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OpenAI

OpenAI is a scale-up headquartered in San Francisco, United States, founded in 2015. In short: American artificial intelligence research organization. It was valued at $852bn on 31 March 2026, making it a unicorn in the 311 Unicorn Index.

Part of the 311 Institute Global Startups Directory (311institute.com). Last updated .

2015Founded
Scale-upStage
San Francisco, United StatesHeadquarters
Artificial intelligenceIndustry
About 4,500Employees
$852bn valuation · 31 March 2026 · Funding round ($122bn)
Source: original report
Artificial intelligence
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Investors

R&D ecosystem

OpenAI sits inside the Silicon Valley and the Bay Area R&D ecosystem in the Global R&D Labs Directory.

Other startups in Silicon Valley and the Bay Area

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Questions and answers

What does OpenAI do?

American artificial intelligence research organization.

Where is OpenAI based?

OpenAI is headquartered in San Francisco, United States.

When was OpenAI founded?

OpenAI was founded in 2015.

Who invests in OpenAI?

Documented investors include Sequoia Capital, Andreessen Horowitz, Khosla Ventures.

How much is OpenAI worth?

OpenAI was valued at $852bn on 31 March 2026 (Funding round ($122bn)).

Source record: Wikidata.

© 311 Institute 2026. Facts from Wikidata (CC0) and the sources linked on this page. The selection, classification and links are the proprietary work of the 311 Institute, protected by copyright and database rights.