Industry
YC B2B Companies
3,278 Y Combinator b2b startups with verified founder contacts, batch info, and company data.
3,278
Companies
964
Active
10
Acquired
0
Public
YC Company Directory
50 companies
Company | Batch | Description | Status | Location | Team | Site | Founders | Reveal |
|---|---|---|---|---|---|---|---|---|
Emdash | W26 | Open-source Agentic Development Environment | Active | San Francisco, CA, USA | 2 | Raban von Spiegel, Arne Strickmann | Reveal | |
End Close | W26 | AI powered reconciliation for high-volume payments companies | Active | — | 2 | Sean Bolton, David Newell | Reveal | |
Envariant | W26 | Interpretability and reasoning infra for foundation models. | Active | San Francisco, CA, USA | 1 | Varun Agarwal | Reveal | |
Fed10 | W26 | AI agents that replace your policy consultants | Active | San Francisco, CA, USA | 3 | Armand Iorgulescu, Zayan Islam, Winston Wei | Reveal | |
Fed10 | W26 | AI Agents for Government Affairs | Active | San Francisco, CA, USA | 3 | Armand Iorgulescu, Zayan Islam, Winston Wei | Reveal | |
Fixture | W26 | An AI-first CRM built for Startups | Active | — | 5 | Matt Riley, Quin Hoxie | Reveal | |
FullSeam | W26 | FullSeam is an AI employee for finance and accounting teams. | Active | — | 3 | Aaron Coppa, Thomas Dowling, Geoff Segal | Reveal | |
FullSeam | W26 | FullSeam is an AI employee for finance and accounting teams. | Active | — | 3 | Aaron Coppa, Thomas Dowling, Geoff Segal | Reveal | |
General Legal | W26 | Elite AI law firm for high growth companies | Active | — | 25 | Ryan Walker, J.P. Mohler, Javed Qadruddin | Reveal | |
Glue | W26 | Evals for frontier research agents | Active | San Francisco, CA, USA | 1 | Perbhat Kumar | Reveal | |
Haladir | W26 | Operational Superintelligence for Global Logistics | Active | San Francisco, CA, USA | 4 | Jibran Hutchins, Quan Huynh, Preston Schmittou, Joseph Tso | Reveal | |
Haladir | W26 | AI-Enabled Mainframe Modernization and Code Translation. | Active | San Francisco, CA, USA | 4 | Jibran Hutchins, Quan Huynh, Preston Schmittou, Joseph Tso | Reveal | |
Hex Security | W26 | Agentic Offensive Security at Scale | Active | San Francisco, CA, USA | 3 | Huzaifa Ahmad, Ahmad Khan, Prama Yudhistira | Reveal | |
IncidentFox | W26 | AI SRE agent that triages, coordinates, and fixes production incidents | Active | San Francisco, CA, USA | 2 | Jimmy Wei, Long Yi | Reveal | |
InventoryQuant | W26 | We automate the inventory process in insurance | Active | San Francisco, CA, USA | 1 | Sander Schulhoff | Reveal | |
Ishiki Labs | W26 | Building the Future of Multimodal AI | Active | — | 2 | Robert Xu, Amit Yadav | Reveal | |
Jinba | W26 | Automate enterprise workflows through chat | Active | — | 2 | Shoya Matsumori, Takuya Norisugi | Reveal | |
Klaus AI | W26 | Fast and Safe OpenClaw on the cloud | Active | San Francisco, CA, USA | 2 | Robbie Thompson, Bailey Wickham | Reveal | |
Lance | W26 | AI Agents That Run Hotel Operations. | Active | San Francisco, CA, USA | 10 | Caleb Chan, Gavin Brennen, Gatik Trivedi | Reveal | |
Lance | W26 | Your Hotel's Best Employees | Active | San Francisco, CA, USA | 3 | Gavin Brennen, Caleb Chan, Gatik Trivedi | Reveal | |
Laurence | W26 | RL for performance marketing | Active | — | 2 | Matthew Chen, Leo Gierhake | Reveal | |
Laurence | W26 | Quantitative research for autonomous e-commerce growth | Active | New York City, NY, USA | 2 | Matthew Chen, Leo Gierhake | Reveal | |
LegalOS | W26 | The AI-Native Immigration Law Firm | Active | San Francisco, CA, USA; Remote | 3 | Matthew Asir, Rachel Asir, Claire Jutabha | Reveal | |
LegalOS | W26 | The AI-powered law firm for complex work visas | Active | San Francisco, CA, USA | 3 | Matthew Asir, Rachel Asir, Claire Jutabha | Reveal | |
Lexius | W26 | AI for Corporate Security Cameras | Active | San Francisco, CA, USA | 3 | David Elskamp, Liam Webster | Reveal | |
Lexius | W26 | AI Crime Detection | Active | San Francisco, CA, USA | 3 | David Elskamp, Liam Webster | Reveal | |
Librar Labs | W26 | The first and only AI-librarian. | Active | — | 4 | Jonathan Görtz, Carl-Hugo Jacobsson, Kaan Sirin | Reveal | |
Lucent | W26 | AI that automatically improves products from user behavior | Active | San Francisco, CA, USA | 2 | Alisa Rae | Reveal | |
Luel | W26 | Turning everyday words and actions into usable training data. | Active | San Francisco, CA, USA | 12 | William Namgyal, Inigo Lenderking | Reveal | |
Mantis | W26 | Digital Twins of humans | Active | New York City, NY, USA | 3 | Georgia Witchel | Reveal | |
Martini | W26 | AI Video Production for Professionals | Active | San Francisco, CA, USA | 2 | Koh Terai, Long Hoang | Reveal | |
Maven | W26 | Payments Infrastructure for Voice Agents | Active | San Francisco, CA, USA | 2 | Brandon Boehme, Wasi Ahmed | Reveal | |
Mendral | W26 | AI DevOps Engineer | Inactive | San Francisco, CA, USA | 2 | Sam Alba, Andrea Luzzardi | Reveal | |
Menza | W26 | The AI data analyst for consumer brands | Active | London, England, United Kingdom | 3 | Qasim Munye, Mariam Ahmed | Reveal | |
MochaCare | W26 | Agentic Management Service for Care Organizations | Active | San Francisco, CA, USA | 2 | Nicolas Walker, Pranav Uppiliappan, Nick Walker | Reveal | |
Moda | W26 | Sentry for AI. | Active | San Francisco, CA, USA | 2 | Mohammed Al-Rasheed, Pranav Bedi | Reveal | |
Moritz | W26 | Global AI-native law firm handling legal work with same-day turnaround | Active | Oslo, Oslo, Norway | 10 | Pamir Ehsas, Stefan Mandaric | Reveal | |
MouseCat | W26 | AI to fight financial crime | Active | New York City, NY, USA | 6 | Nicholas Aldridge, Joseph McAllister | Reveal | |
MouseCat | W26 | The AI Toolkit for Risk Teams | Active | New York, NY, USA | 2 | Nicholas Aldridge, Joseph McAllister | Reveal | |
o11 | W26 | The AI Data Warehouse For Financial Firms | Active | New York City, NY, USA | 2 | Aryah Oztanir, Ajay Misra | Reveal | |
OpenSpec | W26 | Plan mode for complex features | Active | Sydney, NSW, Australia | — | Tabish Bidiwale | Reveal | |
Orthogonal | W26 | Agentic Payments for APIs | Active | San Francisco, CA, USA | 2 | Christian Pickett, Bera Sogut | Reveal | |
Ossus | W26 | Intelligence for cultural institutions | Active | San Francisco, CA, USA | 3 | Jonathan Görtz, Carl-Hugo Jacobsson, Kaan Sirin | Reveal | |
Overshoot | W26 | AI Infra for real-time vision applications | Active | San Francisco, CA, USA | 5 | Zakaria El hjouji, Younes El hjouji, Younes El hjouji | Reveal | |
Oximy | W26 | Take command of the AI your company already runs on. | Active | San Francisco, CA, USA | 8 | Naman Ambavi | Reveal | |
Oxus | W26 | AI-powered automation for internal audit workflows | Active | San Francisco, CA, USA | 3 | Janet Liu, Melinda Liu, Christine Watts | Reveal | |
Payna | W26 | AI Licensing Agent for Regulated Industries | Active | San Francisco, CA, USA | 2 | Aaron Chen, He Song | Reveal | |
Perfectly | W26 | The AI-native Recruiting Operating System | Active | San Francisco, CA, USA | 3 | Victor Luo, Zhuang (Gary) Luo | Reveal | |
Perfectly | W26 | The AI-native Recruiting OS | Active | San Francisco, CA, USA | 4 | Victor Luo, Zhuang (Gary) Luo, Huimin Xie | Reveal | |
Piris Labs | W26 | The Networking Layer of AI | Active | San Francisco, CA, USA | 8 | Ali Khalatpour, Keyvan Moghadam | Reveal |
Status Breakdown
About YC B2B Companies
Y Combinator has funded 3,278 b2b 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 b2b innovation globally.
964 of these companies are currently active. 10 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC b2b startup.
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