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Nonprofit · EIN 36-3210564

KEYSTONE FOUNDATION

Tax-exempt · NORTHBROOK, IL 60062

Financials

$39K$3K2023$21K$3K2024
Revenue Expenses · by fiscal year end
Financials of KEYSTONE FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$20,566$2,500$18,066$952,960$0$952,960
June 30, 2024990$39,001$3,105$35,896$845,464$0$845,464
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$0
Investment income
$20,566
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Management and general (functional)
$2,500

Balance sheet and other

Total assets, start of year
$845,464
Total assets, end of year
$952,960
Total liabilities, end of year
$0
Net assets, end of year
$952,960
Net assets without donor restrictions
$952,960
Gross receipts
$20,566
Employees
0
Volunteers
4
Year formed
1982
State of legal domicile
IL

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationFrom related orgsOther / benefits
GREG PETERSENPRESIDENT
Officer
40$0$210,291$38,000
LINDA COLEMANASSISTANT TREASURER
Officer
40$0$136,664$9,628
SAMANTHA LipscombASSISTANT SECRETARY
Officer
40$0$114,231$9,443
DAVID STAUBCHAIR
Trustee or director, Officer
1$0$0$0
DAVE WESSELINKTreasurer
Trustee or director, Officer
1$0$0$0
ALAN NADOLNADIRECTOR
Trustee or director
1$0$0$0
ART FESSDIRECTOR
Trustee or director
1$0$0$0
990 for the year ended June 30, 2024: 6 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
GREG PETERSENPRESIDENT
Officer
40$0$192,864$38,000
LINDA COLEMANASSISTANT TREASURER
Officer
40$0$138,438$9,871
SAMANTHA ZAJACASSISTANT SECRETARY
Officer
40$0$98,112$7,837
TOM MASONVICE CHAIR
Trustee or director, Officer
1$0$0$0
DAVID STAUBCHAIR
Trustee or director, Officer
1$0$0$0
DAVE WESSELINKTreasurer
Trustee or director, Officer
1$0$0$0

Address and contacts

Address (IRS master file)
3300 DUNDEE RD, NORTHBROOK, IL 60062-2303
In care of
% LINDA COLEMAN
Principal officer (990 for 2024)
GREG PETERSEN, 1925 N CLYBOURN SUITE 200, CHICAGO, IL 60614
Signed the 990
Linda Coleman, ASST. TREASURER
Phone
(773) 305-5000
Return prepared by
MILLER COOPER & CO LTD

Mission

THE KEYSTONE FOUNDATION SUPPORTS COMMUNITIES BY SUPPORTING GLENKIRK AND SEARCH, TWO OF ITS NONPROFIT AFFILIATES. GLENKIRK AND SEARCH PROVIDE IMPORTANT SERVICES AND PROGRAMS WHICH EMPOWER HUNDREDS OF PEOPLE WITH INTELLECTUAL DISABILITIES AND THEIR FAMILIES EVERY DAY. THE KEYSTONE FOUNDATION SUPPORTS GLENKIRK AND SEARCH THROUGH A MYRIAD OF FUNDRAISING ADVOCACY ENDEAVORS.

990 for the year ended June 30, 2025

Program accomplishments

  • THE KEYSTONE FOUNDATION SUPPORTS COMMUNITIES BY SUPPORTING GLENKIRK AND SEARCH, TWO OF ITS NONPROFIT AFFILIATES. GLENKIRK AND SEARCH PROVIDE IMPORTANT SERVICES AND PROGRAMS WHICH EMPOWER HUNDREDS OF PEOPLE WITH INTELLECTUAL DISABILITIES AND THEIR FAMILIES EVERY DAY. THE KEYSTONE FOUNDATION SUPPORTS GLENKIRK AND SEARCH THROUGH A MYRIAD OF FUNDRAISING ADVOCACY ENDEAVORS.

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
36-3210564
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
1983
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Assets (IRS master file)
$952,960
Income (IRS master file)
$20,566

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$20,566$2,500$952,960IRS
990June 2024$39,001$3,105$845,464IRS
990June 2023$44,815$2,645$726,282IRS
990June 2022$42,243$2,593$625,407IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2019–––IRS
990June 2018–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.

Questions about KEYSTONE FOUNDATION

What is the EIN of KEYSTONE FOUNDATION?
The employer identification number (EIN) of KEYSTONE FOUNDATION is 36-3210564.
Is KEYSTONE FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
Are donations to KEYSTONE FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does KEYSTONE FOUNDATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of KEYSTONE FOUNDATION due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did KEYSTONE FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of KEYSTONE FOUNDATION?
The 990 for the year ended June 30, 2025 names GREG PETERSEN.
Who are the officers and directors of KEYSTONE FOUNDATION?
The 990 for the year ended June 30, 2025 lists 7 people; 0 received compensation from the organization.
How much revenue does KEYSTONE FOUNDATION have?
On its 990 for the year ended June 30, 2025 it reported revenue of $20,566, expenses of $2,500 and total assets of $952,960 at year end.

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