US · ai · artificial intelligence · cloud
Who invested in OpenAI
10 rounds we have observed, with the investors named in each. Every figure below came from a named source, and where the company reported the raise to the SEC itself, that is shown beside it.
The rounds
Growth · Mar 2026 · $122B
Andreessen Horowitz lead, SoftBank lead, MGX lead, D.E. Shaw Ventures lead, T. Rowe Price Associates lead, TPG lead, Nvidia, T. Rowe Price, Microsoft, Amazon, D.E. Shaw
Reported by Crunchbase News and 2 others · SEC filing: $3.0M sold under the offering
Undisclosed round · Mar 2026 · $110B
Nvidia lead, SoftBank lead, Amazon lead, SoftBank's Vision Fund lead, Thrive Capital, Microsoft
Reported by Crunchbase News and 7 others · SEC filing: $3.0M sold under the offering
Undisclosed round · Aug 2025 · $8.3B
Dragoneer Investment Group lead, Andreessen Horowitz, Sequoia, Sequoia Capital, Founders Fund, Coatue, Coatue Management, Thrive Capital, Tiger Global, Altimeter, Altimeter Capital, Fidelity, T. Rowe Price, Blackstone, D1 Capital Partners, TPG, Blackstone Group, D1 Capital, Fidelity Management
Reported by TechCrunch and 3 others
Growth · Mar 2025 · $40B
SoftBank lead, SoftBank Group Corp lead, Founders Fund, Coatue, Coatue Management, Thrive Capital, Altimeter, Altimeter Capital, Microsoft, Thrive, Altimeter Capital Management, Magnetar Capital
Reported by Crunchbase News and 5 others
Undisclosed round · Oct 2024 · $10M
Thrive Capital lead, Nvidia, Khosla Ventures, Altimeter Capital, Fidelity, SoftBank, MGX, JPMorgan Chase, Microsoft, Santander, Wells Fargo, Boman Group
Reported by Crunchbase News and 8 others
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.