San Francisco

YC Companies in San Francisco

1,500 Y Combinator startups based in San Francisco with verified founder contacts and company data.

1,500

Companies

San Francisco

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YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Rickshaw	W14	Same day local delivery, via API. Currently operating in SF.	Acquired	San Francisco, CA, USA	11	Divya Bhat, Gautam Jayaraman	Reveal
Theorem	W14	The mission of Theorem is to make credit safe and available. We use…	Acquired	San Francisco, CA, USA	34	Abeer Agrawal, Hugh Edmundson	Reveal
Unbabel	W14	AI-powered Language Operations platform	Acquired	San Francisco, CA, USA	350	Vasco Pedro, João Graça, Bruno Prezado Silva, Hugo Silva	Reveal
Coin	W13	A mobile wallet that allows you to pay everywhere credit cards are…	Acquired	San Francisco, CA, USA	11	Kanishk Parashar, Karthik Balakrishnan	Reveal
FlightCar	W13	FlightCar is the Airbnb of Car Rentals at Airports. We allow people…	Inactive	San Francisco, CA, USA	51	Rujul Zaparde, Shri Ganeshram, Kevin Petrovic	Reveal
MedXT	W13	Radiology in the cloud. X-rays, CAT scans, MRI's, and…	Acquired	San Francisco, CA, USA	2	Reshma Khilnani	Reveal
Teespring	W13	IMPORTANT: The original YC founders are no longer involved with this…	Acquired	San Francisco, CA, USA	201	Walker Williams, Evan Stites Clayton	Reveal
Wefunder	W13	We're Robinhood for pre-IPO startups. Everyone can invest $100.	Active	San Francisco, CA, USA	35	Nick Tommarello, Greg Belote	Reveal
Amplitude	W12	Digital Analytics Platform	Public	San Francisco, CA, USA	750	Spenser Skates, Curtis Liu	Reveal
Exec	W12	Exec is a house cleaning service that users can book from their…	Acquired	San Francisco, CA, USA	11	Justin Kan, Amir Ghazvinian, Daniel Kan	Reveal
Fond	W12	Rewards and recognition SaaS for HR leaders	Acquired	San Francisco, CA, USA	51	Taro Fukuyama, Sunny Tsang 🌞	Reveal
Gusto	W12	Provides growing businesses with everything to take care of their team	Active	San Francisco, CA, USA	2400	Josh Reeves, Edward Kim, Tomer London	Reveal
Jellyfish Art	W12	—	Inactive	San Francisco, CA, USA	2	Alex Andon	Reveal
LendUp	W12	LendUp is a socially responsible company on a mission to redefine…	Inactive	San Francisco, CA, USA	201	Sasha Orloff, Jacob Rosenberg	Reveal
Loom	W12	Cloud storage for photos and videos (acquired by Dropbox).	Acquired	San Francisco, CA, USA	2	Jan Senderek, Nicolas Bös, Daniel Wagner, Philipp Wein	Reveal
MyVR	W12	The open platform for the vacation rental industry.	Acquired	San Francisco, CA, USA	15	Jonathan Murray, Markus Nordvik, Mike Stachowiak	Reveal
PlanGrid	W12	Mobile applications for the construction industry.	Acquired	San Francisco, CA, USA	355	Tracy Young, Ralph Gootee, Ryan Sutton-Gee	Reveal
Rescale	W12	High Performance Computing Built for the Cloud	Active	San Francisco, CA, USA	250	Joris Poort, Adam McKenzie	Reveal
Socialcam	W12	The easiest way to share videos with friends and family.	Acquired	San Francisco, CA, USA	0	Guillaume Luccisano, Ammon Bartram	Reveal
Tilt	W12	Mobile crowdfunding: The easiest way to collect, fundraise, and sell…	Acquired	San Francisco, CA, USA	51	James Beshara, Khaled Hussein	Reveal
Inporia	W11	Fashion shopping email list.	Inactive	San Francisco, CA, USA	11	Ryan Junee, Max Sky (CEO, Vault12)	Reveal
Mailgun	W11	Email API service.	Acquired	San Francisco, CA, USA	51	Ev Kontsevoy, Taylor Wakefield	Reveal
OrderAhead	W11	Order ahead for pickup	Acquired	San Francisco, CA, USA	50	Jeffrey Byun, Henry A. Lee, Ruddick Lawrence	Reveal
Creative Market	W10	Marketplace for graphic design assets	Acquired	San Francisco, CA, USA	—	Darius \, Aaron Epstein, Chris Williams	Reveal
Crocodoc	W10	Embed PDFs, PowerPoints, and other documents into web and mobile apps	Acquired	San Francisco, CA, USA	0	Ryan Damico, Peter Lai, Matt Long, Bennett Rogers	Reveal
LaunchHear	W10	LaunchHear was a startup attempting to make PR scale in the same way…	Inactive	San Francisco, CA, USA	2	Alex Krupp, Allan Young	Reveal
Movity	W10	Real estate data visualization. Sold to Trulia Dec…	Acquired	San Francisco, CA, USA	2	Sha Hwang, Eric Wu	Reveal
Airbnb	W09	Book accommodations around the world.	Public	San Francisco, CA, USA	6132	Brian Chesky, Nathan Blecharczyk, Joe Gebbia	Reveal
Heroku	W08	Enabling developers to build and run applications in the cloud.	Acquired	San Francisco, CA, USA	300	Orion Henry, James Lindenbaum, Adam Wiggins	Reveal
Ninite	W08	Simple third-party app patching and deployment for Windows.	Active	San Francisco, CA, USA	2	Sascha Kuzins, Patrick Swieskowski	Reveal
Twitch	W07	A global community creating the future of live entertainment.	Acquired	San Francisco, CA, USA	2000	Justin Kan, Emmett Shear, Kyle Vogt	Reveal
Weebly	W07	Build a free website that grows with your business.	Acquired	San Francisco, CA, USA	201	David Rusenko, Chris Fanini, Dan Veltri	Reveal
Acrely	S25	Enterprise Voice Agents	Active	San Francisco, CA, USA	6	Alek Stefanov, Derek Armfield	Reveal
Adaptional	S25	AI underwriting for insurance	Active	San Francisco, CA, USA	—	Kevin Cox, Suril Kantaria	Reveal
AgentMail	S25	Email Inboxes for AI Agents	Active	San Francisco, CA, USA	6	Haakam Aujla, Michael Kim, Adi Singh	Reveal
April	S25	Voice AI Executive Assistant	Active	San Francisco, CA, USA	2	Neha Suresh, Akash Thakur	Reveal
Astor	S25	AI advisor for retail investors	Active	San Francisco, CA, USA	5	Bruno Koba, Daniel Tulha Hochstetler	Reveal
b12 Labs	S25	Chemical Copilot for Pharma and Biotech	Active	San Francisco, CA, USA	2	Zlatko Jončev, Andres Bran	Reveal
Bizzy AI	S25	Bizzy works 24/7 so you never miss a lead.	Active	San Francisco, CA, USA	—	Rithvik Gabri, Ansh Sheth	Reveal
Blank Bio	S25	RNA-based AI for better drugs and smarter clinical trials.	Active	San Francisco, CA, USA	3	Jonny Hsu, Philip Fradkin, Ian Shi	Reveal
BootLoop	S25	Firmware in minutes, not months - rigorously tested on real hardware	Active	San Francisco, CA, USA	3	Noah Pacik-Nelson, Chris Markus	Reveal
burnt	S25	Agentic Operating System for Food Supply Chain	Active	San Francisco, CA, USA	3	Joseph Jacob, Rhea Karimpanal, Chandru Shanumugasundaram	Reveal
Cactus	S25	Low-latency AI engine for mobile devices & wearables	Active	San Francisco, CA, USA	8	Roman Shemet, Henry Ndubuaku	Reveal
Candytrail	S25	AI agents for in-person sales teams, starting with coaching	Active	San Francisco, CA, USA	2	Aditya Mahna, Ayush Mahna	Reveal
Certus AI	S25	Replacing the restaurant phone line with Voice AI	Active	San Francisco, CA, USA	3	Gurveer Singh, Adam Gamieldien, Isaac Nichols	Reveal
Clodo	S25	Vibe GTM. Execute your outbound ideas with just a prompt	Active	San Francisco, CA, USA	2	Sid Rajaram, Rithvik Chuppala	Reveal
Closera	S25	AI employees for commercial real estate	Active	San Francisco, CA, USA	2	Anmol Tukrel, Chinmay Patel	Reveal
cocreate	S25	AI-native video production software that automates post-production	Active	San Francisco, CA, USA	4	Tamish Pulappadi, Archish Arun, Sid Yu	Reveal
ContextFort	S25	Visibility and Controls for Browser Agents	Active	San Francisco, CA, USA	2	Ashwin Ramachandran	Reveal
Cyberdesk	S25	Self learning computer use agent for developers	Active	San Francisco, CA, USA	2	Mahmoud Al-Madi, Alan Duong	Reveal