Open Society Foundations
Sign in to saveAlso known as OSF, Open Society Institute, OSI, opensocietyfoundations.org, Soros Foundation
international grantmaking network founded by business magnate George Soros
Key facts
- Abbreviation
- OSF
- Founded
- April 1993 ; 33 years ago ( 1993-04 )
- Founder
- George Soros
- Location s
- 224 West 57th Street , New York , NY 10019, U.S.
- Chair
- Alexander Soros
- President
- Binaifer Nowrojee
- Revenue
- $436 million (2023)
- Endowment
- $23 billion (2025)
- Website
- opensocietyfoundations .org
- Formerly called
- Open Society Institute
via Wikipedia infobox
Research organization · ROR
- Type
- Funder, Nonprofit
- Founded
- 1993
- Location
- New York, United States
- Also known as
- OSF, Open Society Institute
- Status
- Active
GRID grid.453407.1 · ISNI 0000 0001 2289 9086
~11 min read
Encyclopedic overview
Open Society Foundations (OSF), formerly the Open Society Institute, is an American grantmaking network founded by billionaire business magnate George Soros. OSF financially supports progressive organizations. As of 2025, OSF has reported expenditures in excess of $24.2 billion since its establishment in 1993. OSF has assets of over $23 billion, making it one of the world's largest foundations. It has offices in over a dozen countries. The New York Times described OSF as "a sprawling political and philanthropic empire that seeks to advance a liberal, democratic agenda around the globe".
History
Excerpted from Wikipedia’s “Open Society Foundations” article, available under the CC BY-SA 4.0 licence.