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 |
|---|---|---|---|---|---|---|---|---|
OpenMeter | W23 | Usage Metering, AI & API Monetization | Acquired | — | 7 | Peter Marton, Andras Toth | Reveal | |
OpenSight | W23 | AI-powered customer support automation for fast-growing companies | Inactive | San Francisco, CA, USA; Sunnyvale, CA, USA; Remote | 3 | Ruoni Wang, Jeff Huang, Victoria Wan, Jeffery Huang | Reveal | |
Outerbase | W23 | The interface for your database | Acquired | Pittsburgh, PA, USA; San Francisco, CA, USA; Remote | 4 | Brandon Strittmatter, Brayden Wilmoth | Reveal | |
Outerbase | W23 | The interface for your database | Acquired | Pittsburgh, PA, USA | 4 | Brandon Strittmatter, Brayden Wilmoth | Reveal | |
OV Overflux | W23 | Streamline EV charger installations for real estate developers | Inactive | Los Angeles, CA, USA | 2 | — | Richard Zhang, Ari Sokolov | Reveal |
Parabolic | W23 | AI assistant for customer support | Inactive | San Francisco, CA, USA | 2 | Shub Viragi | Reveal | |
Peeba | W23 | Risk-free wholesale for retailers across Southeast Asia | Inactive | Jakarta, Jakarta, Indonesia | 30 | Jacky Lai | Reveal | |
Persana AI | W23 | Sales Agents with 100+ data sources to close more deals | Acquired | San Francisco, CA, USA | 2 | Sriya Maram, Rush Shahani | Reveal | |
Persana AI | W23 | Sales Agents with 100+ data sources to close more deals | Active | San Francisco, CA, USA | 2 | Sriya Maram, Rush Shahani | Reveal | |
Pier | W23 | Stripe for Credit - Trusted Credit Compliance Partner | Active | San Francisco, CA, USA | 4 | Jessica Zhang | Reveal | |
Pier | W23 | Stripe for Credit - Trusted Credit Compliance Partner | Active | San Francisco, CA, USA | 4 | Jessica Zhang, Alex Hegevall Clarke | Reveal | |
Pierre | W23 | Pierre is a new, opinionated, git platform. | Active | San Francisco, CA, USA | 10 | Jacob Thornton, Ian Ownbey | Reveal | |
Pigeon | W23 | AI-powered document automation: collect, review, extract, and sync. | Active | New York City, NY, USA | 5 | Adam Bulow | Reveal | |
Pirros | W23 | AI Platform for Architects and Engineers | Active | Los Angeles, CA, USA | 44 | Ari Baranian, Peter Johann | Reveal | |
PlayAI | W23 | Our mission is to make Voice AI accessible and useful to all. | Acquired | San Francisco, CA, USA | 35 | hammad Syed, Mahmoud felfel, Hammad Syed | Reveal | |
Plutis | W23 | — | Active | San Francisco, CA, USA | 2 | Kamil Ali, Asim Hirji | Reveal | |
PoloTab | W23 | Restaurant software that actually works | Active | Mexico City, CDMX, Mexico | 18 | Andres Richardson, Juan Chomali, Aldo Piaggio | Reveal | |
PoplarML | W23 | Deploy Machine Learning Models with One Command | Active | San Francisco, CA, USA | 2 | Danna Liu, Evan Chu | Reveal | |
Portalform | W23 | Build and host internal tools | Active | Ashburn, VA, USA | 4 | Felipe Aragão, Felipe Arago | Reveal | |
Propexo | W23 | Plaid for Commercial Real Estate | Active | Boston, MA, USA | 6 | Nick Johnson, Ben Keller | Reveal | |
Pylon | W23 | The Agentic Support Platform purpose-built for B2B. | Active | San Francisco, CA, USA | 120 | Advith Chelikani, Marty Kausas, Robert Eng | Reveal | |
Reflex | W23 | The operating system for building mission-critical enterprise apps. | Active | San Francisco, CA, USA | 10 | Nikhil Rao, Alek Petuskey | Reveal | |
Relace | W23 | Models and infra for coding agents | Active | San Francisco, CA, USA | 7 | Preston Zhou, Eitan Borgnia | Reveal | |
Repacket | W23 | Employee security done for you. | Active | Vancouver, BC, Canada | 4 | Noah Stanford, Michael Melone | Reveal | |
Resend | W23 | Email for developers | Active | Remote | 45 | Zeno Rocha, Bu Kinoshita | Reveal | |
Retape | W23 | AI workers for debt settlement | Active | — | 3 | Sahil Singla, Ankit Goyal, Shubham Rana | Reveal | |
rift | W23 | The sales platform built to help you focus | Active | San Francisco, CA, USA | 8 | Fil Twarowski, Edvard Eriksson | Reveal | |
Rollstack | W23 | Automate data-driven slide decks and documents with AI | Active | New York, NY, USA | 30 | Nabil Jallouli, Younes Jallouli | Reveal | |
Rollstack | W23 | Automate data-driven slide decks and documents with AI | Active | New York City, NY, USA; Remote | 30 | Nabil Jallouli, Younes Jallouli | Reveal | |
Rubber Ducky Labs | W23 | AI Powered Product Discovery | Inactive | San Francisco, CA, USA; Remote | 2 | Alexandra Kissel, Georgia Hong, Alexandra Johnson | Reveal | |
Rubber Ducky Labs | W23 | AI Powered Product Discovery | Inactive | San Francisco, CA, USA | 2 | Alexandra Kissel, Georgia Hong | Reveal | |
Salient | W23 | AI Servicing for Auto Lenders | Active | San Francisco, CA, USA | 40 | Ari Malik, Mukund Tibrewala | Reveal | |
Salient | W23 | AI Servicing for Auto Lenders | Active | San Francisco, CA, USA | 40 | Ari Malik, Mukund Tibrewala | Reveal | |
Sameday | W23 | The leading AI workforce for the trades. | Active | Lehi, UT, USA | 7 | Aaron Cooper | Reveal | |
Sameday | W23 | The leading AI workforce for the trades. | Active | Lehi, UT, USA | 7 | Aaron Cooper | Reveal | |
Second | W23 | AI-Native Enterprise Codebase Maintenance | Inactive | — | 3 | Eric Rowell | Reveal | |
Second | W23 | AI-Native Enterprise Codebase Maintenance | Inactive | — | 3 | Eric Rowell | Reveal | |
Serial | W23 | Root cause manufacturing issues in seconds | Inactive | San Francisco, CA, USA | 2 | Tak Alguire, Devon Copeland | Reveal | |
Serial | W23 | Root cause manufacturing issues in seconds | Inactive | San Francisco, CA, USA | 2 | Tak Alguire, Devon Copeland | Reveal | |
Sherloq | W23 | One place for all your queries, directly on your SQL editor | Active | Tel Aviv-Yafo, Tel Aviv District, Israel | 6 | Noy Twerski, Nadav Gutman, Alon Greenfield | Reveal | |
ShortLoop | W23 | Phone AI that Captures Every Dealership Revenue Opportunity | Active | San Francisco, CA, USA | 8 | Vishnu Vinjam, Sumit Mulchandani, Deepak Thakur | Reveal | |
Sirdab | W23 | Cloud warehousing & supply chain platform in MENA | Active | Riyadh Saudi Arabia | — | Naif Alzahri, Abdulrahman Alnamlah | Reveal | |
Skyhook | W23 | PaaS-like experience with the power of Kubernetes, on your cloud | Active | Tel Aviv-Yafo, Tel Aviv District, Israel | 7 | Nadav Erell | Reveal | |
Social Radar | W23 | Social Radar is the best way to search for posts, people, and… | Active | San Francisco, CA, USA | 3 | Rohan Arora, Venkat Krishnan | Reveal | |
SpecCheck | W23 | Unifying how the optical industry does business. | Active | Los Angeles, CA, USA; Remote | 5 | Joe DeMaria, Arnold Villatoro | Reveal | |
SpecCheck | W23 | Unifying how the optical industry does business. | Active | Los Angeles, CA, USA | 5 | Joe DeMaria, Arnold Villatoro | Reveal | |
Speedy Labs | W23 | Maximize profits with AI-powered rebate management. | Active | — | 8 | Jatin Mehta, Ranti Dev Sharma, Ayush Jasuja | Reveal | |
StackAI | W23 | The Enterprise AI Transformation Platform | Active | San Francisco, CA, USA | 55 | Toni Rosinol, Bernard Aceituno | Reveal | |
Streamstraight | W23 | The best way to stream LLM thinking traces to your frontend | Active | San Francisco, CA, USA | 1 | Hansen Qian | Reveal | |
Struct | W23 | Multi-lingual AI Voice Agents | Inactive | — | 3 | Fatma Akcay, Eamonn Gahan | 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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