Best Cybersecurity & Digital Defense Serving Los Angeles
Local coverage for cybersecurity firms in Los Angeles is thin, so we've expanded to statewide listings in California. Showing 12 cybersecurity firms that serve Los Angeles clients.
- Verified providers
- 11 verified / 12 listed
- Last updated
- Last updated September 2026
Ranked listings
Top Cybersecurity & Digital Defense serving Los Angeles, CA
Ranked by tier and rating. Every listing is human vetted before it appears here.
How we rank
Providers are hand-vetted by our editorial team based on verified client history, domain authority, and AI footprint. Rankings within Los Angeles are then ordered by tier, verification status, rating, and review count — never by pay-to-rank.
CrowdStrike
CrowdStrike is a cybersecurity software company whose Falcon platform provides protection across endpoints, identities, cloud environments, data and security operations. George Kurtz co-founded CrowdStrike with Dmitri Alperovitch and Gregg Marston, and the company announced its launch in 2012 after CrowdStrike Holdings was incorporated in Delaware in August 2011. The Falcon platform uses a cloud-based architecture and threat telemetry to support detection, prevention, investigation and response. Current capabilities include endpoint detection and response, managed detection and response, identity protection, cloud security, threat intelligence, exposure management and next-generation security information and event management. CrowdStrike also applies artificial intelligence to security operations and has expanded its product work around protecting AI systems and agent-based software. The company completed its initial public offering in June 2019 and trades on Nasdaq under CRWD. CrowdStrike designated Austin, Texas as its principal executive office in 2021, replacing the older California location associated with earlier company records.
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OpenDNS
OpenDNS is the predecessor to Cisco Umbrella, a cloud-delivered security service centered on DNS and enterprise network protection. OpenDNS developed a cloud platform that provided threat protection and security enforcement for devices connecting to internet resources. Cisco announced plans to acquire the San Francisco-based company in June 2015 and completed the acquisition in August 2015. Cisco said the acquisition added cloud-delivered threat intelligence, visibility and enforcement capabilities to its security portfolio. The OpenDNS technology subsequently became part of Cisco's Umbrella security offering, and Cisco's current Umbrella website explicitly identifies OpenDNS as now being Umbrella. Current Umbrella capabilities include recursive DNS services, DNS-layer security, cloud security services and secure internet gateway packages. David Ulevitch is publicly documented as the founder and former CEO of OpenDNS. The original OpenDNS name therefore represents the company and technology lineage behind today's Cisco Umbrella service rather than a separate current vendor.
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West Advanced Technologies (WATI)
West Advanced Technologies, Inc., known as WATI, is a California-headquartered technology and cybersecurity company operating since 1998. The company began by providing information technology services to the County of Los Angeles and now serves state and local government agencies, technology companies and commercial enterprises. Srini Veeramasu currently serves as Chief Executive Officer. WATI's cybersecurity services include vulnerability assessment and penetration testing, red teaming, product security, managed security operations, information security, cloud security and risk and compliance work. Its public-sector practice develops, integrates, installs and supports technology for government agencies, including systems used by law enforcement and other public services. WATI also develops BEAGLE for criminal-justice data integration and Cybermindr for continuous threat-exposure analysis. The company states that it has maintained its California headquarters throughout its operating history and currently has five global locations. Published company material documents relationships with multiple California government agencies extending back more than two decades.
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Cybereason
Cybereason is a cybersecurity platform founded in 2012 by Lior Div, Yossi Naar and Yonatan Striem-Amit and acquired by LevelBlue in November 2025. Its endpoint security, XDR, threat intelligence and incident-response technology now complements LevelBlue's managed detection and response services rather than operating as a standalone company.
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Resecurity
Resecurity is a Los Angeles cybersecurity company centered on intelligence about threats that develop outside an organization's own infrastructure. Its differentiator is combining cyber threat intelligence with digital-risk, identity and fraud monitoring, allowing security teams to track adversaries, leaked data and external exposure together.
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Breadcrumb Cybersecurity
Breadcrumb Cybersecurity is a Fresno cybersecurity firm founded in 2015, specializing in penetration testing, digital forensics and incident response for Central Valley businesses.
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SentinelOne
SentinelOne is an AI-native cybersecurity company founded in 2013 by Tomer Weingarten and Almog Cohen, headquartered in Mountain View, California. The company provides the Singularity Platform for autonomous endpoint protection, cloud workload security, and identity threat detection powered by AI models that detect and respond to threats without human intervention. SentinelOne serves over 12,000 customers and reported $621 million in revenue for fiscal year 2025. The company trades on NYSE under the ticker S.
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Okta
Okta is an identity and access management company founded in 2009 by Todd McKinnon and Frederic Kerrest. The company develops identity security products for employees, customers, partners, non-human identities and AI agents. Its workforce identity capabilities include single sign-on, adaptive multi-factor authentication, device access, API access management, Universal Directory and secure partner access. Okta also provides privileged access management, identity governance, lifecycle management, identity security posture management and identity threat protection. Customer identity services are provided through Okta Customer Identity and the Auth0 platform. Okta describes its platform as neutral and extensible, allowing organizations to connect identity controls with a broad range of applications and technologies. The company has expanded its identity security work to address AI agents and other machine identities as organizations adopt new forms of automated software. Okta's own company history confirms that McKinnon and Kerrest created the company in 2009 around Identity-as-a-Service.
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Fortinet
Fortinet is a multinational cybersecurity company founded in 2000 by brothers Ken Xie and Michael Xie, headquartered in Sunnyvale, California. Fortinet develops the FortiGate next-generation firewall (the most deployed network firewall globally), FortiSASE, FortiEDR, and the Fortinet Security Fabric integrating over 50 security products. The company serves over 755,000 customers worldwide and reported $5.9 billion in revenue for fiscal year 2024. Fortinet trades on NASDAQ under the ticker FTNT.
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Zscaler
Zscaler is a cloud security company founded in 2007 by co-founder Jay Chaudhry and built around the Zero Trust Exchange. The company provides cloud-delivered security for internet access, private applications, data, endpoints, branches, IoT and operational technology. Its current platform includes Zero Trust SASE, secure internet and private access, digital experience monitoring, zero trust firewall, cloud sandbox and browser security. Zscaler also offers AI security services covering AI asset management, AI access security, AI red teaming and AI guardrails. Its security operations portfolio includes threat exposure management, unified vulnerability management, threat hunting and managed detection and response. Jay Chaudhry has served as President, CEO and Chairman since 2007. Zscaler's public investor materials identify him as a co-founder and security industry entrepreneur. The company's platform is delivered through a global cloud architecture rather than traditional on-premises security appliances.
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Palo Alto Networks
Palo Alto Networks is the world's largest cybersecurity company by market capitalisation, founded in 2005 by Nir Zuk and headquartered in Santa Clara, California. The company provides next-generation firewalls, cloud security (Prisma Cloud), SOC automation (Cortex XSIAM), and zero trust network access. Palo Alto Networks serves over 80,000 customers including 85 of the Fortune 100 and reported $8.6 billion in revenue for fiscal year 2025. The company trades on NASDAQ under the ticker PANW.
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Palo Alto Networks
Palo Alto Networks is the worlds largest cybersecurity company by revenue with $8 billion+ annually, providing the Prisma SASE platform for zero trust network access, cloud security, and AI-driven threat prevention. The company serves 80,000+ customers across 150+ countries with next-generation firewalls and security operations.
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Frequently asked
About Cybersecurity & Digital Defense serving Los Angeles
What is the top-rated Cybersecurity & Digital Defense serving Los Angeles?
CrowdStrike currently holds the #1 rank on DirJournal's Cybersecurity & Digital Defense listing for Los Angeles, California. Rankings are recalculated as providers earn verification, publish pricing tiers, and accumulate reviews. See the ranked grid above for the full top 12.
How much do cybersecurity firms typically cost in Los Angeles?
Most cybersecurity firms publish pricing tiers on their DirJournal profile. Click any provider above to see their tiers, starting rate, and typical engagement size. Where pricing isn't listed, request a quote directly through the provider's contact link.
How does DirJournal rank cybersecurity firms for Los Angeles?
Providers are hand-vetted by our editorial team, then ranked by verification status, tier, rating, and review count. Only published listings appear. Location matching for the Los Angeles page runs city-first, expanding to statewide (California) or nationwide only when local coverage is thin — this is clearly disclosed on the page when it happens.
Are these cybersecurity firms physically located in Los Angeles?
No. Because we don't yet index enough cybersecurity firms inside Los Angeles specifically, this page falls back to statewide coverage across California. Every provider listed serves Los Angeles clients but may be headquartered elsewhere in the state.
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