What they do:
Encrypted AI with verifiable privacy
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HQ: San Francisco, CA, United States
Top Cybersecurity Startups
This list has 228 startups and was last updated on Oct 15, 2026. 57 of them are hiring right now. Biggest hubs: San Francisco (125), New York (24), and Tel Aviv (6). Largest teams: Vanta, Veriff, and TRM Labs. Latest round: Harmonic Security raised $50M (Oct 14, 2026).
Survival statistics →173 open roles →
228 startupsPage 4 of 7
What they do:
Hosting platform for software you can't afford to have hacked
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HQ: George Town, Cayman Islands
What they do:
A live watermark inside AI voice that survives phone calls
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HQ: San Francisco, CA, United States
What they do:
Employee security done for you.
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What they do:
Frontier AI to stop fraud, abuse, and financial crimes.
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HQ: San Francisco, CA, United States
What they do:
The authentication framework for TypeScript
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HQ: San Francisco, CA, United States
What they do:
Autonomous offensive security agents. The best defense is offense
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HQ: San Francisco, CA, United States
What they do:
Autonomous AI defense system for cyber attack
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HQ: San Francisco, CA, United States
What they do:
AI cybersecurity for financial institutions' digital assets
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What they do:
Least cost routing system to reduce 70%+ token spend
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HQ: San Francisco, CA, United States
What they do:
Easiest way to set up Zero Trust Access for your team
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HQ: San Francisco, CA, United States
What they do:
Zero-Knowledge security without seed phrases or backup codes
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HQ: Denver, CO, United States
What they do:
Detect every data leak into third-party GenAI tools
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HQ: San Francisco, CA, United States
What they do:
AI to increase payment acceptance and reduce fraud for businesses
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HQ: Singapore
What they do:
Risotto auto-solves IT support requests using AI
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HQ: San Francisco, CA, United States
What they do:
AI infrastructure for biosecurity
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HQ: New York, NY, United States
What they do:
Continuous AI pentesting that finds and fixes vulnerabilities
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HQ: San Francisco, CA, United States
What they do:
Protect, monitor and defend your Internet presence
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HQ: New York, NY, United States
What they do:
AI for Corporate Security Cameras
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HQ: San Francisco, CA, United States
What they do:
Frontier AI Defenses for Social Engineering Attacks
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HQ: San Francisco, CA, United States
What they do:
Autonomous Runtime Security
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What they do:
Internal industrial company data for frontier labs
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HQ: San Francisco, CA, United States
What they do:
See and control what your agents actually do
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HQ: San Francisco, CA, United States
What they do:
Cloud Native SIEM (alternative to Splunk/Elastic)
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HQ: Seattle, WA, United States
What they do:
Agents that handle security work
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HQ: New York, NY, United States
What they do:
Security for AI-native developers
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HQ: San Francisco, CA, United States
What they do:
ai-native security engineering for mission critical codebases
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HQ: San Francisco, CA, United States
What they do:
The AI Security Engineer to Find and Fix Vulnerabilities
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HQ: London, United Kingdom
What they do:
Visibility and Controls for Browser Agents
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HQ: San Francisco, CA, United States
What they do:
Privileged Access Management for AI Agents
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HQ: New York, NY, United States
What they do:
The sensitive data redaction layer for AI
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HQ: San Francisco, CA, United States
What they do:
AI Agents for Platform Engineering
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HQ: San Francisco, CA, United States
What they do:
The control plane for AI agents.
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HQ: San Francisco, CA, United States
What they do:
Real time intelligence for law enforcement & security teams.
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HQ: San Francisco, CA, United States
What they do:
Security for agents that self-improves
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HQ: San Francisco, CA, United States
What they do:
Your personal context, securely portable across every AI app.
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HQ: San Francisco, CA, United States