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 |
|---|---|---|---|---|---|---|---|---|
BitPatrol | X25 | AI-powered code security | Acquired | New York City, NY, USA | 1 | Christopher Lambert | Reveal | |
Blaxel | X25 | The perpetual sandbox platform | Active | San Francisco, CA, USA | 8 | Paul Sinaï, Thomas Crochet, Charles Drappier, Mathis Joffre, Nicolas Lecomte, Christophe Ploujoux | Reveal | |
Bloom | X25 | Build and share mobile apps in seconds | Active | — | 2 | David Oort Alonso, Sirian Maathuis, David Alonso | Reveal | |
Bluejay | X25 | Test, monitor, and improve your voice and chat AI agents | Active | San Francisco, CA, USA | 10 | Rohan Vasishth, Faraz Siddiqi | Reveal | |
Blueshoe | X25 | The AI-Native Consumer + Plaintiff Law Firm | Active | Boston, MA, USA | 2 | Casey O'Grady, Kai Yee Wan | Reveal | |
Bond | X25 | Your AI Chief of Staff | Active | San Francisco, CA, USA | 3 | Chloe Samaha | Reveal | |
Cactus | X25 | All-In-One AI Growth Partner. Built for Trades. | Active | San Francisco, CA, USA | 2 | Ajith Govind, Avinash Joshi | Reveal | |
Capacitive | X25 | The data gateway for agents. | Active | San Francisco, CA, USA | 2 | Kevin Treehan, Rohan Radhakeesoon | Reveal | |
Cartpole | X25 | Building reinforcement learning environments | Active | San Francisco, CA, USA | 2 | Mateo Perez | Reveal | |
Casco | X25 | Autonomous security testing for web apps, APIs, cloud, and AI systems | Active | — | 10 | Rene Brandel, Ian Saultz | Reveal | |
chrt | X25 | chrt is a logistics platform for time-critical shipping | Active | Los Angeles, CA, USA | 5 | Kyle Reagan, Aaron Carver | Reveal | |
Clarm | X25 | Build governed AI agents on your own data, without code | Active | ZH, Switzerland | 2 | Marcus Storm-Mollard | Reveal | |
Clidey | X25 | Turn scattered data into one platform for decision-making | Active | San Francisco, CA, USA; Remote | 5 | Hemang Kandwal, Anguel Hristozov | Reveal | |
Cotool | X25 | AI Agents for Security Operations Teams | Active | San Francisco, CA, USA | 4 | Logan Carmody, Eddie Conk, Max Pollard | Reveal | |
Crimson | X25 | The AI Associate for Litigation Lawyers | Active | London, England, United Kingdom | 6 | Mark Feldner, David Strömbäck, Amine Amor | Reveal | |
cubic | X25 | AI-powered code review platform | Active | London, England, United Kingdom | 6 | Paul Sanglé-Ferrière, Paul Sanglé-ferrière | Reveal | |
Den | X25 | Make real life a video game | Active | San Francisco, CA, USA | 2 | Linus Talacko, Justin Lee | Reveal | |
Docket | X25 | AI agents for web testing | Active | San Francisco, CA, USA | 2 | Nishant Hooda, Boris Skurikhin | Reveal | |
Eloquent AI | X25 | The AI Operator for Financial Services | Active | San Francisco, CA, USA | 5 | Tugce Bulut, Aldo Lipani | Reveal | |
Flott HQ | X25 | AI-native operating system for vehicle fleet management | Active | Paris, Île-de-France, France | 2 | Sylvanus MAHE, Kanvaly Fadiga | Reveal | |
Golf | X25 | Agentic AI Security and Governance | Active | San Francisco, CA, USA | 1 | Wojciech Błaszak, Antoni Gmitruk | Reveal | |
HABIT | X25 | Conversational robots for physical businesses. | Active | Los Angeles, CA, USA | — | Michael Trehan, Harish Palani | Reveal | |
HelixDB | X25 | The fastest & most scalable graph-vector database on the market | Active | London, England, United Kingdom | 6 | George Curtis, Xavier Cochran | Reveal | |
Human Behavior | X25 | Understand your users beyond the numbers | Active | San Francisco, CA, USA | 3 | Amogh Chaturvedi | Reveal | |
Kaizen | X25 | Automate anything on the web. | Active | San Francisco, CA, USA | 6 | Kenneth Acquah, Michael Silver | Reveal | |
Kanava AI | X25 | Your First AI Sales Hire for Wholesale Distributors | Inactive | San Francisco, CA, USA | 2 | Smit Dagli, Vikhyath Mondreti | Reveal | |
Kashikoi | X25 | Simulation Engine for Benchmarking AI Products | Active | San Francisco, CA, USA | 2 | Aaksha Meghawat | Reveal | |
Kirana AI | X25 | AI manager for physical stores | Active | New York City, NY, USA | 2 | Nicholas Sleeper, Prateek Pinisetti | Reveal | |
Labric | X25 | The data layer for scientific research | Active | San Francisco, CA, USA | 2 | Caitlin Hogan, Connor Hogan | Reveal | |
Leeroo | X25 | Organizational Superintelligence | Active | London, England, United Kingdom | 3 | Alireza Mohammadshahi, Majid Yazdani | Reveal | |
MindFort | X25 | Autonomous Security Agents | Active | Los Angeles, CA, USA | 5 | Brandon Veiseh, Akul Gupta | Reveal | |
Minerva | X25 | AI native accounting firm | Active | San Francisco, CA, USA | 5 | Peter Zhu, Om Agarwal | Reveal | |
mlop | X25 | Experiment tracking for training ML models | Active | London, England, United Kingdom | 2 | Stephen Sun, Lakee Sivaraya | Reveal | |
Moby Analytics | X25 | AI financial auditors | Active | Paris, Île-de-France, France | 4 | Dimitri Kassubeck, Thomas Rapilly | Reveal | |
Morphik | X25 | AI workers for Skilled Nursing and Senior Living Operations | Active | San Francisco, CA, USA | 2 | Adityavardhan Agrawal, Arnav Agrawal | Reveal | |
Naïve | X25 | Autonomous Company Infrastructure | Active | San Francisco, CA, USA | 8 | Sean Dorje, Dennis Zax | Reveal | |
nao Labs | X25 | Open Source Analytics Agent | Active | Paris, Île-de-France, France | 2 | Claire Gouze, Christophe Blefari | Reveal | |
Nimbic AI | X25 | Automatically write and update internal docs with every code commit. | Active | San Francisco, CA, USA | 3 | Akshath M, Ishan Khare, Ishan Mehta, Akshath M. | Reveal | |
Nomi | X25 | Realtime Sales Copilot | Active | Paris, Île-de-France, France; Remote | 5 | Swan Beaujard | Reveal | |
Orchid | X25 | A personal EA in your iMessage | Active | San Francisco, CA, USA | 3 | Nizar Abi Zaher, Adam Wazzan | Reveal | |
Paper Instruments | X25 | Open-source frontier models for knowledge work | Active | San Francisco, CA, USA | 3 | Daanish Khazi, Gavin Bains, Joseph Besgen | Reveal | |
ParaQuery | X25 | Managed GPU-accelerated Spark + SQL at 2x speed and half the cost | Active | New York City, NY, USA; Remote | 1 | Win Wang | Reveal | |
Parsewise | X25 | Multi-document processing for your risk teams, AI agents, pipelines | Active | London, England, United Kingdom | 6 | Max Hofer, Greg Csegzi | Reveal | |
Percival | X25 | Accelerating data analysis for research | Inactive | San Francisco, CA, USA; Remote | 3 | Kevin Bi, David Zhu | Reveal | |
Photonium | X25 | AI-Powered Optical Consulting & Software | Active | New York City, NY, USA | 5 | Jennifer Song, Adam Mhatre | Reveal | |
Plexe | X25 | Open-source agents to build predictive ML models from a prompt | Active | London, England, United Kingdom | 2 | Vaibhav Dubey, Marcello De Bernardi | Reveal | |
Probo | X25 | We help you get compliant while you focus on your business. | Active | Paris, Île-de-France, France | 6 | Antoine Bouchardy, Bryan Frimin | Reveal | |
Propolis | X25 | Hands off QA via intelligent browser agents. | Acquired | New York City, NY, USA | 2 | Marc Papazian, Matt White | Reveal | |
QualGent | X25 | AI Mobile App Quality Assurance Tester | Active | San Francisco, CA, USA | 10 | Shivam Agrawal, Aaron Yu | Reveal | |
Refresh | X25 | Training gyms for computer use and software engineering work | Active | San Francisco, CA, USA | 8 | Christopher Settles, Erik Quintanilla | 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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