Browse by category in United States
Top United States AI startups
Anthropic
Founded 2021 · San Francisco
AI safety lab building Claude — a helpful, harmless, honest AI assistant.
OpenAI
Founded 2015 · San Francisco
Creator of ChatGPT, GPT-4, and the leading frontier AI lab.
Cursor
Founded 2022 · San Francisco
The AI code editor built for productive engineers.
Perplexity
Founded 2022 · San Francisco
The answer engine — AI search with real-time citations.
Grammarly
Founded 2009 · San Francisco
AI writing assistant for individuals and teams.
Recent funding in United States
| Date | Startup | Round | Amount |
|---|---|---|---|
| Oct 2, 2025 | OpenAI | Series B | $10.3B |
| Mar 3, 2025 | Anthropic | Series E | $4B |
| Dec 18, 2024 | Perplexity | Series C | $500M |
| Dec 10, 2024 | Cursor | Series B | $100M |
| Nov 20, 2024 | Grammarly | Series D | $200M |
| Sep 25, 2024 | Clay | Series B | $46M |
| Sep 2, 2024 | Anthropic | Series D | $3.5B |
| Aug 23, 2024 | Hugging Face | Series D | $235M |
All startups in United States
OpenAI
Founded 2015 · San Francisco
Creator of ChatGPT, GPT-4, and the leading frontier AI lab.
Anthropic
Founded 2021 · San Francisco
AI safety lab building Claude — a helpful, harmless, honest AI assistant.
Jasper
Founded 2021 · Austin
AI copilot for enterprise marketing teams.
Writesonic
Founded 2020 · San Francisco
AI writer, editor, and SEO tool for content teams.
Midjourney
Founded 2021 · San Francisco
Independent AI image generation lab.
Perplexity
Founded 2022 · San Francisco
The answer engine — AI search with real-time citations.
Cursor
Founded 2022 · San Francisco
The AI code editor built for productive engineers.
Copy.ai
Founded 2020 · Memphis
AI platform for go-to-market teams.
Grammarly
Founded 2009 · San Francisco
AI writing assistant for individuals and teams.
Runway
Founded 2018 · New York
Applied AI research for video, image, and 3D.
HeyGen
Founded 2020 · Los Angeles
AI video platform with hyper-realistic avatars.
Descript
Founded 2017 · San Francisco
AI video and podcast editing — edit by editing the transcript.
Windsurf
Founded 2021 · Mountain View
Agentic AI IDE for next-generation coding.
Replit
Founded 2016 · San Francisco
Build software collaboratively from any device.
Chatbase
Founded 2023 · San Francisco
Custom AI chatbots trained on your data.
Cognition
Founded 2023 · San Francisco
Applied AI lab building Devin, the AI software engineer.
Character.AI
Founded 2021 · Menlo Park
Chat with millions of user-created AI characters.
PlayHT
Founded 2016 · San Francisco
AI voice generation and real-time voice agents.
Suno
Founded 2022 · Cambridge
Make any kind of song with AI.
Udio
Founded 2023 · New York
Discover, create, and share music with AI.
You.com
Founded 2020 · Palo Alto
The productivity search engine with AI agents.
Otter.ai
Founded 2016 · Mountain View
AI meeting assistant for notes, summaries, and action items.
Clay
Founded 2017 · New York
AI-powered sales prospecting and data enrichment.
Hex
Founded 2019 · San Francisco
The collaborative data workspace with AI.
Explore more AI from United States
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