In this article, we'll explore the top 49 US-based AI startups that raised $100 million or more in 2024. From foundation model startups to autonomous warehouse robotics companies, these innovative ventures have caught the attention of venture investors and are revolutionizing the AI industry.

What's Driving AI Investment?

Venture funding for AI companies continued to dominate during the third quarter of 2024, with a whopping $19 billion raised in Q3 alone. This figure represents an impressive 28% of all venture funding. The fourth quarter has been no less busy, with Elon Musk's xAI raising a behemoth $6 billion round in November.

Top AI Startup Investments

Here are the top US-based AI startups that raised $100 million or more in 2024:

December

  • Liquid AI, a foundation model startup, raised a sizable $250 million Series A round, valuing the company at $2.35 billion.
  • Tractian, an Atlanta-based machine intelligence company, raised a $120 million Series C round, valuing the company at $720 million.
  • Tenstorrent, an AI hardware company, nabbed a $2.7 billion valuation in its latest funding round, raising $693 million in a Series D round.

November

  • xAI, Elon Musk's AI company, raised a second monster funding round this year: a $6 billion round from investors including Sequoia and Andreessen Horowitz.
  • Enfabrica, an AI networking chip startup, raised a $115 million Series C round.
  • Writer, a full-stack generative AI platform, announced a $200 million Series C round.

October

  • Sierra, which makes AI chatbots for enterprise customers, raised a $175 million round that values the company at nearly $4.5 billion.
  • Nimble Robotics, an autonomous warehouse robotics startup, enters unicorn territory with its latest raise, valuing the company at $1.1 billion.
  • Lightmatter, a photonic computing startup, raised a sizable $400 million Series D round, valuing the company at $4.4 billion.

Other Notable Investments

  • Path Robotics, an autonomous welding robots startup, raised a $100 million Series D round.
  • EvenUp, an AI-powered legaltech company, raised a $135 million Series D round.

These innovative AI startups are revolutionizing industries and redefining the future of technology. From foundation model startups to autonomous warehouse robotics companies, these ventures have caught the attention of venture investors and are paving the way for the next generation of app startup ideas.