Here are the 24 US AI startups that have raised $100M or more in 2025

The AI industry in the U.S. continues to see strong momentum in 2025, building on a monumental year in 2024. While 2024 saw 49 startups raising funding rounds of $100 million or more, the first half of 2025 indicates a continuation of this trend, with multiple billion-dollar rounds already closed. Q1 2025 even surpassed Q1 2024 in terms of AI mega-rounds in the U.S.

Here’s a breakdown of the U.S. AI companies that have secured $100 million or more in funding this year:

June

• Glean: This enterprise search startup raised a $150 million Series F round on June 10, led by Wellington Management, valuing the company at $7.25 billion. Sequoia, Lightspeed Venture Partners, and Kleiner Perkins also participated. Source
• Anysphere: The AI research lab behind the AI coding tool Cursor, raised a $900 million Series C round, valuing the company at nearly $10 billion. Thrive Capital led the round, with participation from Andreessen Horowitz, Accel, and DST Global. Source

May

• Snorkel AI: On May 29, the AI data labeling startup announced a $100 million Series D round, valuing the company at $1.3 billion. Addition led the round, with participation from Prosperity7 Ventures, Lightspeed Venture Partners, and Greylock. Source
• LMArena: This popular, community-driven benchmarking tool for AI models, raised a $100 million seed round, valuing the startup at $600 million. Andreessen Horowitz and UC Investments co-led the round, with participation from Lightspeed Venture Partners, Kleiner Perkins, and Felicis. Source
• TensorWave: The Las Vegas-based AI infrastructure company announced a $100 million Series A round on May 14. Magnetar Capital and AMD Ventures co-led the round, with participation from Prosperity7 Ventures, Nexus Venture Partners, and Maverick Silicon. Source

April

• SandboxAQ: Closed a $450 million Series E round on April 4, valuing the AI model company at $5.7 billion. Investors included Nvidia, Google, and Bridgewater Associates founder Ray Dalio. Source
• Runway: This company, which creates AI models for media production, raised a $308 million Series D round, valuing the company at $3 billion. General Atlantic led the round, with participation from SoftBank, Nvidia, and Fidelity. Source

March

• OpenAI: Raised a record-breaking $40 billion funding round, valuing the startup at $300 billion. SoftBank led the round, with participation from Thrive Capital, Microsoft, and Coatue. Source
• Nexthop AI: Announced a Series A round led by Lightspeed Venture Partners. The $110 million round also included Kleiner Perkins, Battery Ventures, and Emergent Ventures. Source
• Insilico Medicine: Raised $110 million for its generative AI-powered drug discovery platform. Value Partners and Pudong Chuangtou co-led this Series E round, valuing the company at $1 billion. Source
• Celestial AI: Raised a $250 million Series C round, valuing the company at $2.5 billion. Fidelity led the round, with participation from Tiger Global, BlackRock, and Intel CEO Lip-Bu Tan. Source
• Lila Sciences: Raised a $200 million seed round to create a science superintelligence platform. Flagship Pioneering led the round, with funding from March Capital, General Catalyst, and ARK Venture Fund. Source
• Reflection.Ai: Raised a $130 million Series A round, valuing the 1-year-old company at $580 million. Lightspeed Venture Partners and CRV led the round. Source
• Turing: Closed a Series E round, valuing the startup at $2.2 billion. Khazanah Nasional led the $111 million round, with participation from WestBridge Capital, Gaingels, and Sozo Ventures. Source
• Shield AI: Raised $240 million in a Series F round, valuing the company at $5.3 billion. L3Harris Technologies and Hanwha Aerospace co-led the round, with participation from Andreessen Horowitz and the US Innovative Technology Fund. Source
• Anthropic: Raised $3.5 billion in a Series E round, valuing the startup at $61.5 billion. Lightspeed led the round, with participation from Salesforce Ventures, Menlo Ventures, and General Catalyst. Source

February

• Together AI: Raised a $305 million Series B round, valuing the company at $3.3 billion. Prosperity7 and General Catalyst co-led the round, with participation from Salesforce Ventures, Nvidia, Lux Capital, and others. Source
• Lambda: Raised a $480 million Series D round, valuing the startup at nearly $2.5 billion. SGW and Andra Capital co-led the round. Nvidia, G Squared, ARK Invest, and others also participated. Source
• Abridge: Valued at $2.75 billion in a Series D round. IVP and Elad Gil co-led the $250 million round. Lightspeed, Redpoint, and Spark Capital also participated. Source
• Eudia: Raised $105 million in a Series A round led by General Catalyst. Floodgate, Defy Ventures, and Everywhere Ventures also participated. Source
• EnCharge AI: Raised a $100 million Series B round. Tiger Global led the round, with participation from Scout Ventures, Samsung Ventures, and RTX Ventures. Source
• Harvey: Raised a $300 million Series D round, valuing the company at $3 billion. Sequoia led the round. OpenAI Startup Fund, Kleiner Perkins, Elad Gil, and others also participated. Source

January

• ElevenLabs: Raised a $180 million Series C round, valuing the company at more than $3 billion. ICONIQ Growth and Andreessen Horowitz co-led the round. Sequoia, NEA, Salesforce Ventures, and others also participated. Source
• Hippocratic AI: Announced a $141 million Series B round, valuing the company at more than $1.6 billion. Kleiner Perkins led the round. Andreessen Horowitz, Nvidia, and General Catalyst also participated. Source