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	Site	Founders	Reveal
datafruit	S25	AI DevOps Engineer	Active	San Francisco, CA, USA	4		Venkat Arun, Abhiram Chennupati, Tom Jeong, Nick Papciak	Reveal
Dedalus Labs	S25	Compute substrate for AI agents	Active	San Francisco, CA, USA	10		Cathy Di, Windsor Nguyen, Catherine Di	Reveal
Dedalus Labs	S25	Connect any LLM to any MCP tools and create complex agents in minutes.	Active	San Francisco, CA, USA	9		Catherine Di, Windsor Nguyen	Reveal
DeepAware AI	S25	Help AI data centers unlock more compute and become more efficient	Active	San Francisco, CA, USA	2		Jerry Huang, Stela Tong	Reveal
DeepAware AI	S25	Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF.	Active	San Francisco, CA, USA	4		Jerry Huang, Stela Tong	Reveal
DeepGrove	S25	Frontier Intelligence. On Any Device.	Active	San Francisco, CA, USA	3		Shayaan Emran, Edward Zhang	Reveal
Design Arena	S25	World's largest crowdsourced benchmark for AI-generated design	Active	San Francisco, CA, USA	3		Grace Li, Kamryn Ohly	Reveal
Design Arena	S25	World's largest crowdsourced benchmark for AI-generated design	Active	San Francisco, CA, USA	3		Grace Li, Kamryn Ohly	Reveal
Doe	S25	The boring stuff, handled. Everything else, supercharged.	Active	San Francisco, CA, USA	4		Adrian Barbir, Richard Ou	Reveal
Duranium	S25	Reshoring critical metal production	Active	San Francisco, CA, USA	12		Brenden Prins-McKinney, Berkley Noble	Reveal
EffiGov	S25	The AI OS for Cities	Active	San Francisco, CA, USA	3		Aubteen Pour-Biazar, Aden Clemente	Reveal
Embedder	S25	Cursor for Firmware	Active	San Francisco, CA, USA	4		Ethan Gibbs, Bob Wei	Reveal
Embedder	S25	Hardware-Aware AI for Embedded Software Development	Active	San Francisco, CA, USA	6		Ethan Gibbs, Bob Wei	Reveal
Epicenter	S25	ChatGPT's memory feature in an open, portable format	Active	San Francisco, CA, USA	1		Braden Wong	Reveal
F4 Industries	S25	The GD&T Analysis Platform for Engineering Drawings	Active	San Francisco, CA, USA	5		Paul Shin, Aidan Cantu	Reveal
Flai	S25	We Bring Customers to Your Dealership	Active	San Francisco, CA, USA	23		Ari Polakof, Juan Alzugaray, Alen Polakof	Reveal
Floot	S25	The app platform inside Claude and ChatGPT.	Active	San Francisco, CA, USA	4		Yujian Yao, Edward Look	Reveal
Fluidize	S25	Helping scientists and engineers run experiments with AI.	Active	San Francisco, CA, USA	3		Henry Bae, Alex Fleury, Jamin Liu	Reveal
Flywheel AI	S25	Waymo for excavators	Active	San Francisco, CA, USA	2		Jash Mota	Reveal
Freya	S25	Voice AI for Enterprises	Active	San Francisco, CA, USA	14		Tunga Bayrak, Tomas Nepala	Reveal
Frizzle	S25	AI Grading for Teachers	Active	San Francisco, CA, USA	2		Abhay Gupta, Shyam Sai	Reveal
Fulcrum	S25	The agentic debugger for AI systems	Active	San Francisco, CA, USA	2		Kaivalya Hariharan, Uzay Girit	Reveal
Golpo	S25	Create Whiteboard Explainer Videos with AI from a Prompt or Document	Active	San Francisco, CA, USA	7		Shraman Kar, Shreyas Kar	Reveal
GoRiff	S25	Cursor for music production	Active	San Francisco, CA, USA	2		Adith Reddi, Kenny Zhang	Reveal
Halluminate	S25	Data and RL environments to automate knowledge work	Active	San Francisco, CA, USA	5		Jerry Wu, Wyatt Marshall	Reveal
Humoniq	S25	AI-Native BPO for travel & transport	Active	San Francisco, CA, USA	5		Todd Sullivan, Will Weber	Reveal
Idler	S25	Hill-climb any benchmark, for any model, in any domain.	Active	San Francisco, CA, USA	12		Ivan Chub, Nalu Concepcion, Tony Goss	Reveal
Imprezia	S25	The World's First AI Ad Network.	Active	San Francisco, CA, USA	4		Bishesh Khadka	Reveal
Iron Grid	S25	Foundational models for risk and quality.	Active	San Francisco, CA, USA	2		Fern Morrison, Gabriele Pozzato	Reveal
Janet AI	S25	The AI-Native Jira	Active	San Francisco, CA, USA	2		Adhit Sankaran, William Barthell	Reveal
Kalinda	S25	Deep research for class action law firms	Active	San Francisco, CA, USA	2		Sayan Bhatia, Sohil Bhatia	Reveal
Kernel	S25	Crazy fast, open source infra for AI agents to use the Internet	Active	San Francisco, CA, USA	6		Catherine Jue, Rafael Garcia	Reveal
KERNEL	S25	Crazy fast, open source infra for AI agents to use the Internet	Active	San Francisco, CA, USA	6		Catherine Jue, Rafael Garcia	Reveal
KE Kestroll	S25	—	Active	San Francisco, CA, USA	2	—	Benjamin Skinner, Tom Yang	Reveal
Knowlify	S25	Convert textual content into explainer videos in < 15s	Active	San Francisco, CA, USA	4		Ritam Rana, Jonathan Maynard, Arjun Talati, Ritvik Varada	Reveal
Knowlify	S25	The AI Explainer Video Maker	Active	San Francisco, CA, USA	6		Ritam Rana, Jonathan Maynard, Arjun Talati, Ritvik Varada	Reveal
Lanesurf	S25	Book any load in 10 minutes	Active	San Francisco, CA, USA	11		Pratham Bansal, Sarthak Singh Chauhan	Reveal
Lanesurf	S25	Voice AI for booking freight	Active	San Francisco, CA, USA	4		Pratham Bansal, Sarthak Singh Chauhan	Reveal
Lark	S25	The E2E testing layer for AI-driven development	Active	San Francisco, CA, USA	2		Vijit Dhingra, Jack Brown	Reveal
Lilac	S25	We sell GPUs.	Active	San Francisco, CA, USA; Remote	4		Ryan Ewing, Lucas Ewing	Reveal
Liva AI	S25	Audio & Video Data	Active	San Francisco, CA, USA	2		Ashley Mo, Aoi Otani	Reveal
Liva AI	S25	Audio & Video Data	Active	San Francisco, CA, USA	4		Ashley Mo, Aoi Otani	Reveal
Lotas	S25	AI for quantitative trading	Active	San Francisco, CA, USA	2		Jorge Guerra, William Nickols	Reveal
Lotas	S25	AI for Data Science and 3D	Active	San Francisco, CA, USA	2		Jorge Guerra, William Nickols	Reveal
Louiza Labs	S25	Hebbia for Pharmaceutical Evidence	Active	San Francisco, CA, USA	2		Larissa Tyagi	Reveal
Luminal	S25	Making AI run fast on any hardware.	Active	San Francisco, CA, USA	7		Joe Fioti, Matthew Gunton, Jake Stevens	Reveal
Magnetic	S25	AI Tax Preparer for CPA firms	Active	San Francisco, CA, USA	10		Thomas Shelley, Patrick Fay	Reveal
MangoDesk	S25	RL environments for software engineering	Active	San Francisco, CA, USA	2		Ankith Subramanya, Ananth Subramanya	Reveal
Manufact	S25	Cloud infrastructure for MCP servers and Claude / ChatGPT apps.	Active	San Francisco, CA, USA	6		Pietro Zullo, Luigi Pederzani	Reveal
Meteor	S25	An AI-Native Browser	Active	San Francisco, CA, USA	2		Pranav Madhukar, Farhan Khan	Reveal