Cymmetria
Acquired
What they do:
Shifting the asymmetry of cyber security.
Quick facts:
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 6 of 7
Templarbit
Acquired
What they do:
Protecting applications from malicious activity
Quick facts:
HQ: San Francisco, CA, United States
Foxpass
Acquired
What they do:
Making enterprise security practices available for all companies.
Quick facts:
HQ: San Francisco, CA, United States
Tarsal
Acquired
What they do:
Data pipeline for your security data lake.
Quick facts:
HQ: New York, NY, United States
Vectrix
Acquired
What they do:
Scan your SaaS apps and instantly identify security issues
Quick facts:
HQ: San Francisco, CA, United States
Telivy
Acquired
What they do:
Automate your cyber security risk assessments
Quick facts:
HQ: San Francisco, CA, United States
Keyri
Acquired
What they do:
Secure fraud prevention and authentication platform for developers
Quick facts:
HQ: San Francisco, CA, United States
EdgeBit
Acquired
What they do:
Autofix your software dependencies
Quick facts:
HQ: San Francisco, CA, United States
Meldium
Acquired
What they do:
Simple password & identity management for teams. Acquired by LogMeIn…
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HQ: San Francisco, CA, United States
Stacksi
Acquired
What they do:
Automated Answers to Security Questionnaires
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HQ: Los Angeles, CA, United States
Cryptoseal
Acquired
What they do:
Server key management, VPN as a Service, Privacy VPN. Sold to…
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HQ: San Francisco, CA, United States
Xeol
Acquired
What they do:
Close your outdated dependency attack vector
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HQ: New York, NY, United States
CyberFend
Acquired
What they do:
Cyberfend delivers robust, real-time web and mobile security by…
Quick facts:
HQ: San Francisco, CA, United States
Appcanary
Acquired
What they do:
Appcanary tracks the dependencies you use in your apps and servers…
Quick facts:
Sphere Secure Workspace
Acquired
What they do:
Sphere Secure Workspace For a product demonstration, or for any other enquiries please contact at [email protected]
Quick facts:
HQ: London, United Kingdom
Fabric
Acquired
What they do:
Fabric is a personal location-based journal that catalogs experiences…
Quick facts:
HQ: San Francisco, CA, United States
Bouncer
Acquired
What they do:
SDK for scanning and verifying credit cards and photo IDs in mobile…
Quick facts:
HQ: San Francisco, CA, United States
JumpWire
Acquired
What they do:
Dynamic access controls for all data and databases
Quick facts:
HQ: New York, NY, United States
BitPatrol
Acquired
What they do:
AI-powered code security
Quick facts:
HQ: New York, NY, United States
Hunter2
Acquired
What they do:
Hunter2 trains engineering teams in application security through…
Quick facts:
HQ: Boston, MA, United States
YC W18Early stage
Fuzzbuzz
Acquired
What they do:
Fuzzing as a Service
Quick facts:
HQ: San Francisco, CA, United States
YC W19Early stage
Datree
Shut down
What they do:
Datree prevents Kubernetes misconfigurations from reaching production
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ThinAir
Shut down
What they do:
Intelligent data security for teams
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HQ: San Francisco, CA, United States
NuCypher (aka Threshold Network)
Shut down
What they do:
Network for decentralized threshold cryptography and end-to-end…
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HQ: Austin, TX, United States
Squire.ai
Shut down
What they do:
Never code alone.
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HQ: San Francisco, CA, United States
Protego
Shut down
What they do:
We help companies recover lost revenue from chargebacks
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Tesseral
Shut down
What they do:
The open source platform for managing identity in business software
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HQ: San Francisco, CA, United States
LunaSec
Shut down
What they do:
An Open Source dependency security tool that is smarter than the rest
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HQ: Seattle, WA, United States
Visual One
Shut down
What they do:
AI for security cameras
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HQ: San Francisco, CA, United States
Bifrost
Shut down
What they do:
Wills and Estate Management for Crypto
Quick facts:
HQ: San Francisco, CA, United States
Slauth.io
Shut down
What they do:
The IAM Policy Copilot
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Bannerman
Shut down
What they do:
Security Guard Company Marketplace
Quick facts:
HQ: San Francisco, CA, United States
SlashAuth
Shut down
What they do:
The solution for fine-grained access control in web3
Quick facts:
HQ: San Francisco, CA, United States
Notebook Labs
Shut down
What they do:
Decentralized, anonymous, and accountable identity on Web3.
Quick facts:
HQ: San Francisco, CA, United States
WireOver
Shut down
What they do:
Really secure file sending for big files.
Quick facts:
HQ: Boston, MA, United States
Patchwork Security
Shut down
What they do:
Security patch notifications for servers. Build it, deploy it, and…
Quick facts:
HQ: San Francisco, CA, United States