Foundation

OPEN SOCIETY INSTITUTE

EIN 137029285 · NEW YORK, NY · filings through tax year 2023

IRS filings through tax year 2023. The loaded set is Form 990-PF until a Form 990 Schedule I ingest is added. Last ingestion completed March 19, 2026.

Reported giving
$210,328,203
Median grant
$13,000
Average year
$232,497,704
Giving trend
+110%

Sector mix

  • civic26%
  • Education19%
  • social_services15%
  • international12%
  • arts8%

Where grants went

  • NY1,262 grants
  • DC325 grants
  • CA250 grants
  • MD169 grants
  • NJ125 grants

4,043 grants in the loaded filings.

How this scores for your organization

Match scores, officers, grant lines, and application contacts stay in your account.