Industry

YC Security Companies

81 Y Combinator security startups with verified founder contacts, batch info, and company data.

Companies

Active

Acquired

Public

YC Company Directory

31 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Corgea	S23	Corgea finds, and fixes insecure code and packages autonomously.	Active	San Francisco, CA, USA	6	Ahmad Sadeddin	Reveal
Hiro	S23	Your first security hire	Active	New York, NY, USA	2	Ethan Blackburn, Daniel Schofield	Reveal
Metalware	S23	Firmware cybersecurity	Active	San Francisco, CA, USA	4	Ryan Chow, Andrew Nedea	Reveal
Roundtable	S23	Proof of Human - invisible human verification	Active	San Francisco, CA, USA	4	Mayank Agrawal, Matt Hardy	Reveal
Xeol	S23	Close your outdated dependency attack vector	Acquired	New York, NY, USA	3	ShiHan Wan	Reveal
Oneleet	S22	YC's most popular security compliance platform (SOC 2, ISO 27001,…	Active	—	50	Bryan Onel, Ora Onel	Reveal
Overwatch	S22	Enterprise software for strategic, risk, and cyber fraud intelligence	Active	New York, NY, USA	5	Arjun Bisen, Zara Perumal	Reveal
Cloudanix	S21	Cloud and Container Security Platform	Active	Sunnyvale, CA, USA	8	Sujay Maheshwari	Reveal
ContraForce	S21	Security Delivery Platform to orchestrate AI agents for Service…	Active	McKinney, TX, USA	15	Stanislav Golubchik, Ricky Melendez	Reveal
Hyperbrowser	S21	Web infra for AI agents	Active	San Francisco, CA, USA	4	Shri Sukhani, Akshay Shekhawat	Reveal
idemeum	S21	AI-powered Application Control	Active	Palo Alto, CA, USA	10	Nik Poturnak, Jagjit Sethi	Reveal
Keyri	S21	Secure fraud prevention and authentication platform for developers	Acquired	San Francisco, CA, USA	5	Zain Azeem, Grant La Count, Saif Malik	Reveal
Malloc Inc	S21	AI-driven mobile cybersecurity	Active	Nicosia, Cyprus	10	Maria Terzi, Liza Charalambous	Reveal
Telivy	S21	Automate your cyber security risk assessments	Acquired	San Francisco, CA, USA	6	Naren Sathiya	Reveal
Notabene	S20	The Notabene platform is the trust layer for global money movement.	Active	New York, NY, USA	47	Pelle Braendgaard, Andres Junge, Ania Lipinska, Alice Nawfal	Reveal
SafeBase	S20	Trust Center platform that scales customer security reviews	Acquired	San Francisco, CA, USA	60	Al Yang, Adar Arnon	Reveal
SuperTokens	S20	Open source alternative to Auth0 / AWS Cognito / Firebase Auth	Active	San Francisco, CA, USA	10	Advait Ruia	Reveal
Swif.ai	S20	The guardrail for AI on every device	Active	880 W Maude Ave, Sunnyvale, CA 94085, USA	20	Angelo (KC) Huang	Reveal
Vectrix	S20	Scan your SaaS apps and instantly identify security issues	Acquired	San Francisco, CA, USA	7	Corey Mahan, Alex Dunbrack, Matthew Lewis	Reveal
Canix	S19	Canix makes it easy to get and stay compliant as a cannabis business.	Active	San Francisco, CA, USA	22	Stacey Hronowski	Reveal
Traces	S19	Transform your video monitoring with AI	Active	Mountain View, CA, USA	10	Veronika Yurchuk, Kostyantyn Shysh	Reveal
TRM Labs	S19	TRM is building a safer financial system for billions of people.	Active	San Francisco, CA, USA	250	Esteban Castaño, Rahul Raina	Reveal
D-ID	S17	Enable creators and developers to generate realistic AI personas	Active	Tel Aviv-Yafo, Israel	27	Sella Blondheim, Eliran Kuta, Gil Perry	Reveal
Templarbit	S17	Protecting applications from malicious activity	Acquired	San Francisco, CA, USA	11	Bjoern Zinssmeister	Reveal
Upfort	S17	Turnkey security & hassle-free cyber insurance from leading insurers	Active	San Francisco, CA, USA	38	Han Wang, Daniel Bilbao	Reveal
Upfort	S17	Turnkey security & hassle-free cyber insurance from leading insurers	Active	San Francisco, CA, USA	38	Han Wang, Daniel Bilbao	Reveal
Appcanary	S15	Appcanary tracks the dependencies you use in your apps and servers…	Acquired	Toronto, ON, Canada	2	Phill Mendonça-Vieira, Max Veytsman	Reveal
Kestrel AI	F25	AI-Native Cloud Incident Response Platform	Active	San Francisco, CA, USA	2	Raman Varma, Evan Chopra	Reveal
Multifactor	F25	Zero-trust authentication, authorization, and auditing for AI agents	Active	San Francisco, CA, USA	2	Vivek Nair	Reveal
Veria Labs	F25	Continuous AI pentesting that finds and fixes vulnerabilities	Active	San Francisco, CA, USA	3	Cayden Liao, Jayden Sarveshkumar, Stephen Xu	Reveal
Gecko Security	F24	The AI Security Engineer to Find and Fix Vulnerabilities	Active	San Francisco, CA, USA	2	Jeevan Jutla, Artemiy Malyshau	Reveal

Batch Distribution

WW264 WW252 WW245 WW2310 WW228 WW214

Status Breakdown

Active66 Acquired13 Inactive2

Top Locations

San Francisco39 New York11 Toronto3 Seattle2 Mountain View2 Palo Alto2

About YC Security Companies

Y Combinator has funded 81 security companies since its founding in 2005. These startups span from early-stage pre-launch to publicly traded companies, making YC one of the most prolific backers of security innovation globally.

66 of these companies are currently active. 13 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC security startup.

Related Industries

B2B641 Engineering, Product and Design139 Industrials89 Consumer80 Healthcare78 Fintech65 Infrastructure64 Productivity38

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