JEK Foundation

Private foundation · EIN 39-1998578 · since 2000·Wisconsin·Updated 13 October 2026

At a glance

$1.5M

Annual giving, 2024 tax year

From the Form 990-PF filing

$4,000 to $100k

Grant range

From grants in the 990-PF filings

$25,000

Typical grant (median)

40 grants in the latest filing

Open to applications

Fixed application deadlines · unsolicited applications welcome

Key takeaways

Its filings show grants mainly in Wisconsin, with unrestricted operating support the most common purpose and capital campaigns another major use, so a Wisconsin group with a general operating need or a capital project in its funded areas is a natural fit.
Half of its 120 grants to organisations were $25,000 or less, and about 8 in 10 fall between $4,000 and $100,000, so a modest request in that range is typical, though its largest grant was about $240,000, to a community foundation that regrants to other organisations.
In the most recent filing, 93% of grant dollars to organisations went to groups it had also funded in earlier filings, so relationships matter and a first approach should be made with care.
Send a written request, preferably by email, giving your name and address and describing how the funds will be used, and do not rely on phone calls, as it does not respond to phone enquiries about prospective grants.
Its submission deadline is October 31, so aim to get your request in before then.

Overview

JEK Foundation is a US private foundation based in Oshkosh, WI.

What they fund

Profile based on the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) only: no website or other web source for the foundation was found. Every statement is checked against the filings. Sources read on 7 October 2026.

Priority Areas

The foundation's recorded grants went to Wisconsin charitable organisations, with unrestricted operating support the most common stated purpose and capital campaigns another major use. Recipients included youth-serving organisations and community recreation; food and emergency-support providers; domestic-abuse, housing and recovery services; arts and cultural organisations; education and literacy groups; and health and community-development organisations. Other grants supported facilities, equipment and individual projects and events. Its filed application information asks for a written request, preferably by email, identifying the applicant by name and address and describing how funds will be used. The filing gives an October 31 submission deadline.

Geographic Focus

No geographic focus is stated; the filings show grants mainly in Wisconsin.

How to apply

Submit an application in writing, preferably by email, with the applicant's name and address and a description of how the funds will be used. The foundation does not respond to phone enquiries about prospective grants.

Deadlines: The submission deadline is October 31.

Application success factors

Repeat giving: In its TY2024 filing, 93% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 120 grants to organisations were $25,000 or less.

Where grants go

From grants to organisations in the foundation’s filings for tax years 2022–2024.

Grant dollars by state

Wisconsin100%

The largest single recipient received 16% of grant dollars to organisations.
In tax year 2024, 93% of grant dollars went to organisations JEK Foundation had funded in earlier filings.
No grants were paid directly to organisations outside the US.
20% of grant dollars went to intermediaries that regrant to other organisations.

Grants

40 grants in the latest filing analysed · median $25,000

How much do they typically give?

Share of 40 grants in tax year 2024 by size

$1k–$2.5k3%

$2.5k–$5k8%

$5k–$10k5%

$10k–$25k25%

$25k–$50k25%

$50k–$100k23%

$100k–$250k13%

Median $25,000 (tax year 2024)

The largest grants to organisations in the foundation’s latest filing:

Oshkosh Community YMCA · Capital campaign
$150,0002024 tax year
Boys and Girls Club of Oshkosh · Capital campaign
$150,0002024 tax year
Boys and Girls Club of Oshkosh · Capital campaign
$100,0002024 tax year
Christine Ann Domestic Abuse Services · Capital campaign
$100,0002024 tax year
Oshkosh Area Community Pantry · Unrestricted operating funds
$100,0002024 tax year
Habitat for Humanity · Unrestricted operating funds
$75,0002024 tax year
Greater Oshkosh Healthy Neighboorhoods · Unrestricted operating funds
$70,0002024 tax year
Boys and Girls Club of Oshkosh · Unrestricted operating funds
$50,0002024 tax year

Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.

Officers and directors

Catherine S Luther — Trustee
Courtney E Lasky — Trustee
Peter J Lang — Trustee
Gerald J Stadtmueller — President

From the latest Form 990-PF filing

3 years of tax filings

Year	Total expenses	Grants paid	Assets	Filing document
2022 tax year	$2,112,273	$1,781,000	$31,754,216	Filing for 2022 tax year
2023 tax year	$1,856,644	$1,632,750	$34,346,749	Filing for 2023 tax year
2024 tax year	$1,768,500	$1,544,825	$36,713,754	Filing for 2024 tax year

Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.