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William Siekman FDN

Chicago, IL · EIN 396539731 990-PF tax year 2025

Historical funder research: IRS Form 990-PF filings from US private foundations, showing who funded what in past years. This is not a list of currently open grant calls, and we do not track open RFPs from private foundations. From public IRS Form 990-PF filings (latest on file for this funder: tax year 2025). Coverage: tax years 2019–2025. Freshness: the IRS releases these returns 1.5–2+ years after the tax year ends, so 2025 is still partial and a funder's newest grants may not appear yet. Last updated: November 14, 2026. Filings can contain errors, so confirm current priorities and deadlines with the funder before applying.

Grants paid (tax yr 2025)
$121,588
Assets (fair market value)
$3,075,866
Median grant to orgs
$3,000
all loaded years
Grants in our data
100
since tax year 2022
Giving by tax year
$132,076
2022
27 grants
$114,570
2023
25 grants
$109,510
2024
24 grants
$121,588
2025
24 grants

Year 2025 is still partial because many returns have not been filed or released yet. That is a freshness issue — coverage in our dataset is tax years 2019–2025.

Top recipient states
WI$363,744
OR$40,000
MI$34,000
TX$30,000
FL$10,000
Cause areas funded
Education8
Human Services8
Health Care4
Arts, Culture & Humanities14
International Affairs1

Only 35.0% of this funder's organizational grants could be linked to an IRS cause code.

How to apply (from the 990-PF, tax year 2025)
Form & materials
WRITTEN FORM
Deadlines
NONE
Restrictions
NONE
Recent grants to organizations
RecipientLocationPurpose (as filed)AmountTax yr
Hope Clinic & Care CenterAppleton, WIGENERAL OPERATING PURPOSES$15,0002025
The Appleton Cemetery AssociationAppleton, WIGENERAL OPERATING PURPOSES$15,0002025
Amigo Club of Ashland Oregon IncAshland, ORGENERAL OPERATING PURPOSES$10,0002025
Plymouth Congregational ChurchRacine, WIGENERAL OPERATING PURPOSES$10,0002025
Hillsdale CollegeHillsdale, MIGENERAL OPERATING PURPOSES$8,5002025
Lawrence UniversityAppleton, WIGENERAL OPERATING PURPOSES$8,0002025
Smu-Dedman School of LawDallas, TXPROGRAM SUPPORT$7,5002025
Appleton Alliance ChurchAppleton, WIGENERAL OPERATING PURPOSES$6,0002025
Salvation Army of the Fox CitiesAppleton, WIGENERAL OPERATING PURPOSES$5,5882025
Thedacare Cancer CenterAppleton, WIGENERAL OPERATING PURPOSES$5,0002025
Beaming IncorporatedNeenah, WIGENERAL OPERATING PURPOSES$5,0002025
YMCA of the Fox CitiesAppleton, WIGENERAL OPERATING PURPOSES$3,5002025
Acts 18 Ministry Attn Jeff Van BeaverGreen Bay, WIGENERAL OPERATING PURPOSES$3,0002025
The Appleton Historical SocietyAppleton, WIGENERAL OPERATIING PURPOSES$2,5002025
Dyslexia Reading ConnectionAppleton, WIGENERAL OPERATING PURPOSES$2,0002025
Memorial Presbyterian ChurchAppleton, WIGENERAL OPERATING PURPOSES$2,0002025
Attic TheatreAppleton, WIGENERAL OPERATING PURPOSES$2,0002025
Boys & Girls Club of the Fox ValleyAppleton, WIPROGRAM SUPPORT$2,0002025
LeavenMenasha, WIGENERAL OPERATING PURPOSES$2,0002025
Outagamie County Historical SocietyAppleton, WIGENERAL OPERATING PURPOSES$2,0002025
Cots - Community Outreach Temporary ServAppleton, WIGENERAL OPERATING PURPOSES$1,5002025
Curative Connections C/O Robin Van RemortelGreen Bay, WIGENERAL OPERATING PURPOSES$1,5002025
Bubolz Nature CenterAppleton, WIGENERAL OPERATING PURPOSES$1,0002025
Community Church of AppletonAppleton, WIPROGRAM SUPPORT$1,0002025
The Appleton Cemetery AssociationAppleton, WIGENERAL OPERATING PURPOSES$15,0002024

Grants to individuals are counted but not named.

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