California, United States (USA)	51-200	2015	Venture Capital
Black Hat	San Francisco, California, United States (USA)	11-50	1997	Private
McAfee	San Jose, California, United States (USA)	1001-5000	1987	Private Equity
Zingbox Inc. (A Palo Alto Networks Company)	Mountain View, California, United States (USA)	11-50	2014	Corporate
Skyhigh Security	San Jose, California, United States (USA)	501-1000	2021	Private
eSecurity Solutions	Irvine, California, United States (USA)	11-50	2003	Private
Varutra Consulting	Mission Viejo, California, United States (USA)	201-500	2012	Private
Vera Security	Palo Alto, California, United States (USA)	501-1000	2014	Corporate
Cmt	Santa Clara, California, United States (USA)	51-200	1984	Private
Tevora	Irvine, California, United States (USA)	201-500	2003	Private
Dataway	San Francisco, California, United States (USA)	11-50	1993	Private

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