What they do:
The Authorization Layer for AI Agents
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HQ: San Francisco, CA, United States
Top Cybersecurity Startups in the United States
This list has 177 startups and was last updated on Oct 15, 2026. 47 of them are hiring right now. Biggest hubs: San Francisco (125), New York (24), and Seattle (4). Largest teams: Vanta, TRM Labs, and Teleport. Latest round: Fraud Protection Network raised $1M (Oct 8, 2026).
177 startupsPage 4 of 5
What they do:
AI that finds and fixes OS-level vulnerabilities across device fleets
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HQ: San Francisco, CA, United States
What they do:
Catch wrong LLM answers before your customers do
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HQ: San Francisco, CA, United States
What they do:
Always-on AI security engineer
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HQ: San Francisco, CA, United States
What they do:
We make Privacy Software for SMBs.
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HQ: San Francisco, CA, United States
What they do:
Detect Gunshots | Inform Law Enforcement | Empower First Responders
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HQ: New York, NY, United States
YC W16Early stage
What they do:
Open-source agentic security automation platform
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HQ: New York, NY, United States
YC W24Early stage
Sqreen
Acquired
What they do:
Sqreen is the application security platform for the modern enterprise
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HQ: San Francisco, CA, United States
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HQ: Palo Alto, CA, United States
Funding:
$14.8M · Equity · Mar 2026
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HQ: Sunnyvale, CA, United States
Incorporated: 2021
Funding:
$7.5M · Equity · Feb 2026
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HQ: Wilmington, DE, United States
Funding:
$5.97M · Equity · Apr 2026
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HQ: Palo Alto, CA, United States
Incorporated: 2022
Funding:
$5.23M · Debt · Jan 2026
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HQ: Indianapolis, IN, United States
Incorporated: 2024
Funding:
$4.5M · Equity · Mar 2026
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HQ: Scottsdale, AZ, United States
Funding:
$3M · Equity · Oct 2026
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HQ: Sacramento, CA, United States
Incorporated: 2022
Funding:
$2.55M · SAFE · Apr 2026
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HQ: Aventura, FL, United States
Funding:
$1M · Debt · Oct 2026
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HQ: Erie, CO, United States
Incorporated: 2023
Funding:
$1M · Equity · Apr 2026
Proxy
Acquired
What they do:
Smart ring digital wallet
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HQ: San Francisco, CA, United States
Cognito
Acquired
What they do:
Frictionless, modern identity verification that starts with just a…
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HQ: San Francisco, CA, United States
Authy
Acquired
What they do:
Authy is a Two-Factor Authentication platform for developers
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HQ: San Francisco, CA, United States
SafeBase
Acquired
What they do:
Trust Center platform that scales customer security reviews
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HQ: San Francisco, CA, United States
Optery
Acquired
What they do:
Opt out software that removes your private info from the internet
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HQ: San Francisco, CA, United States
AeroFS
Acquired
What they do:
Secure Enterprise Collaboration.
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HQ: San Francisco, CA, United States
Berbix
Acquired
What they do:
Convert more verified users. Instantly & accurately validate user IDs.
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HQ: San Francisco, CA, United States
Doppler
Acquired
What they do:
Secure secrets. Prevent breaches. Keep teams moving.
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HQ: Austin, TX, United States
Clickfacts
Acquired
What they do:
ClickFacts is a Malware Software Solutions company for buyers and sellers of online media. Its automated plug and play malware discovery solution tests online…
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HQ: San Francisco, CA, United States
Kuna Systems
Acquired
What they do:
We're making a smart, front door camera with intercom that lets you…
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HQ: San Francisco, CA, United States
Final
Acquired
What they do:
A credit card that drastically reduces payment fraud and gives…
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HQ: San Francisco, CA, United States
Smyte
Acquired
What they do:
Smyte stops bad actors on social networks and marketplaces.
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HQ: San Francisco, CA, United States
Templarbit
Acquired
What they do:
Protecting applications from malicious activity
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HQ: San Francisco, CA, United States
Foxpass
Acquired
What they do:
Making enterprise security practices available for all companies.
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HQ: San Francisco, CA, United States
Tarsal
Acquired
What they do:
Data pipeline for your security data lake.
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HQ: New York, NY, United States
Vectrix
Acquired
What they do:
Scan your SaaS apps and instantly identify security issues
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HQ: San Francisco, CA, United States
Telivy
Acquired
What they do:
Automate your cyber security risk assessments
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HQ: San Francisco, CA, United States
Keyri
Acquired
What they do:
Secure fraud prevention and authentication platform for developers
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HQ: San Francisco, CA, United States
EdgeBit
Acquired
What they do:
Autofix your software dependencies
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HQ: San Francisco, CA, United States