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

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YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Stellon Labs	S25	Building tiny frontier AI models that run on edge devices	Active	San Francisco, CA, USA	2	Rohan Joshi, Divam Gupta	Reveal
Stormy	S25	Stormy runs the office so your crew can run the work.	Active	San Francisco, CA, USA	5	Robert Lukoszko, Robert Lukoshko	Reveal
Synthetic Society	S25	Synthetic Users to Simulate Real Users	Active	San Francisco, CA, USA	2	Kavan Doctor, Aaron Chew	Reveal
TectoAI	S25	A Platform for AI Governance	Active	San Francisco, CA, USA	2	Niosha Afsharikia, PhD, Roksana Baleshzar, Niosha Afsharikia	Reveal
TectoAI	S25	A Platform for AI Governance	Active	San Francisco, CA, USA	2	Niosha Afsharikia, PhD, Roksana Baleshzar	Reveal
Tesora	S25	Frontier AI for Actuaries	Active	San Francisco, CA, USA	5	Vivek Rao, Federico Reyes Gomez, Federico Reyes Gómez	Reveal
Theora	S25	Building medical school for AI Agents	Active	San Francisco, CA, USA	3	Larissa Tyagi	Reveal
The Prompting Company	S25	We help products get discovered & used by AI agents.	Active	San Francisco, CA, USA	7	Kevin Chandra, Michelle Marcelline, Albert Purnama, Albert Putra Purnama	Reveal
Topological	S25	Physics-based foundation models for CAD optimization.	Active	San Francisco, CA, USA	2	Nicole Ma, Zeyneb Kaya	Reveal
TraceRoot.AI	S25	Open source self-improving layer for AI agents	Active	San Francisco, CA, USA	3	Xinwei He	Reveal
truthsystems	S25	Automatically blocking risky behavior with real-time governance agents	Active	San Francisco, CA, USA	6	Alex Mac, Nam Nguyen	Reveal
truthsystems	S25	Automatically blocking risky behavior with real-time governance agents	Active	San Francisco, CA, USA	3	Alex Mac, Nam Nguyen	Reveal
Uplift AI	S25	Foundational Voice Models for regional languages	Active	San Francisco, CA, USA	3	Hammad Malik, Zaid Qureshi	Reveal
Veritus	S25	AI agents for the consumer lending industry	Active	San Francisco, CA, USA	10	Joshua March, David Schlesinger, Joseph Stein	Reveal
Veritus	S25	AI agents for the consumer lending industry	Active	San Francisco, CA, USA	10	Joshua March, David Schlesinger, Joseph Stein	Reveal
Verne Robotics	S25	AI models that teach robots new skills in hours	Active	San Francisco, CA, USA	7	Neil Nie, Aditya Jha	Reveal
VibeFlow	S25	AI content manager that grows your company's online presence	Active	San Francisco, CA, USA	3	Alessia Paccagnella, Elia Saquand	Reveal
Wafer	S25	AI that makes AI fast	Active	San Francisco, CA, USA	10	Emilio Andere, Steven Arellano	Reveal
Wafer	S25	AI that makes AI fast	Active	San Francisco, CA, USA	4	Emilio Andere, Steven Arellano	Reveal
Wayline	S25	AI voice for property managers	Active	San Francisco, CA, USA	5	Jason Okra, Eric Rowell	Reveal
Wedge	S25	Palantir for Healthcare AI Agents	Active	San Francisco, CA, USA	2	Devraj Gopal, Steven Segawa	Reveal
Wedge	S25	Palantir for Healthcare AI Agents	Active	San Francisco, CA, USA	2	Devraj Gopal, Steven Segawa	Reveal
AirCaps	F25	The AI copilot for in-person conversations.	Active	San Francisco, CA, USA	5	Madhav Lavakare, Nirbhay Narang	Reveal
Aleph Lab	F25	AI language buddy in the games kids love	Active	San Francisco, CA, USA	1	Han Nim (Joseph) Jang, Dan Han, Jaihee Kim	Reveal
AnswerThis	F25	End-to-end workspace to accelerate scientific discovery	Active	San Francisco, CA, USA	6	Ayush Garg, Ryan McCarroll	Reveal
Anto Biosciences	F25	A Foundation Model for Microbial Communities.	Active	San Francisco, CA, USA	4	Arvid E. Gollwitzer, David de Gruijl, Arvid E. Gollwitzer	Reveal
Anto Biosciences	F25	A Foundation Model for Microbial Communities.	Active	San Francisco, CA, USA	2	Arvid E. Gollwitzer, David Alexander de Gruijl	Reveal
Arcten	F25	We make any product AI-native in an afternoon	Active	San Francisco, CA, USA	2	Armeet Singh Jatyani, Michael Nguyen Jr	Reveal
Articulate	F25	Automatic Construction Drawing Clash Detection	Active	San Francisco, CA, USA	2	Milind Sagaram	Reveal
Aside	F25	The browser built to do real work for you	Active	San Francisco, CA, USA	5	Jun Kim, Chanhee Lee, Sanghun Lee	Reveal
Aside	F25	Live answer copilot for enterprise tech sales	Active	San Francisco, CA, USA	3	Jun Kim, Chanhee Lee, Sanghun Lee	Reveal
AtlasGrid	F25	Accelerate Product Iteration	Active	San Francisco, CA, USA; Remote	6	Oleg Kostour, Aram Aghababyan, Anton Krutiansky	Reveal
Automax.ai	F25	AI native real-estate appraisal firm	Active	San Francisco, CA, USA	4	Humza Ahmed	Reveal
Bear	F25	Marketing Stack for AI Agents	Active	San Francisco, CA, USA	2	Janak Sunil, Siddhant Paliwal	Reveal
Bluma	F25	AI short form content engine	Active	San Francisco, CA, USA	2	Alisa Wu, Stephen Ni	Reveal
Bluma	F25	Canva for short-form video ads	Active	San Francisco, CA, USA	2	Alisa Wu, Stephen Ni	Reveal
Boom AI	F25	AI growth team for e-commerce brands	Active	San Francisco, CA, USA	3	Juan Casian, Sergio Garcia, Jose Toscano	Reveal
Bravi	F25	The AI operating system powering home services businesses	Active	San Francisco, CA, USA	2	Anas Bouassami, Pierre-Habte Nouvellon	Reveal
Casey	F25	Casey automates workflows for the insurance industry	Active	San Francisco, CA, USA	3	Maximilian Thoelen, Nico Hänggi, Pascal Küng	Reveal
Clad Labs	F25	the brainrot ide	Active	San Francisco, CA, USA	2	Richard Wang, Kevin Le	Reveal
Claybird	F25	The full-stack AI ad company	Active	San Francisco, CA, USA	4	Saad Jamal, Abdullah Nauman	Reveal
Clicks	F25	AI agents for your healthcare back-office operations.	Active	San Francisco, CA, USA	8	Dominik Helmreich, Oliver Knapp	Reveal
Compyle	F25	The coding agent that actually collaborates with you	Active	San Francisco, CA, USA	2	Jonathan Miranda, Mark Nazzaro	Reveal
Cortex AI	F25	Large-scale real-world robot & human data for embodied AI	Active	San Francisco, CA, USA	3	Lucas Ngoo	Reveal
Cranston AI	F25	Full Stack AI Accounting Firm	Active	San Francisco, CA, USA	2	Sean O'Bannon, Max Minsker	Reveal
Dari	F25	An API to build the most reliable browser use agents	Active	San Francisco, CA, USA	2	Avyay Varadarajan, Benjamin Hong	Reveal
dari.dev	F25	The Routing Layer for AI Agents	Active	San Francisco, CA, USA	2	Avyay Varadarajan, Benjamin Hong	Reveal
Deeptrace	F25	AI agents for on-call	Active	San Francisco, CA, USA	4	Andy Lee, Sri Somasundaram	Reveal
Digipals	F25	The future of Social in the age of AI	Active	San Francisco, CA, USA	3	Peggy Wang, Mathew Matakovic	Reveal
Digipals	F25	The future of Social in the age of AI	Active	San Francisco, CA, USA	3	Peggy Wang, Mathew Matakovic	Reveal