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
Vector Legal	W26	A premier AI-native law firm & legal operating system for Startups.	Active	San Francisco, CA, USA	5	Mitch Duncombe, Keenan Venuti	Reveal
Vela	W26	The AI Scheduling Assistant that truly knows you.	Active	San Francisco, CA, USA	4	Gobhanu Sasankar Korisepati, Saatvik Suryajit Korisepati	Reveal
Vela	W26	AI Recruiting Coordinator for Executive Search	Active	San Francisco, CA, USA	2	Gobhanu Sasankar Korisepati, Saatvik Suryajit Korisepati, Gobhanu Korisepati	Reveal
Velum Labs	W26	The OS for data quality across any stack	Active	San Francisco, CA, USA	2	Benjamin Muñoz-Cerro, Alen Rubilar-Muñoz	Reveal
Velum Labs	W26	Firewall that controls access to information across AI and humans	Active	San Francisco, CA, USA	2	Benjamin Muñoz-Cerro, Alen Rubilar-Muñoz	Reveal
Ventura	W26	AI Workforce for Distributors and Manufacturers	Active	San Francisco, CA, USA	2	Swen Koller, Jack Collins	Reveal
Verdex	W26	AI Verification for Insurance	Active	San Francisco, CA, USA	2	Evan Rankin, Jad Bousselham	Reveal
Verdex	W26	Asset Intelligence for Farmland	Active	San Francisco, CA, USA	2	Jad Bousselham, Evan Rankin	Reveal
Veriad	W26	AI compliance officers	Active	San Francisco, CA, USA	2	Rohan Mahendraker, Anton Muratov	Reveal
Visibl Semiconductors	W26	Custom silicon for power electronics	Active	San Francisco, CA, USA	3	Bryce Neil, Jordon Kashanchi	Reveal
Voltair	W26	Autonomous Drones for Earth Observation	Active	San Francisco, CA, USA	5	Ronan Nopp, Hayden Gosch, Avi Gotskind, Warren Weissbluth	Reveal
Wideframe	W26	AI coworker for video editors to ship more video faster	Active	San Francisco, CA, USA	2	Daniel Pearson, Zachary Kim	Reveal
Zatanna	W26	Turning all software into agent-first APIs	Active	San Francisco, CA, USA	2	Alex Blackwell, Tarun Vedula	Reveal
Zatanna	W26	Adaptive Healthcare Admin Agents	Active	San Francisco, CA, USA	3	Alex Blackwell, Rithvik Vanga, Tarun Vedula	Reveal
6thSense	S26	Nervous System for Physical AI	Active	San Francisco, CA, USA	4	James Baek, Ronak Agarwal, Alex Hyungwoo Noh, Matt Wulff	Reveal
Agent FM	S26	One group chat to hear and steer your coding agents.	Active	San Francisco, CA, USA	2	Aniket Deshpande, Mugdhaa Patankar	Reveal
Agnost AI	S26	Product Analytics for Conversational Agents	Active	San Francisco, CA, USA	2	Shubham Palriwala, Parth Ajmera	Reveal
Archal	S26	API sandboxes, built for AI agents	Active	San Francisco, CA, USA	2	Noah Song, Aidan Tiruvan	Reveal
Atlia	S26	The AI-native property management company	Active	San Francisco, CA, USA	2	Edmond Niu, Shaan Yadav	Reveal
Buildbox	S26	Agent analytics for real user outcomes	Active	San Francisco, CA, USA	2	Trishala Jain, Mark Nour	Reveal
COACH	S26	The AI Coach for in person sales reps.	Active	San Francisco, CA, USA	4	Mathieu Perez, Thomas Perez, Nicolas Sebag	Reveal
Control Seat	S26	Predictive maintenance on your plant data and sensors.	Active	San Francisco, CA, USA	2	Jack Grodnick, Warren Shepard	Reveal
CueBench	S26	RL post-training for science reasoning and performance engineering	Active	San Francisco, CA, USA	3	Dillon Mehta, Neel Gadde, Rishan Hemrajani	Reveal
Daqstra	S26	AI-native test infrastructure to accelerate hardware companies.	Active	San Francisco, CA, USA	3	Darell Chua, Anchit Kumar	Reveal
DeepReach Inc.	S26	Real-world data network for robots & world models	Active	San Francisco, CA, USA	6	Chris Liu	Reveal
Denta	S26	Dental Insurance	Active	San Francisco, CA, USA	1	Jack Beecher	Reveal
Gamgee	S26	Scalable Personalised Cancer Treatment	Active	San Francisco, CA, USA; Remote	2	Paul Conyngham, Paul Steven Conyngham	Reveal
Greypoint Industries	S26	Building drone swarms that hunt drone operators	Active	San Francisco, CA, USA	4	Darcy Zhang, Nic Chu, Jordan Khoo, Steven Xu	Reveal
hardware intelligence	S26	AI tools for the chips your AI runs on	Active	San Francisco, CA, USA	2	Athreya Anand, Rishov Sarkar	Reveal
HyperProbe	S26	The runtime data layer for agents to monitor and debug apps	Active	San Francisco, CA, USA	8	Shailendra Singh, Karan Raina	Reveal
IMPACT Drones	S26	Air Defense as a Service for Civilian Infrastructure.	Active	San Francisco, CA, USA	2	Jasper Lortije, Alessandro Fiume	Reveal
Induction Labs	S26	Building intellectually curious AI	Active	San Francisco, CA, USA	2	Jonathan Li, David Li, Jeffrey Li	Reveal
Inkbox	S26	The identity and communication layer for AI agents	Active	San Francisco, CA, USA	3	Ray Liao, Dima Vremenko, Alex Wilcox	Reveal
LATO	S26	Agentic deal diligence for institutional investors	Active	San Francisco, CA, USA	2	Tien Chu, Tymek Staniszewski	Reveal
LemonLime	S26	Fully automated GTM for small business	Active	San Francisco, CA, USA	5	Jordan Zietz, Daniela Muñoz	Reveal
Libra Robotics	S26	Robotic crews for large-scale infrastructure construction	Active	San Francisco, CA, USA	2	Jermaine Zhao, Yaojing Huang	Reveal
Marengo	S26	AI-Native Engineering Firm designing Data Centers	Active	San Francisco, CA, USA	5	Emil Ares, Gad Marconi	Reveal
Mentlio	S26	Engineering Intelligence and Token Optimization for the AI-Coding Era	Active	San Francisco, CA, USA	—	Ashank Shah, Ahmet Demirbas	Reveal
Nebula Security	S26	Autonomous AI defense system for cyber attack	Active	San Francisco, CA, USA; Remote	4	Eten Zou, Yuan Tan, Frank Wu, Xiaochuan Yu	Reveal
Nex	S26	Claude Cowork for high volume GTM workflows	Active	San Francisco, CA, USA	5	Najmuzzaman (Nazz) Mohammad, Francisco Dias	Reveal
OneTriangle	S26	The cheapest, fastest lightweight inference.	Active	San Francisco, CA, USA	4	Hannah Chung, Medha Venkatapathy	Reveal
Ooak Data	S26	We turn company data into training data	Active	San Francisco, CA, USA	5	Pierre-Louis Vouteau, Thomas Aubry	Reveal
Perceptron ML	S26	We make law firms AI-native.	Active	San Francisco, CA, USA	2	Michael Marcotte, Peyton Marcotte	Reveal
Poth Labs	S26	Conversational surveys that replace Qualtrics for large brands	Active	San Francisco, CA, USA	2	Mojmir Horvath, Matthew Wong	Reveal
Prescience, Inc.	S26	Health insurance for the age of abundant intelligence.	Active	San Francisco, CA, USA	2	Aditya Jain, Rishab Jain	Reveal
Prodigy Research	S26	Training the world's best foundation model for quantitative finance.	Active	San Francisco, CA, USA	2	Michael Wang, Yuhua Wang	Reveal
Rasyn	S26	Making chemicals 100,000x faster	Active	San Francisco, CA, USA	3	Ansh Tiwari, Ayush Chauhan, Daood Hashmi	Reveal
rekursiv.ai	S26	Scale AI scientists whose own breakthroughs accelerate the next.	Active	San Francisco, CA, USA	2	Joshua Dillon, Dan Kondratyuk	Reveal
screenpipe	S26	Turn your company's computer work into AI agents.	Active	San Francisco, CA, USA	2	Louis Beaumont	Reveal
Sidekick	S26	AI agent that handles frontline operations over text	Active	San Francisco, CA, USA	1	Justin So	Reveal