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

Location

YC Company Directory

50 companies

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Company	Batch	Description	Status	Location	Team	Founders	Reveal
Evidently AI	S21	Open-source monitoring for machine learning models	Active	San Francisco, CA, USA	2	Elena Samuylova, Emeli Dral	Reveal
Exa	S21	Web search rebuilt for LLMs	Active	San Francisco, CA, USA	22	William Bryk, Jeffrey Wang	Reveal
Filta	S21	The Face Filter NFT Marketplace	Active	San Francisco, CA, USA	3	Chris Horne	Reveal
FirstQuadrant	S21	Sales AI that helps revenue teams move faster and close more deals.	Inactive	San Francisco, CA, USA	2	Carlo Badini, Anand Chowdhary	Reveal
Fitia	S21	Automated Meal Planner & Nutrition Tracking	Active	San Francisco, CA, USA	26	Piero Linares, Ulises Olave	Reveal
Govly	S21	The #1 Market Network for Government Contractors.	Active	San Francisco, CA, USA	30	Michael Weiland, Nick Weiland, Jon Wright	Reveal
Hyperbrowser	S21	Web infra for AI agents	Active	San Francisco, CA, USA	4	Shri Sukhani, Akshay Shekhawat	Reveal
Hyperseed	S21	Zapier for billing	Inactive	San Francisco, CA, USA	3	Hootan Mahallati, Georg Untersalmberger	Reveal
Infer	S21	Personalized AI Voice Agents for lead qualification for insurance &…	Active	San Francisco Bay Trail, San Mateo, CA, USA	3	Suneel Matham, Vaibhav Saxena	Reveal
Jestor	S21	Jestor is a no-code platform for creating custom business tools.	Active	San Francisco, CA, USA	9	Bruno Bannach	Reveal
Jupe	S21	Just add land	Inactive	San Francisco, CA, USA	7	Jeff Wilson aka Professor Dumpster, Antonio Gonzalez	Reveal
Keyri	S21	Secure fraud prevention and authentication platform for developers	Acquired	San Francisco, CA, USA	5	Zain Azeem, Grant La Count, Saif Malik	Reveal
Legion Health	S21	AI-native psychiatry, built for scale and covered by insurance	Active	San Francisco, CA, USA	11	Yash Patel, Arthur MacWaters, Daniel Wilson	Reveal
Level	S21	Fast and simple fintech financing	Acquired	San Francisco, CA, USA	0	Vladimir Korshin, Molly Hogan, Asa Schachar	Reveal
Levro	S21	Multicurrency account & international payments for businesses	Active	San Francisco, CA, USA	12	Cathy Han, Abeer Agrawal	Reveal
LootRush	S21	A safe and friendly way to play crypto games.	Active	San Francisco, CA, USA	—	Anderson Ferminiano	Reveal
Mach9	S21	The Fastest Tool for Automating Geospatial Production	Active	San Francisco, CA, USA	15	Alexander Baikovitz, Haowen Shi, Joshua Spisak	Reveal
Mailmodo	S21	No-code email marketing platform to send forms & widgets within emails	Active	San Francisco, CA, USA	70	Aquibur Rahman, Apurv Gupta	Reveal
MarqVision	S21	IP operating software for brands and content companies	Active	San Francisco, CA, USA	200	Mark Lee	Reveal
Medium Biosciences	S21	AI-designed Protein Therapeutics	Active	San Francisco, CA, USA	6	Adil Yusuf, Mohamed Hassan Kane	Reveal
Mentum	S21	AI-Powered Assistant for Procurement and Strategic Sourcing	Acquired	San Francisco, CA, USA	2	Gus Trigos	Reveal
Mindstate Design Labs	S21	Clinical-stage AI neuroengineering platform	Active	San Francisco, CA, USA	7	Dillan DiNardo, Tom Ray	Reveal
Momo Medical	S21	We help nurses in nursing homes to be 30% more effective	Active	San Francisco, CA, USA	10	Menno Gravemaker	Reveal
Nash	S21	Nash is the digital logistics infrastructure for commerce	Active	San Francisco, CA, USA	40	Mahmoud Ghulman, Aziz Alghunaim	Reveal
Nash	S21	Nash is the digital logistics infrastructure for commerce	Active	San Francisco, CA, USA	40	Mahmoud Ghulman, Aziz Alghunaim	Reveal
OneSchema	S21	Automate CSV & PDF workflows with AI	Active	San Francisco, CA, USA	25	Andrew Luo	Reveal
Onsite Pro	S21	Revolutionizing digital selling within HVAC	Inactive	San Francisco, CA, USA	4	Sam Steyer, Gautam Jayaraman	Reveal
Openlayer	S21	The fastest way to ship airtight AI	Active	San Francisco, CA, USA	19	Gabriel Bayomi Kalejaiye, Vikas Nair, Rishab Ramanathan	Reveal
Patterns	S21	Next-Gen Financial Analysis and Reporting with AI Agents	Active	San Francisco, CA, USA	2	Chris Stanley	Reveal
Phykos	S21	Growing seaweed to stabilize the climate.	Active	San Francisco, CA, USA	2	Nico Julian, Jeff Zerger	Reveal
Potion	S21	AI for product formulation	Active	San Francisco, CA, USA	7	Yahya Syed, Hejab Malik, Alex Stec	Reveal
Replo	S21	Sell anything	Active	San Francisco, CA, USA	20	Yuxin Zhu	Reveal
Rinse	S21	We're building the One Medical for dental	Active	San Francisco, CA, USA	6	Casey Harlin	Reveal
Rootly	S21	AI-native on-call and incident response carefully crafted to help…	Active	San Francisco, CA, USA	75	Quentin Rousseau, JJ Tang	Reveal
SafeBeat	S21	Guiding cardiac therapeutics - all from your phone	Active	San Francisco, CA, USA	9	Rachita Navara	Reveal
Satsuma	S21	Reliable blockchain indexing & querying for web3 engineering teams.	Acquired	San Francisco, CA, USA	5	Jonathan Kau, Dan Li	Reveal
Sentiyen	S21	Conversational AI assistants using your knowledge	Active	San Francisco, CA, USA	2	Alex Perelman, Nathan Shinder	Reveal
Sequin	S21	Sequin is building AI Voice Agents to automate collections calls for…	Active	San Francisco, CA, USA	2	Vrinda Gupta, Mark Thomas	Reveal
Shimmer	S21	1:1 ADHD coaching, 5-10X More affordable than alternatives	Active	San Francisco, CA, USA	9	Christal Wang, Vikram Sreedhar	Reveal
Slash	S21	Business banking that understands your industry's unique challenges	Active	San Francisco, CA, USA	35	Victor Cardenas, Kevin Bai	Reveal
Slope	S21	The B2B Payments Platform	Active	San Francisco, CA, USA	16	Lawrence Lin Murata, Alice Deng	Reveal
Stardex	S21	AI native ATS + CRM for executive search firms	Active	San Francisco, CA, USA	3	Sanket Chauhan, Pranav Badami	Reveal
Sully.ai	S21	Autonomous team of AI agents that runs the entire hospital operations	Active	San Francisco, CA, USA	49	Ahmed Omar, Ahmed Nasser	Reveal
Synder	S21	Easy accounting for e-commerce	Active	San Francisco, CA, USA	—	Michael Astreiko, Ilya Kisel	Reveal
Tavus	S21	Building the human layer of AI	Active	San Francisco, CA, USA	40	Hassaan Raza, Quinn Favret	Reveal
Telivy	S21	Automate your cyber security risk assessments	Acquired	San Francisco, CA, USA	6	Naren Sathiya	Reveal
Telmai	S21	Automated data observability and quality for Data Lake	Active	San Francisco, CA, USA	12	Mona Rakibe, Maxim Lukichev	Reveal
testRigor	S21	Executable specifications in English for test automation	Active	San Francisco, CA, USA	25	Artem Golubev, Enzo Biancato	Reveal
TrackChain	S21	AI-native logistics OS for autonomous freight execution	Active	San Francisco, CA, USA	20	Eduardo Narvaez, Hugo Alvarez	Reveal
Varos	S21	AI Business Analysts to gather requirements and optimize processes	Active	San Francisco, CA, USA	9	Yarden Shaked, Lior Chen, Gil Shaked	Reveal