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 |
|---|---|---|---|---|---|---|---|---|
Tamarind Bio | W24 | AI Inference Platform for Drug Discovery | Active | — | 10 | Deniz Kavi, Sherry Liu | Reveal | |
Tensorfuse | W24 | Run serverless GPUs on your own cloud | Active | — | 2 | Samagra Sharma, Agam Jain | Reveal | |
Terrakotta | W24 | AI platform for phone-first sellers | Active | Seattle, WA, USA | 5 | Vincent Wilson, Kusiima Boswell, Gabriel Wilson | Reveal | |
Terrakotta | W24 | AI platform for phone-first sellers | Active | Shoreline, WA, USA | 5 | Vincent Wilson, Kusiima Boswell, Gabriel Wilson | Reveal | |
Tesseral | W24 | The open source platform for managing identity in business software | Inactive | San Francisco, CA, USA | 5 | Ned O'Leary, Ulysse Carion | Reveal | |
Thorntale | W24 | The world's best presentation editor, powered by AI. | Inactive | San Francisco, CA, USA | 2 | Dori Wilson, Ellen Hui, John Stimac | Reveal | |
Tile | W24 | AI-first notebook for building operational data apps | Active | New York, NY, USA | 2 | Jenica Zhong | Reveal | |
Toma | W24 | AI for Underserved Industries | Active | San Francisco, CA, USA | 20 | Monik Pamecha, Anthony Krivonos | Reveal | |
Toma | W24 | AI for Underserved Industries | Active | San Francisco, CA, USA | 20 | Monik Pamecha, Anthony Krivonos | Reveal | |
Topo | W24 | All-in-one AI platform for outbound sales | Active | Paris, Île-de-France, France | 12 | Dan Elkaim, Léonard Henriquez, Robin Philibert | Reveal | |
Topo | W24 | AI Agents for outbound working by your side | Active | Paris, France | 12 | Dan Elkaim, Léonard Henriquez, Robin Philibert | Reveal | |
Tower | W24 | M&A due diligence platform powered by AI | Active | Toronto, ON, Canada | 3 | Adam Dorfman, Andy Zhang | Reveal | |
Tracecat | W24 | The open source AI-native security automation platform | Active | New York City, NY, USA | — | Chris Lo, Daryl Lim | Reveal | |
Trellis AI | W24 | AI for streamlining healthcare paperwork | Active | — | 25 | Mac Klinkachorn, Jacky Lin | Reveal | |
Trieve | W24 | All-in-one API for search, RAG, & recommendations | Acquired | San Francisco, CA, USA | 7 | Nick Khami, Denzell Ford | Reveal | |
Triply | W24 | Operating system for travel businesses in Africa with embedded finance | Active | Nairobi, Kenya | 18 | Peter Wachira, Collins Muthinja | Reveal | |
Tusk | W24 | AI agent that generates unit and integration tests | Acquired | San Francisco, CA, USA | 4 | Marcel Tan, Sohil Kshirsagar | Reveal | |
Ubicloud | W24 | Open source alternative to AWS | Active | — | 15 | Umur Cubukcu, Ozgun Erdogan, Daniel Farina | Reveal | |
Ubicloud | W24 | Open source alternative to AWS | Active | San Francisco, CA, USA | 15 | Umur Cubukcu, Ozgun Erdogan, Daniel Farina | Reveal | |
Upsolve AI | W24 | Deploy trustworthy data agent that know your business | Active | — | 5 | Ka Ling Wu, Serguei Balanovich, Ka Ling Wu | Reveal | |
Veles | W24 | CPQ for humans and agents | Active | Santa Barbara, CA, USA | 5 | Simon Ooley, Patrick Koperwas | Reveal | |
Veles | W24 | The Sales Calculator | Active | Santa Barbara, CA, USA | 5 | Simon Ooley, Patrick Koperwas | Reveal | |
Vibrant Labs | W24 | Autonomously scaling environments | Active | San Francisco, CA, USA; Remote | 6 | Jithin James, Shahul ES | Reveal | |
Voicepanel | W24 | Build with conviction | Active | — | 5 | Asa Schachar, John Provine | Reveal | |
VoxOps AI | W24 | Voice AI for Automotive | Active | London, UK | 6 | Stefan Vukcevic, John Hesler | Reveal | |
Wavelength | W24 | Build Magical Customer Experiences | Active | San Francisco, CA, USA | 3 | Pranav Mallampalli, Deepali Jain | Reveal | |
Yarn | W24 | Yarn is the video product for agentic GTM teams. | Active | New York City, NY, USA | 6 | Jasper Story, Nicole Atack, Jasper Diego Story | Reveal | |
Yarn | W24 | Make sales and marketing videos with AI. | Active | New York, NY, USA | 6 | Jasper Story, Nicole Atack | Reveal | |
Yoneda Labs | W24 | Foundation Model for Chemical Manufacturing | Active | — | 3 | Michał Mgeładze-Arciuch, Jan Oboril, Daniel Vlasits | Reveal | |
Yoneda Labs | W24 | Foundation Model for Chemical Manufacturing | Active | San Francisco, CA, USA | 3 | Michał Mgeładze-Arciuch, Jan Oboril, Daniel Vlasits | Reveal | |
Zaymo | W24 | Interactive email builder for ecommerce brands | Active | Lehi, UT, USA | 13 | Brice Douglas, Daniel Jones | Reveal | |
Zep AI | W24 | Agent Context Is Hard. We Fixed It. | Active | San Francisco, CA, USA | 5 | Daniel Chalef | Reveal | |
Zep AI | W24 | Agent Context Is Hard. We Fixed It. | Active | San Francisco, CA, USA | 5 | Daniel Chalef | Reveal | |
Affil.ai | S24 | AI Affiliate Network For Financial Companies | Active | San Francisco, CA, USA | 4 | John Ta, Vivek Olumbe | Reveal | |
&AI | S24 | Collaborative workspace for patent litigators | Active | San Francisco, CA, USA | 7 | Caleb Harris, Herbert Turner | Reveal | |
&AI | S24 | Collaborative workspace for patent litigators | Active | San Francisco, CA, USA | 13 | Caleb Harris, Herbert Turner | Reveal | |
Aluna | S24 | Data for biomedical AI | Active | San Francisco, CA, USA | 3 | David Chu | Reveal | |
Anara | S24 | AI for researchers | Active | San Francisco, CA, USA | 5 | Naveed Janmohamed | Reveal | |
Anglera | S24 | AI-Powered Product Data Enrichment | Active | San Francisco, CA, USA | 5 | Amay Aggarwal, Ray Iyer | Reveal | |
Apten | S24 | Omnichannel AI agents that engage leads across SMS, voice, and email | Active | San Francisco, CA, USA | 3 | Daniel Ho, Roshan Kumaraswamy | Reveal | |
Apten | S24 | Omnichannel AI agents that engage leads across SMS, voice, and email | Active | San Francisco, CA, USA | 6 | Daniel Ho, Roshan Kumaraswamy | Reveal | |
Arva AI | S24 | AI Agents to scale AML, KYB and KYC operations | Active | — | 14 | Rhim Shah, Oli Wales | Reveal | |
Arva AI | S24 | AI Agents to scale AML, KYB and KYC operations | Active | London, England, United Kingdom | 20 | Rhim Shah, Oli Wales | Reveal | |
autarc | S24 | autarc is the agentic OS for energy installers. | Active | Berlin, Berlin, Germany | 30 | Etienne-Noel Krause, Thies Hansen, Marius Seufzer | Reveal | |
autarc | S24 | autarc is the OS for Europe's One-Stop Energy Installers | Active | Berlin, Germany | 30 | Etienne-Noel Krause, Thies Hansen, Marius Seufzer | Reveal | |
Benchify | S24 | Executable healthcare contracts | Active | San Francisco, CA, USA | 4 | Juan Castaño, Max von Hippel | Reveal | |
Benchify | S24 | Executable healthcare contracts | Active | San Francisco, CA, USA | 4 | Juan Castaño, Max von Hippel | Reveal | |
bluedoor | S24 | The world's data, ready for AI | Active | Seattle, WA, USA | 1 | Sam Crombie | Reveal | |
Callback | S24 | Effortless AI automation for business operations | Active | San Francisco, CA, USA | 2 | Alan Xie, Paulo Bautista | Reveal | |
camfer | S24 | Building the world’s first AI mechanical engineer. | Inactive | San Francisco, CA, USA | 4 | Arya Bastani | 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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