San Francisco

YC Companies in San Francisco

2,672 Y Combinator startups based in San Francisco with verified founder contacts and company data.

2,672

Companies

San Francisco

Location

YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	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
Thunder Compute	S24	VMware for GPUs	Active	San Francisco, CA, USA	9	Carl Peterson, Brian Model	Reveal
Thyme	S24	The OS for financial advisors	Acquired	San Francisco, CA, USA	2	Daniel Lantz, Fernando San Martin	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
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
Usul	S24	AI Platform for Winning Defense & Government Contracts	Active	San Francisco, CA, USA	11	Jarren Reid, Oliver Gomez, Joonghyun Lee	Reveal
Usul	S24	AI Platform for Winning Defense & Government Contracts	Active	San Francisco, CA, USA	15	Jarren Reid, Oliver Gomez, Joonghyun Lee	Reveal
Vendra	S24	Custom Parts, Manufactured in America 🇺🇸	Active	San Francisco, CA, USA	10	Shan Mohta, Anish Bhardwaj	Reveal
Vendra	S24	Custom Parts, Manufactured in America 🇺🇸	Active	San Francisco, CA, USA	5	Shan Mohta, Anish Bhardwaj	Reveal
Vera Health	S24	AI-powered clinical decision support for healthcare providers	Active	San Francisco, CA, USA	6	Taieb Bennani, Maxime Allouch	Reveal
Vera Health	S24	AI-powered clinical decision support for healthcare providers	Active	San Francisco, CA, USA	6	Taieb Bennani, Maxime Allouch	Reveal
Vibe	S24	Making everyone a software engineer	Active	San Francisco, CA, USA	2	Ray Morgan, Katia Bazzi	Reveal
VideoGen	S24	Create professional videos in minutes with AI, online or via API	Active	San Francisco, CA, USA	6	Anton Koenig, David Grossman	Reveal
Void	S24	The open source Cursor alternative	Active	San Francisco, CA, USA	2	Andrew Pareles, Mathew Pareles	Reveal
Weave Robotics	S24	Practical and delightful home robots	Active	San Francisco, CA, USA	26	Evan Wineland, Kaan Dogrusoz	Reveal
Wordware	S24	AI agents you can rely on	Active	San Francisco, CA, USA	15	Filip Kozera, Robert Chandler	Reveal
ZeroPath	S24	Automatically find and fix your software vulnerabilities	Active	San Francisco, CA, USA	10	Dean Valentine, Nathan Hrncirik, Raphael Karger, Etienne Lunetta	Reveal
Zettascale	S24	Energy efficient chips for AI	Active	San Francisco, CA, USA	4	Elias Almqvist, Prithvi Raj	Reveal
Abundant	F24	Agent simulation and RL for researchers	Active	San Francisco, CA, USA	7	Jesse Hu, Meji Abidoye, Ke Huang	Reveal
Alex	F24	The Cursor for Xcode	Active	San Francisco, CA, USA	3	Daniel Edrisian	Reveal
Apolink	F24	24/7 satellite connectivity in low Earth orbit	Active	San Francisco, CA, USA	7	Onkar Batra	Reveal
Archil	F24	The high-performance file system that connects AI to data	Active	San Francisco, CA, USA	11	Hunter Leath	Reveal
ArchiLabs	F24	AI Data Center Design	Active	San Francisco, CA, USA	2	Brian Bakerman, William Meng	Reveal
attimet	F24	Building the Prime Radiant	Active	San Francisco, CA, USA	3	Kirthi Banothu, Xiaoyu Li	Reveal
AutoComputer	F24	Desktop RPA with AI computer use	Active	San Francisco, CA, USA	2	Madhav Singhal	Reveal
AutoComputer	F24	Desktop RPA with AI computer use	Active	San Francisco, CA, USA	2	Madhav Singhal	Reveal
Candle	F24	Candle helps friends and couples grow closer daily in just 5 minutes.	Active	San Francisco, CA, USA	2	Alex Ruber, Parth Chopra	Reveal
Canvas	F24	Building AI systems that improve from experience.	Active	San Francisco, CA, USA	3	Essam Sleiman	Reveal
Capy	F24	The IDE for the parallel age	Active	San Francisco, CA, USA	6	Nalin Semwal, Justin Sun	Reveal
Cekura	F24	Voice AI and Chat AI agents: Testing and Observability	Active	San Francisco, CA, USA	15	Tarush Agarwal, Shashij Gupta, Sidhant Kabra	Reveal
Cekura	F24	Voice AI and Chat AI agents: Testing and Observability	Active	San Francisco, CA, USA	15	Tarush Agarwal, Shashij Gupta, Sidhant Kabra	Reveal
CTGT	F24	CTGT safeguards against reputational risk from GenAI across your org	Active	San Francisco, CA, USA	7	Cyril Gorlla, Trevor Tuttle	Reveal
CTGT	F24	The deterministic layer for frontier intelligence	Active	San Francisco, CA, USA	10	Cyril Gorlla, Trevor Tuttle	Reveal
Curo	F24	Electric fleets park and charge anywhere with Curo	Active	San Francisco, CA, USA	6	Kieran White	Reveal
Curo	F24	Electric fleets park and charge anywhere with Curo	Active	San Francisco, CA, USA	6	Kieran White, Andrew Porter	Reveal
Diffusion Studio	F24	Turn your agent into a professional video editor	Active	San Francisco, CA, USA; Remote	2	Konstantin Paulus	Reveal
Durate	F24	Automated physician scheduling	Active	San Francisco, CA, USA	2	Michael Mounajjed, Benjamin Liu	Reveal
Durate	F24	Automated physician scheduling	Active	San Francisco, CA, USA	2	Michael Mounajjed, Benjamin Liu	Reveal
Ember	F24	AI RCM. A/R Analysis in 3 days or less. Reduce claim denials by 55%.	Active	San Francisco, CA, USA	10	Charlene Wang, Warren Wang	Reveal
Ember	F24	AI RCM. Increase net revenue by 16%.	Active	San Francisco, CA, USA	25	Charlene Wang, Warren Wang	Reveal
Forerunner AI	F24	AI that gets aircraft flying faster	Active	San Francisco, CA, USA	2	Yash Kadadi, Will Nida	Reveal
Fresco	F24	AI copilot for construction estimators	Active	San Francisco, CA, USA	2	Arvind Veluvali, Akhil Gupta	Reveal
Friday	F24	The AI Assistant for Gmail	Active	San Francisco, CA, USA	1	Allen Naliath	Reveal
FutureClinic	F24	Personal doctors through chat	Active	San Francisco, CA, USA	4	Riyan Moussaoui, Nabil Belahouane, Hassan Mirza, Usama Syed	Reveal
Gait	F24	Building Dev Infra for AI Software Engineers	Inactive	San Francisco, CA, USA	2	Alex Hsia, Kyle Li	Reveal