The core mission of the Foundation is to assist and facilitate educational organizations, foundations, partnerships and commercial entities to collaborate to foster, develop and sustain Open technologies for innovation so as to support libraries, learning, research and teaching. The Foundation helps research, academic and public libraries.

501(c)(3) charity; gifts are tax-deductible.
90¢ of each $1 spent went to programs.
Run by 150 volunteers.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX · People: Part I, lines 5–6

Before you give

FY2025 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(3)
not on the IRS revocation list
Listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
Yes
Donations are tax-deductible
The IRS lists gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
The latest return is for FY2025, 1 tax year back.
IRS e-file · Filing history
Surplus or deficit
4 of 6
filings with a surplus
Average surplus $12K a year · 2% of revenue · last 6 filings
A surplus in 4 of the last 6 filings.
Pt I · Ln 19 · 6 filings
Spent on programs
90%
of spending
90% of spending went to programs.
Pt IX · Ln 25 · col B
10.9 mo
of spending, in cash
10.9 months of spending in cash.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
1
named funder · $5K
1 funder names it on their filings.
Funders’ Sch. I, 990-PF
Liabilities
$17K
2% of total assets
Liabilities are 2% of assets.
Pt X · Ln 26
Independent board members
7
of 7 voting members
7 of 7 voting members are independent.
Pt VI · Ln 1a–1b
Revenue
$844K
+49% vs prior year
Spent
$752K
To programs
90%
Net assets
$727K
By yearFY2018–FY2025
Revenue
$844K
FY2025▲ +49%
Tap a bar for its year
Revenue by fiscal year
FY2018$1.0M
FY2019$1.3M
FY2022$190K
FY2023$822K
FY2024$567K
FY2025$844K
Expenses
$752K
FY2025▲ +47%
Tap a bar for its year
Expenses by fiscal year
FY2018$885K
FY2019$1.5M
FY2022$449K
FY2023$590K
FY2024$512K
FY2025$752K
Net assets
$727K
FY2025▲ +14%
Tap a bar for its year
Net assets by fiscal year
FY2018$499K
FY2019$322K
FY2022$349K
FY2023$581K
FY2024$636K
FY2025$727K

From the FY2025 Form 990 (year ending June 2025) · figures checked against the IRS filing · see the original

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Apr 2017.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

90 cents of each dollar spent went to programs.

Program services 90% · $674K Management & general 10% · $79K

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

Something off? Claim to add context

Who runs it and what they're paid

11 people listed on the 990.

Part VII, Section A · reportable compensation · most recent filed roster (FY2024); the FY2025 filing did not itemize Part VII
President
$0Pt VII · Sec A
$0Pt VII · Sec A
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
Senior Operations Officer
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
See Open Library Foundation executive salaries →

Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aNo

Programs and updates

Connects educational groups to build open technologies for libraries and learning.

Questions for Open Library Foundation

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Your first name shows with your question. Open Library Foundation answers here, for everyone.

3 programs · $664K · in their own filed words · FY2024
01

Folio

Folio is a collaboration of libraries, developers and vendors building an open source library services platform. It supports traditional resource management functionality and can be extended into other institutional areas.

$471Kprogram expense
02

Wolfcon

Wolfcon 2024 meeting occurred in senate house at the university of london in september 2024.

$188Kprogram expense
03

Vufind

One major and one minor release were completed. A virtual user and developer summit was held online and in-person in SEPTEMBER/OCTOBER, 2024. A registered service provider program was established, and five organizations became project supporters during the year.

$4Kprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · funders on record
Grants received · FY2020
Total grants receivedfrom 1 funder$5K

By the numbers

The FY2025 990, line by line.

1The main four
Money inPt VIII
$844K
Ln 12
Gifts and grantsLn 1h$715K
Fees for servicesLn 2g$113K
Investment incomeLn 3$11K
Money outPt IX
$752K
Ln 25
Programscol B$674K
Managementcol C$79K
Owns and owesPt X
$727K
net assets · Ln 32
Cash and savingsLn 1–2$685K
Total assetsLn 16$744K
LiabilitiesLn 26$17K
PeoplePt VI, VII
11
listed · VII A
PaidVII A0
Voting boardVI 1a7
IndependentVI 1b7
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$715K
Noncash giftsLn 1g$68K
Fees for servicesLn 2g$113K
Investment incomeLn 3$11K
Other incomeLn 4–11$4K
Total revenueLn 12$844K
Assets in detailPt X, end of year
CashLn 1$416K
SavingsLn 2$268K
Cash and savings togetherLn 1–2$685K
Accounts receivableLn 4$1K
Prepaid expenses and deferred chargesLn 9$58K
Total assetsLn 16$744K
LiabilitiesLn 26$17K
Net assetsLn 32$727K
OperationsPt I, VI
EmployeesI 50
VolunteersI 6150
Fiscal year endsHeaderJune
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13No
Records policyVI 14No
3More from this return
Abroad and in kindSch F, M
Noncash gifts receivedSch M Pt I$68K
4Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY25End FY25
Cash and savingsLn 1–2$558K$685K
Total assetsLn 16$676K$744K
LiabilitiesLn 26$40K$17K
Net assetsLn 32$636K$727K
5Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Legal feesLn 11b$7K$5K$2K
Accounting feesLn 11c$22K$16K$5K
Other fees for servicesLn 11g$35K$34K$2K
Office expensesLn 13$3K$3K
Information technologyLn 14$520K$468K$52K
TravelLn 17$1K$1K
Conferences, conventions and meetingsLn 19$153K$137K$15K
Other expenses (24a–d)Ln 24$12K$12K
Total functional expensesLn 25$752K$674K$79K$0

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest ViewingFiled with the IRS Jan 28, 2026 $844K$752K$91K$727K 990 PDF
FY2024Filed with the IRS Feb 6, 2025 $567K$512K$55K$636K 990 PDF
FY2023Filed with the IRS May 14, 2024 $822K$590K$232K$581K 990 PDF
FY2022Filed with the IRS May 11, 2023 $190K$449K−$259K$349K 990 PDF
FY2021 Not on file
FY2020 Not on file
FY2019Filed with the IRS Mar 8, 2021 $1.3M$1.5M−$177K$322K 990 PDF
FY2018Filed with the IRS Mar 8, 2021 $1.0M$885K$130K$499K 990 PDF

Schedules filed Part IV

A · Public support I · Grants M · Noncash O · Explanations
See the full FY2025 990
Part I · Summary $843,542 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $481,345$715,478
I-9 Program service revenuePrior year $82,660$112,776
I-10 Investment incomePrior year $33$11,175
I-11 Other revenuePrior year $2,499$4,113
I-12 Total revenuePrior year $566,537$843,542
I-13 Grants and similar amounts paidPrior year $0$0
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $0$0
I-16a Professional fundraising feesPrior year $0$0
I-17 Other expensesPrior year $511,632$752,245
I-18 Total expensesPrior year $511,632$752,245
I-19 Revenue less expensesPrior year $54,905$91,297
Part VI · Governance 7 of 7 board members independent, 3 to look at
VI-1a Voting members of the governing body7
VI-1b Independent voting members7
VI-13 Written whistleblower policyNo
VI-14 Document retention and destruction policyNo
VI-15a Process for setting top official's payNo
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
Part VIII · Statement of revenue $843,542 across 8 lines filed
VIII-1b Membership dues$547,368
VIII-1f All other contributions, gifts and grants$168,110
VIII-1g Noncash contributions (included above)$68,259
VIII-1h Total contributions, gifts and grants$715,478
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $112,776$112,776
VIII-3 Investment incomeExcluded from tax $11,175$11,175
VIII-11a-d Other revenue, itemized rows (sum of 11a–11d as filed)Related to mission $4,113$4,113
VIII-12 Total revenueRelated to mission $116,889 · Unrelated business $0 · Excluded from tax $11,175$843,542
Part IX · Statement of functional expenses $752,245 across 8 lines filed
IX-11b Legal feesPrograms $5,244 · Management $1,748$6,992
IX-11c Accounting feesPrograms $16,215 · Management $5,405$21,620
IX-11g Other fees for servicesPrograms $33,673 · Management $1,667$35,340
IX-13 Office expensesManagement $2,519$2,519
IX-14 Information technologyPrograms $468,367 · Management $52,041$520,408
IX-17 TravelPrograms $1,183$1,183
IX-19 Conferences, conventions and meetingsPrograms $137,325 · Management $15,258$152,583
IX-24 Other expenses (24a–d)Programs $11,600$11,600
IX-25 Total functional expensesPrograms $673,607 · Management $78,638 · Fundraising $0$752,245
Part X · Balance sheet $743,935 assets, 12 lines filed
X-1 Cash, non-interest-bearingStart of year $542,387$416,477
X-2 Savings and temporary cash investmentsStart of year $15,628$268,035
X-4 Accounts receivableStart of year $64,750$1,000
X-9 Prepaid expenses and deferred chargesStart of year $52,884$58,423
X-16 Total assetsStart of year $675,649$743,935
X-17 Accounts payable and accrued expensesStart of year $4,684$7,173
X-19 Deferred revenueStart of year $35,050$9,550
X-26 Total liabilitiesStart of year $39,734$16,723
X-27 Net assets without donor restrictionsStart of year $475,415$602,895
X-28 Net assets with donor restrictionsStart of year $160,500$124,317
X-32 Total net assets or fund balancesStart of year $635,915$727,212
X-33 Total liabilities and net assetsStart of year $675,649$743,935
Part XI · Reconciliation of net assets $727,212 net assets at year end
XI-1 Total revenue$843,542
XI-2 Total expenses$752,245
XI-3 Revenue less expenses$91,297
XI-4 Net assets at start of year$635,915
XI-9 Other changes in net assets$0
XI-10 Net assets at end of year$727,212

Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File

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