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Nonprofit · EIN 52-2322578

STEMPLER FAMILY FOUNDATION

Tax-exempt · WASHINGTON, DC 20006

Financials

$58K$260K2023$63K$22K2024$90K$30K2025
Revenue Expenses · by fiscal year end
Financials of STEMPLER FAMILY FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2026990$89,515$30,346$59,169$747,670$0$747,670
June 30, 2025990$62,681$22,443$40,238$688,502$0$688,502
June 30, 2024990$58,252$259,778-$201,526$648,264$0$648,264
Financial details: 990 for the year ended June 30, 2026

Revenue

Contributions, gifts and grants
$0
Program service revenue
$0
Investment income
$89,515
Net gain from sales of assets
$9,240
Other revenue
$0

Expenses

Grants and similar amounts paid
$16,045
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Legal fees
$926
Accounting fees
$10,900
Program services (functional)
$16,045
Management and general (functional)
$14,301

Balance sheet and other

Total assets, start of year
$688,501
Total assets, end of year
$747,670
Total liabilities, end of year
$0
Net assets, end of year
$747,670
Publicly traded securities
$732,539
Gross receipts
$99,976
Employees
0
Year formed
2000
State of legal domicile
MD

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, 2026, highest compensation first.

NameTitleHours / weekCompensation
Deana StemplerPresident
Trustee or director, Officer
0$0
Kenneth JacobsonDirector
Trustee or director
0$0
Kenneth SheinbergDirector
Trustee or director
0$0
Howard E StemplerSecy/Treas
Trustee or director, Officer
0$0
Jonathan GreenblattDirector
Trustee or director
0$0
990 for the year ended June 30, 2025: 5 people
NameTitleHours / weekCompensation
Deana StemplerPresident
Trustee or director, Officer
0$0
Kenneth JacobsonDirector
Trustee or director
0$0
Kenneth SheinbergDirector
Trustee or director
0$0
Howard E StemplerSecy/Treas
Trustee or director, Officer
0$0
Jonathan GreenblattDirector
Trustee or director
0$0
990 for the year ended June 30, 2024: 5 people
NameTitleHours / weekCompensation
Deana StemplerPresident
Trustee or director, Officer
0$0
Kenneth JacobsonDirector
Trustee or director
0$0
Kenneth SheinbergDirector
Trustee or director
0$0
Howard E StemplerSecy/Treas
Trustee or director, Officer
0$0
Jonathan GreenblattDirector
Trustee or director
0$0

Address and contacts

Address (IRS master file)
750 17TH ST NW STE 900, WASHINGTON, DC 20006-4675
In care of
% GEORGE N HARRIS JR
Principal officer (990 for 2025)
Deana Stempler, c/o 750 17th St NW STE900, Washington, DC 200064675
Signed the 990
Deana Stempler, President
Phone
(202) 457-7200
Return prepared by
Wannen and Company

Mission

THE CORPORATION IS ORGANIZED TO PROMOTE CHARITABLE, SCIENTIFIC AND EDUCATIONAL PURPOSES AND TO SUPPORT ACTIVITIES AND PROMOTE THE PURPOSES OF THE ANTI-DEFAMATION LEAGUE OF B'NAI B'RITH. THE ACTIVITIES AND RESOURCES OF THE CORPORATION SHALL BE DEVOTED AND DIRECTED EXCLUSIVELY TO PROVIDING FINANCIAL SUPPORT TO DESIGNATED FUNCTIONS INCLUDING, BUT NOT LIMITED TO, ADVANCING GOODWILL AND UNDERSTANDING BETWEEN AMERICAN GROUPS, PRESERVING THE IDEALS OF AMERICAN DEMOCRACY, ELIMINATING DEFAMATION OF THE JEWS, SUPPORTING PROGRAMS THAT EDUCATE THE GENERAL PUBLIC ABOUT JEWISH CULTURE AND HISTORY AND THE HOLOCAUST.

990 for the year ended June 30, 2026

Program accomplishments

  • See list of supported organizations - Schedule F
    grants $16,045

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2026990 on file
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
52-2322578
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
2001
Accounting year ends
June
Files
Form 990 or 990-EZ
Assets (IRS master file)
$747,670
Income (IRS master file)
$99,976

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2026$89,515$30,346$747,670XML
990June 2025$62,681$22,443$688,502XML
990June 2024$58,252$259,778$648,264XML
990June 2023$57,046$148,258$849,790IRS
990June 2022–––IRS
990June 2021–––IRS
990June 2019–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 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 (search EIN 52-2322578).

Questions about STEMPLER FAMILY FOUNDATION

What is the EIN of STEMPLER FAMILY FOUNDATION?
The employer identification number (EIN) of STEMPLER FAMILY FOUNDATION is 52-2322578.
Is STEMPLER FAMILY FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2001.
Are donations to STEMPLER FAMILY FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does STEMPLER FAMILY FOUNDATION file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of STEMPLER FAMILY FOUNDATION due?
The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did STEMPLER FAMILY FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2026.
Who is the principal officer of STEMPLER FAMILY FOUNDATION?
The 990 for the year ended June 30, 2026 names Deana Stempler.
Who are the officers and directors of STEMPLER FAMILY FOUNDATION?
The 990 for the year ended June 30, 2026 lists 5 people; 0 received compensation from the organization.
How much revenue does STEMPLER FAMILY FOUNDATION have?
On its 990 for the year ended June 30, 2026 it reported revenue of $89,515, expenses of $30,346 and total assets of $747,670 at year end.

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