Startups in San Francisco

Cognition

San Francisco

The company is an applied AI lab that builds end-to-end software agents and collaborative AI teammates, enabling engineers to focus on more interesting problems and empowering teams to pursue ambitious goals; it markets Devin as the first A

Thinking Machines Lab

San Francisco

Thinking Machines Lab is a San Francisco AI research startup founded in 2025 by former OpenAI CTO Mira Murati, building interpretable, collaborative AI systems for professional and enterprise use. Its first product, Tinker, helps developers fine-tune models without managing distributed infrastructure.

Poolside

San Francisco

Poolside is building the world's most capable AI for software development, focusing on distributed training and inference of large language models for source code generation, with a mission to unlock developers' potential through AI for sof

The Bot Company

San Francisco

The Bot Company builds household robots to give people back time, pursuing in-house AI, software and hardware. It plans to deploy millions at home before expanding, and has raised $300M, including a $150M Greenoaks-led round, valuing the co

Decagon

San Francisco

Decagon is a leading conversational AI platform delivering concierge customer experiences with AI agents across chat, email, and voice in any language. It serves brands like Hertz, Eventbrite, Duolingo, and Oura and is backed by Accel and A

Decart

San Francisco

Decart provides efficient systems-level AI infrastructure that dramatically accelerates training and inference of the largest generative models, enabling Decart to train its own foundational interactive models and offer real-time access to

Cursor

San Francisco

Anysphere develops Cursor to automate coding and build the premier tool for professional programmers, driven by research, design, and engineering from a San Francisco team backed by investors; its engineers and scientists have a track recor

Corgi

San Francisco

Corgi is an AI financial infrastructure company focused on building AI-enabled financial infrastructure, placing it at the intersection of artificial intelligence and finance.

LMArena

San Francisco

LMArena, created by UC Berkeley researchers, is an open platform for accessing and comparing leading AI models, where users rate responses and help build a public, real-world leaderboard to increase transparency in AI progress.

Assort Health

San Francisco

Assort Health offers what it calls the most comprehensive patient experience platform, handling 115M+ interactions since 2023 with 98%+ resolution, 99% scheduling accuracy, 4.4/5 patient satisfaction, and 15x revenue growth since Q4 2024, l

Factory

San Francisco

Factory is a platform for agent-driven software development. It serves customers such as MongoDB, Framer, Empower, Zapier, and Eightfold AI, and raised a $15 million Series A led by Sequoia Capital.

Cartesia

San Francisco

Cartesia builds the next generation of AI—ubiquitous, interactive intelligence that runs wherever you are. It maintains a Discord community (discord.com/invite/cartesia) and showcases its work at cartesia.ai.