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Open Library Foundation Inc

EIN 81-4396672Philadelphia, PAScience & TechLatest 990 FY2025

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Listed with the IRS. Every screen came back clear.

A 501(c)(3) on Publication 78 and the IRS master file.

A paid feature, included from the $75 plan up. Sign in to download.Checked Nov 5, 2026, 9:04 PM ET
IRS nonprofit listing
No issue
Revocation
None
IRS files
Agree
Sanctions
No match
IRS bulletin
No notice
California
No record
Charity type
509(a)(1)

$844krevenue
FY2025 · +344% in 3 yrs
6 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
$0$500k$1.0M$1.5M’18’19’22’23’24’25
Against similar nonprofits FY2025
Operating margin10.8%
Months of reserve10.9mo
Revenue growth (annualized)−2.6%
Middle half of peersMedianOpen Library
Where the money goes FY2025 · $752k spent
Programs$674k90%Management and general$79k10%990 FY2025 · Part IX line 25