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OpenAI Funding History

Since OpenAI was founded in 2015, it has participated in 21 rounds of funding. In total OpenAI has raised $298.9B. OpenAI's last funding round was on Jul 2026 for a total of $520.0M.

OpenAI Funding Rounds

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ROUND

FUNDING DATE

AMOUNT

NUMBER OF INVESTORS

INVESTORS

Debt
Jul 2026
$520M
1
Bank of America
Equity
May 2026
$4B
6
TPG Inc,  Brookfield Asset Management,  Advent,  Bain Capital,  SoftBank,  Dragoneer Investment Group
Equity
Apr 2026
$75M
__
Equity
Mar 2026
$12B
7
SoftBank,  Microsoft,  D.E. Shaw Ventures,  MGX,  T. Rowe Price,  a16z,  TPG
Corporate Round
Mar 2026
$40M
1
Eightco Holdings Inc.

Total Funding: $298.9B

OpenAI Investors

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INVESTOR

ROUND

FUNDING DATE

Bank of America
Debt
Jul 2026
TPG Inc
Equity
May 2026
Brookfield Asset Management
Equity
May 2026
Advent
Equity
May 2026
Bain Capital
Equity
May 2026

Total Investors: 35

OpenAI has 35 investors, including Bank of America, TPG Inc and Brookfield Asset Management. The latest investment occurred in Jul 2026.