Cybersecurity startups in San Francisco

Matthew Prince, Michelle Zatlyn & Lee Holloway

Founded 2009; global CDN, edge network, DDoS/security and developer platform (Workers). Public since 2019; a foundational internet-infrastructure and security company and a major hub for edge-compute develop...

George Kurtz & Dmitri Alperovitch

Founded 2011; cloud-native endpoint protection and the Falcon XDR/threat-intel platform. Public since 2019 and one of the largest pure-play cybersecurity companies (~$100B+ market cap). Recovered strongly af...

Todd McKinnon & Frederic Kerrest

Founded 2009; the leading independent identity and access management (IAM/IdP) platform, public since 2017. Acquired Auth0 (2021) to own developer identity as well. Core infrastructure for enterprise SSO and...

Nir Zuk

Founded 2005; the largest standalone cybersecurity company by revenue, spanning next-gen firewalls, Prisma cloud security and Cortex SecOps. Public since 2012; a serial acquirer driving the 'platformization'...

Bipul Sinha, Arvind Jain, Soham Mazumdar & Arvind Nithrakashyap 🇮🇳

Founded 2014; cloud data-management and cyber-resilience / data-security platform (backup, recovery, ransomware protection). IPO'd on the NYSE in Apr 2024 at ~$5.6B, raising $752M. Predominantly Indian-origi...

Tomer Weingarten & Almog Cohen

Founded 2013; AI-driven autonomous endpoint/XDR security platform (Singularity) and a direct CrowdStrike competitor. IPO'd 2021 in what was then the largest cybersecurity IPO. Expanding into AI-SIEM and clou...

Jay Chaudhry 🇮🇳

Founded 2007; the zero-trust cloud-security / SASE leader (Zero Trust Exchange) that pioneered securing users directly to apps rather than via the network perimeter. Public since 2018. Founder-CEO Jay Chaudh...

Evan Reiser & Sanjay Jeyakumar 🇮🇳

Founded 2018; AI-native email/human-behavior security that models normal behavior to block socially-engineered attacks. Raised a $250M Series D in Aug 2024 at a $5.1B valuation; crossed $200M ARR with 100% Y...

Mohit Aron 🇮🇳

Founded 2013; AI-powered data security and management (backup, recovery, threat detection). Merged with Veritas' data-protection business in Dec 2024, creating a ~$7B, 12,000+ customer leader in data protect...

active cyber insurance

Founded by Joshua Motta and John Hering. Combines cyber insurance with proactive security monitoring and incident response, bundling coverage with digital-risk management for businesses. Has raised roughly $...

identity verification infrastructure

Founded 2018 in San Francisco. Configurable identity-verification and fraud/KYC infrastructure now positioning as the 'verified identity layer' for an agentic-AI world. Raised a $200M Series D in 2025 (led b...

automated security & compliance

Founded 2018 by Christina Cacioppo (also a notable woman founder). Automates security compliance (SOC 2, ISO 27001, HIPAA, GDPR) and trust management for thousands of companies. Raised large 2024–2025 rounds...