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 |
|---|---|---|---|---|---|---|---|---|
ZeroSettle | W26 | Bypass the App Store tax and enable web-based purchases | Active | — | 2 | Ryan Elliott, Gabe Roeloffs | Reveal | |
Zymbly | W26 | Automates admin for aircraft technicians | Active | — | 3 | Robbie Bourke, Azmat Habibullah, Ben Jacob | Reveal | |
a0.dev | W25 | We make mobile apps using AI. | Active | San Francisco, CA, USA | 3 | Seth Setse, Ayomide Omolewa | Reveal | |
A1Base | W25 | Twilio for AI Agents | Active | San Francisco, CA, USA | 2 | Pennie Huang | Reveal | |
Adam | W25 | AI Powered CAD | Active | San Francisco, CA, USA | 4 | Zach Dive, Aaron Li | Reveal | |
AfterQuery | W25 | Research lab investigating the boundaries of AI capabilities. | Active | San Francisco, CA, USA | 20 | Danny Tang, Carlos Georgescu, Spencer Mateega | Reveal | |
Agentin AI | W25 | AI Agents that automate enterprise software processes | Active | San Francisco, CA, USA | 2 | Sankeerth Rao Karingula | Reveal | |
Altrina | W25 | The SOP Automation Platform | Active | Menlo Park, CA, USA | 4 | Mo Nasir, Harvey Hu | Reveal | |
Artificial Societies | W25 | We use AI to simulate entire human societies | Active | San Francisco, CA, USA | 3 | James He, Patrick Sharpe | Reveal | |
assistant-ui | W25 | Open Source React.js Library for AI Chat | Active | San Francisco, CA, USA | 3 | Simon Farshid | Reveal | |
Asteroid | W25 | AI Browser Agents for the Back-Office | Active | San Francisco, CA, USA | 4 | David Mlcoch, Joe Hewett | Reveal | |
AthenaHQ | W25 | Get Your Brand Discovered on AI Search. | Active | San Francisco, CA, USA | 12 | Andrew Yan, Alan Yao | Reveal | |
awen | W25 | We are rebuilding photoshop with an AI-voice interface. | Active | — | 3 | Thibault Henriet | Reveal | |
Axal | W25 | Automate Data Entry From Inbox to ERP | Active | San Francisco, CA, USA | 2 | Samai Patel, Nand Vinchhi | Reveal | |
Bezel | W25 | Digital AI humans that model clothes for e-commerce brands. | Active | New York, NY, USA | 1 | Kashyap Achar | Reveal | |
Bluebook | W25 | AI for accounting | Active | San Francisco, CA, USA | 4 | Philip Andersson, Filip Stål | Reveal | |
Browser Use | W25 | Leading open-source web agent project with 50k stars in 3 months | Active | San Francisco, CA, USA | 7 | Magnus Müller, Gregor Zunic | Reveal | |
Butter | W25 | Muscle Memory Cache for Agents | Active | — | 2 | Erik Dunteman | Reveal | |
Bystreet | W25 | Find your next hospitality deal. | Active | San Francisco, CA, USA | 4 | Charlie Maki, Corey Anderson, Cameron Hake | Reveal | |
Calltree | W25 | Enterprise-grade AI support reps for call centers | Active | San Francisco, CA, USA | 6 | Kun Qian, Robertson Taylor | Reveal | |
Candid | W25 | The hiring platform for exceptional talent | Active | — | 2 | Rami Ghanem | Reveal | |
Cardamon | W25 | AI compliance co-pilot for regulated financial businesses | Active | San Francisco, CA, USA | 2 | Areg Nzsdejan, Dmytro Astakhov | Reveal | |
careCycle | W25 | Voice AI teams for medicare agencies. | Active | San Mateo, CA, USA | 4 | Alex Doonanco, Evan Roubekas | Reveal | |
Caseflood.ai | W25 | the AI inbound sales team for law firms | Active | San Francisco, CA, USA | 3 | Ethan Hilton, Tolen Schreid | Reveal | |
Cedar | W25 | The open source copilot for any app | Active | — | 2 | Jesse Li, Isabelle Ilyia | Reveal | |
Cifrato | W25 | AI Accountant for Accounting Firms | Active | Bogotá, Bogota, Colombia | 13 | Juan Pisco | Reveal | |
Confident AI | W25 | The Leading LLM Eval and Observability Platform for AI Quality | Active | San Francisco, CA, USA | 7 | Jeffrey Ip, Kritin Vongthongsri | Reveal | |
Contrario | W25 | Fill critical roles faster with AI-empowered recruiters | Active | San Francisco, CA, USA | 10 | Arya Marwaha, Aditya Sood | Reveal | |
CopyCat | W25 | AI-Powered Automation to Transform Your Back Office | Active | San Francisco, CA, USA | 2 | Graham Sabin, Abhi Balijepalli | Reveal | |
Corsair | W25 | The TypeScript Integration ORM | Active | New York, NY, USA | 2 | Dev Jain | Reveal | |
Cuckoo Labs | W25 | Real-time AI translator for global sales and marketing | Active | — | 2 | Yong Hee Lee, Gunwoo Kim | Reveal | |
Dalus | W25 | AI-Powered Hardware System Design Software | Active | — | 3 | Sebastian Völkl, Eliot Khachi | Reveal | |
Delineate | W25 | Agents for Accelerated Clinical Trial Design | Active | Boston, MA, USA | 20 | Emily Nieves, Jawad Iqbal | Reveal | |
Ergo | W25 | AI Agents for Revenue Teams | Active | San Francisco, CA, USA | 0 | Yash Dulla, Ishan Sheth | Reveal | |
Exla | W25 | An SDK to run transformer models anywhere | Active | — | 0 | Pranav Nair, Viraat Das | Reveal | |
Fira | W25 | Financial research platform for investment firms | Active | — | 4 | Alex Tkachenko, Alexey Taktarov | Reveal | |
Flowtel | W25 | The AI Voice agents for hotels | Active | San Francisco, CA, USA | 5 | Eylon Miz | Reveal | |
FuseAI | W25 | The only outbound sales software you will ever need. | Active | — | 8 | Saurav Bubber, Imogen Low | Reveal | |
Gale | W25 | Fast and Data-Driven Immigration Platform | Active | San Francisco, CA, USA | 3 | Rahul Gudise, Haokun Qin, Rishabh Sambare | Reveal | |
G LNK | W25 | Simplifying Collaboration for Healthcare Organizations & Professionals | Active | New York, NY, USA | 2 | Rayan Ghandour, Raouf Abujaber | Reveal | |
Haleum | W25 | Human Risk Intelligence for the AI-era | Active | San Francisco, CA, USA | 3 | Adarsh Ambati, Ansh Gupta, Aditya Iyengar | Reveal | |
Hey Telo | W25 | Voice AI for Home Services | Active | — | 2 | Christopher Grittner, Daniel Grittner | Reveal | |
hud | W25 | Platform for building RL environments and evals | Active | San Francisco, CA, USA | 5 | Jay Ram, Lorenss Martinsons | Reveal | |
Leaping AI | W25 | Voice AI agents to automate call centers (digital call center workers) | Active | San Francisco, CA, USA | 8 | Kevin Wu, Arkadiy Telegin | Reveal | |
Lopus AI | W25 | Data Unification for GTM Analytics | Active | San Francisco, CA, USA | 2 | Aamish Ahmad Beg, Danylo Borodchuk | Reveal | |
Lucidic AI | W25 | AI Agent Training via Simulations | Active | San Francisco, CA, USA | 4 | Abhinav Sinha, Andy Liang, Jeremy Tian | Reveal | |
Macadamia | W25 | AI Agents for Complex Engineering Projects | Active | — | 2 | Abel Van Steenweghen, Brecht Pierreux | Reveal | |
Maive | W25 | AI for Home Services | Active | San Francisco, CA, USA | 2 | David Tondreau, Will Cray | Reveal | |
Mastra | W25 | The Javascript framework for building AI agents, from the Gatsby devs | Active | — | 8 | Sam Bhagwat, Abhi Aiyer, Shane Thomas | Reveal | |
Mercura | W25 | AI Quote and Order Automation for Distributors & Manufacturers | Active | — | 14 | Lukas Bock, Stefan Zheng | 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.
Related Industries
Get the full b2b dataset
Verified founder emails, CSV export, and advanced filters for all 2,174 YC b2b companies.
Sign Up FreeNo credit card required