Industry
YC B2B Companies
2,174 Y Combinator b2b startups with verified founder contacts, batch info, and company data.
2,174
Companies
838
Active
79
Acquired
0
Public
YC Company Directory
50 companies
Company | Batch | Description | Status | Location | Team | Site | Founders | Reveal |
|---|---|---|---|---|---|---|---|---|
Pre | S24 | The AI accountability agent for startup founders | Active | Lake Oswego, OR, USA | 2 | Darius \ | Reveal | |
Presti AI | S24 | Helping furniture companies create product visuals with AI | Active | — | 25 | Nabil Toumi, Saad Bencherif, Hamza Bennis, Abdellah Lamrani Alaoui | Reveal | |
ProhostAI | S24 | AI Property Manager for Airbnb & Short-Term Rental Hosts | Active | San Francisco, CA, USA | 5 | Bill Ulammandakh, Andrew Lawson | Reveal | |
Promi | S24 | Optimizing ecommerce pricing with dynamic, personalized discounts | Active | — | 2 | Peter Moot, Jiaxin Lin | Reveal | |
Proxis | S24 | The platform for enterprise AI agent automations, starting with email. | Active | — | 3 | Liam Collins | Reveal | |
Quetzal | S24 | Simple, LLM-first translation and internationalization for software | Active | Oakland, CA, USA | 2 | John Thompson, Brendan Agliardo | Reveal | |
Random Labs | S24 | Random labs is building long running autonomous coding agents. | Active | — | — | Kiran (Random Labs), Mihir Chintawar | Reveal | |
Rastro | S24 | The fastest way for retailers to launch product catalogs. | Active | San Francisco, CA, USA | 3 | Baptiste Cumin, Augustin Baudoin, Papa Sougou Wele | Reveal | |
ReactWise | S24 | AI Co-Pilot for Chemical Process Optimization | Active | San Francisco, CA, USA | 2 | Alexander Pomberger, Daniel Wigh | Reveal | |
Redouble AI | S24 | Scale human-in-the-loop for AI workflows in regulated industries | Active | San Francisco, CA, USA | 3 | Martin Bittner, Haotian Li, Andrey Santrosyan | Reveal | |
Refactor | S24 | Deploying secure and reliable AI agents across healthcare, retail,… | Active | San Francisco, CA, USA | 3 | Arnav Joshi, Daniel Zamoshchin | Reveal | |
RentFlow | S24 | The first 'Buy Now Pay Later' solution for Commercial Rent | Active | San Francisco, CA, USA | 3 | Joseph Thalinjan, Alix Maurin | Reveal | |
Rescript | S24 | AI Regulatory Analyst for Enterprises | Active | Washington, DC, USA | 3 | Nikhil Ajjarapu, Vincent Huang, Alexander Pesendorfer | Reveal | |
RetroFix | S24 | Automate any workflow using plain english | Active | San Francisco, CA, USA | 2 | Isaac Toscano, Daniel Portela | Reveal | |
RiskAngle | S24 | AI medical summaries in minutes | Inactive | San Francisco, CA, USA | 2 | Bill Chen, William Hu | Reveal | |
Roger | S24 | Roger is an AI SDR that automates outbound sales and follows up 24/7. | Active | — | 2 | Rithwik Pattikonda | Reveal | |
RowBoat Labs | S24 | Open-source AI-assisted agent builder | Active | San Francisco, CA, USA | 3 | Arjun Maheswaran, Ramnique Singh | Reveal | |
RunLocal AI | S24 | The On-Device AI Development Platform | Active | London, UK | 3 | Ismail Salim, Ivan Chan | Reveal | |
Saphira AI | S24 | Vanta for Hardware | Active | San Francisco, CA, USA | 6 | Akshay Chalana, Oscar Avatare | Reveal | |
Scape | S24 | AI-native CRM that captures all your conversations | Active | San Francisco, CA, USA | 2 | Melvin Hagberg | Reveal | |
Seals AI | S24 | AI Employees for Wholesalers & Distributors | Active | San Francisco, CA, USA | 4 | Luis Mario Garcia, Heber Garza, Javier Gonzalez, Fernando Huerta | Reveal | |
Sepal AI | S24 | Data Development for Advanced AI | Acquired | San Francisco, CA, USA | 15 | Robi Lin, Kat Hu | Reveal | |
Simple AI | S24 | AI voice that sells | Active | San Francisco, CA, USA | 11 | Catheryn Li, Zach Kamran | Reveal | |
Simplex | S24 | Production-grade web agents. | Active | San Francisco, CA, USA | 2 | Shreya Karpoor, Marco Nocito | Reveal | |
Soff | S24 | AI Agents for Distributors | Active | San Francisco, CA, USA | 6 | Berni Hausleitner | Reveal | |
Sonatoria | S24 | Helping Startups Grow Organically | Active | — | 2 | Jacob Tucker | Reveal | |
Spherecast | S24 | AI Supply Chain Manager for CPG | Active | — | 6 | Leon Hergert, Paul Dietrich, Pascal Schindler | Reveal | |
Spur | S24 | Spur is your AI QA Engineer. Test your websites with natural language. | Active | San Francisco, CA, USA | 8 | Sneha Sivakumar, Anushka Nijhawan | Reveal | |
Stempad | S24 | Notion for science | Active | — | 1 | Ralph Rouhana | Reveal | |
Storia AI | S24 | Open source AI copilot that knows your company's code and its context | Active | Millbrae, CA, USA | 2 | Julia Turc | Reveal | |
Substrate | S24 | Artificial Intelligence for your medical billing team | Active | — | 2 | Inderpal Singh, Ayo Omojola | Reveal | |
Superunit | S24 | Faster, more profitable background checks with AI | Active | San Francisco, CA, USA | 2 | Peter Marler, Zach Yellin-Flaherty | Reveal | |
SureBright | S24 | Apple Care-like warranty program for every retailer | Active | New York, NY, USA | 20 | Manish Chauhan, Sanket Munjal | Reveal | |
Synnax | S24 | Unified Hardware Control and Data Processing Software | Active | — | 5 | Emiliano Bonilla, Patrick Dotson, Elham Islam | Reveal | |
Tabula | S24 | AI Copilot for SMEs & their accountants in Europe | Active | Berlin, Germany | 5 | Tim Hermes, Markus Jungnickel, Kilian Justus | Reveal | |
TaxGPT | S24 | AI tax assistant for professionals and businesses | Active | San Francisco, CA, USA | 28 | Kashif Ali, Isabella Maceda-Ali | Reveal | |
TaxGPT | S24 | AI tax assistant for professionals and businesses | Active | San Francisco, CA, USA | 28 | Kashif Ali, Isabella Maceda-Ali | Reveal | |
Terra | S24 | Design and sell products in minutes | Active | — | 6 | Lev Glushkovskii, Dylan McFarland | Reveal | |
The Forecasting Company | S24 | Foundation models for time series | Active | Paris, France | 7 | Geoffrey Negiar, Joachim Fainberg | Reveal | |
The Synthesis Company | S24 | 100x faster scientific evidence synthesis | Active | San Francisco, CA, USA | 3 | Cyrus Nouroozi, Amir Mehr | Reveal | |
Thunder Compute | S24 | The world's cheapest GPU cloud | Active | San Francisco, CA, USA | 4 | Carl Peterson, Brian Model | Reveal | |
Thyme | S24 | The OS for financial advisors | Acquired | San Francisco, CA, USA | 2 | Daniel Lantz, Fernando San Martin | Reveal | |
Typa | S24 | The content engine that wins attention and drives growth. | Active | San Francisco, CA, USA | 2 | Andrew Chung, Junyoung Park | Reveal | |
Unbound | S24 | Use AI tools without fear of data leakage | Active | San Francisco, CA, USA | 7 | Rajaram Srinivasan, Vignesh Subbiah | Reveal | |
Undermind | S24 | An AI agent for scientific research | Active | San Francisco, CA, USA | — | Joshua Ramette, Tom Hartke | Reveal | |
Unsloth AI | S24 | Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs. | Active | San Francisco, CA, USA | 8 | Daniel Han, Michael Han | Reveal | |
Vibe | S24 | Making everyone a software engineer | Active | San Francisco, CA, USA | 2 | Ray Morgan, Katia Bazzi | Reveal | |
VideoGen | S24 | AI that can create and edit professional videos | Active | — | 5 | Anton Koenig, David Grossman | Reveal | |
Village Labs | S24 | Helping America's businesses become employee owned | Active | New York, NY, USA | 2 | Roger Cawdette, Turja Chowdhury | Reveal | |
Void | S24 | The open source Cursor alternative | Active | San Francisco, CA, USA | 2 | Andrew Pareles, Mathew Pareles | Reveal |
Status Breakdown
About YC B2B Companies
Y Combinator has funded 2,174 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.
838 of these companies are currently active. 79 have been acquired. VCBacked tracks verified founder contact information, team sizes, and company status for every YC b2b startup.
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