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

Export All

Company	Batch	Description	Status	Location	Team	Founders	Reveal
Perfectly	W26	The AI-native Recruiting Operating System	Active	San Francisco, CA, USA	3	Victor Luo, Zhuang (Gary) Luo	Reveal
Piris Labs	W26	The Networking Layer of AI	Active	San Francisco, CA, USA	8	Ali Khalatpour, Keyvan Moghadam	Reveal
Pocket	W26	Take Notes in the Real World	Active	San Francisco, CA, USA	15	Akshay Narisetti, Gabriel Dymowski	Reveal
Pollen	W26	AI Agents for Customer Success	Active	San Francisco, CA, USA	3	Aldrin Ong, Noah Yin, Jeffrey Yum	Reveal
Pollen	W26	AI agents that automate customer success	Active	San Francisco, CA, USA	3	Noah Yin, Aldrin Ong, Jeffrey Yum	Reveal
Pollinate	W26	AI Agents for the supply chain.	Active	San Francisco, CA, USA	2	Corey Berther, Adeep Mitra	Reveal
Polymath	W26	Simulation environments to train & evaluate long-horizon AI agents	Active	San Francisco, CA, USA	6	Dylan Ma, Naren Yenuganti	Reveal
Polymorph	W26	Building secure polymorphic apps	Active	San Francisco, CA, USA	4	Andrew Sy	Reveal
Prana	W26	An AI primary care doctor in your pocket	Active	San Francisco, CA, USA	4	Meer Patel, Sanjit Menon, Vishvam Rawal	Reveal
Protent	W26	Real time intelligence for law enforcement & security teams.	Active	San Francisco, CA, USA	2	Srihan Balaji, Abhisheik Sharma	Reveal
Proximitty	W26	Autonomous loan servicing and collections	Active	San Francisco, CA, USA	2	Wye Yew Ho, Zi Zhang	Reveal
Q2Q	W26	We help private equity teams find acquisition targets faster	Active	San Francisco, CA, USA	2	Brianna Lin, Claire Wu	Reveal
Q2Q	W26	We help private equity teams find acquisition targets faster	Inactive	San Francisco, CA, USA	2	Brianna Lin	Reveal
RamAIn	W26	Automate any UI task with natural language	Active	San Francisco, CA, USA	4	Shourya Vir Jain, Vansh Ramani	Reveal
Reframe	W26	AI-native, hardware procurement marketplace	Active	San Francisco, CA, USA	1	Bryan Zin	Reveal
Remix	W26	Social media content auto-generated with your existing data	Active	San Francisco, CA, USA	—	Sam Kaplan	Reveal
Remy AI	W26	Automating dexterous tasks in warehouses	Active	San Francisco, CA, USA	2	Oscar Brisset, Ben Kaye	Reveal
Return Signals	W26	AI luxury concierge for E-commerce brands	Active	San Francisco, CA, USA	2	Ilya Valmianski, Alejandro Zaniolo	Reveal
REV1	W26	Claude Code for Mechanical Engineers	Active	San Francisco, CA, USA	2	Alex Rivero, Louis Liu	Reveal
Ritivel	W26	AI-native platform for regulatory document submission	Active	San Francisco, CA, USA	3	Nirmit Arora, Gunin Gupta, Pavan Kalyan (a.k.a PK) Tankala	Reveal
RoboDock	W26	Robots that run autonomous depots for autonomous fleets.	Active	San Francisco, CA, USA	2	Celine Wang, Zinny Weli	Reveal
RoboDock	W26	Robots that run autonomous depots for autonomous fleets.	Active	San Francisco, CA, USA	4	Zinny Weli, Celine Wang	Reveal
Ruma Care	W26	The operations stack for biologic infusion clinics	Active	San Francisco, CA, USA	5	Meng Fei Shen, Christina Huang	Reveal
RunAnywhere	W26	The default way of running on-device AI at Scale	Active	San Francisco, CA, USA	5	Sanchit Monga, Shubham Malhotra	Reveal
Salus	W26	Guardrails to validate your agent's actions before they execute	Active	San Francisco, CA, USA	2	Vedant Singh, Kevin Pan	Reveal
Salus	W26	Guardrails to validate your agent's actions before they execute	Active	San Francisco, CA, USA	2	Kevin Pan, Vedant Singh	Reveal
Scout Out	W26	AI generated proposals for residential construction projects	Active	San Francisco, CA, USA	1	Nolan Rossi	Reveal
Sentrial	W26	Datadog for Agent Reliability	Active	San Francisco, CA, USA	2	Neel Sharma, Anay Shukla	Reveal
Shofo	W26	The World's Largest Video Library	Active	San Francisco, CA, USA	4	Braiden Dishman, Andre Braga, Alexzendor Misra	Reveal
SideKit	W26	One package to take your mobile app to production.	Active	San Francisco, CA, USA	2	Ethan Pronev, Ashish Selvaraj	Reveal
Signals	W26	iMessage revenue channel for DTC brands that brings customers back	Active	San Francisco, CA, USA	2	Ilya Valmianski, Alejandro Zaniolo	Reveal
Skillsync	W26	Move context across agents and teammates	Active	San Francisco, CA, USA	2	Narayana Aaditya Ganeshkumar, Nishant Joshi, Narayana Ganeshkumar	Reveal
Sonarly	W26	AI engineer to triage and fix your production alerts	Active	San Francisco, CA, USA	2	Dimittri Choudhury, Alexandre Klobb	Reveal
SpotPay	W26	Cross-border Personal Finance on Stablecoins	Active	San Francisco, CA, USA	2	Thomas Cesare-Herriau, Zsika Phillip	Reveal
SpotPay	W26	Stablecoin Global Bank Account	Active	San Francisco, CA, USA	2	Zsika Phillip, Thomas Cesare-Herriau	Reveal
Strand AI	W26	Curated multimodal datasets for biology AI	Active	San Francisco, CA, USA	2	Yue Dai, Oded Falik	Reveal
Synthetic Sciences	W26	Infrastructure for Autonomous Science	Active	San Francisco, CA, USA	2	Ishaan Gangwani, Aayam Bansal	Reveal
Tensol	W26	AI Employees for your Business, Powered by OpenClaw	Active	San Francisco, CA, USA	2	Oliviero Pinotti, Pratik Satija	Reveal
Terminal Use	W26	Vercel for background agents	Active	San Francisco, CA, USA	4	Filip Balucha, Stavros Filosidis, Vivek Raja	Reveal
Terminal Use	W26	AI-native transformation for operations-heavy companies	Active	San Francisco, CA, USA	4	Vivek Raja, Filip Balucha, Stavros Filosidis	Reveal
Terranox AI	W26	The first AI-powered uranium discovery company	Active	San Francisco, CA, USA	2	Jade Checlair, Leeav Lipton	Reveal
The Token Company	W26	Compression middleware that improves LLM outputs	Active	San Francisco, CA, USA	2	Otso Veisterä	Reveal
Traverse	W26	Research lab solving non-verifiable work	Active	San Francisco, CA, USA	1	Lance Yan	Reveal
Traverse	W26	Data research company building RL envs for non-deterministic work	Active	San Francisco, CA, USA	2	Lance Yan, Zachary Yu	Reveal
Travo	W26	We use AI to collect and analyze real estate data	Active	San Francisco, CA, USA	4	Clarence Chen, Alexander Calafiura, Michael Dalva, Ashwin Sriram	Reveal
Travo	W26	The brokerage that never sleeps	Active	San Francisco, CA, USA	4	Clarence Chen, Alexander Calafiura, Michael Dalva, Ashwin Sriram	Reveal
Unisson	W26	AI agents that automate B2B software implementation	Active	San Francisco, CA, USA	2	Varun Mathur, Tom Achache	Reveal
Unisson	W26	The AI product specialist for customer-facing teams	Active	San Francisco, CA, USA	2	Varun Mathur, Tom Achache	Reveal
Valence	W26	Unified prediction markets trading platform	Active	San Francisco, CA, USA	3	Neo Wang, Daniel Kasabov-Nouvion, Arthur Zhou	Reveal
Valgo	W26	Insurance risk layer for physical AI	Active	San Francisco, CA, USA	3	Robert Moss, Sydney Katz, Jon Qian	Reveal