Private Foundation

THERKILDSEN CHARITABLE FOUNDATION C/O JOHN L RIESBECK

THERKILDSEN CHARITABLE FOUNDATION C/O JOHN L RIESBECK, of NAPERVILLE, IL, is a Private Foundation tracked in Imperigo's IRS 990 database. The 2025 filing shows $383K in revenue, $424K in expenses, $710K in total assets. IRS filings disclose 44 grants awarded by this foundation, totaling roughly $1.8M.

EIN: 364157275 NAPERVILLE, IL Latest filing: 2025

Total Revenue$383K

Total Expenses$424K

Total Assets$710K

Grants Given44

Grant Total$1.8M

Filing Years2021–2025

Sample Grants Given

IOWA STATE UNIVERSITY FDN

AMES, IA · 2025

CHARITIABLE CONTRIBUTION

$416,000

TRINITAS CLASSIC ACADEMY

FRANKLIN, TN · 2025

CHARITABLE CONTRIBUTION

$1,000

SUSAN G KOMEN RACE FOR THE CURE

DALLAS, TX · 2025

CHARITABLE CONTRIBUTION

$1,000

HORSEPOWER THERAPEUTIC RIDING

ELBURN, IL · 2025

CHARITABLE CONTRIBUTION

$500

IOWA STATE UNIVERSITY FDN

AMES, IA · 2024

CHARITIABLE CONTRIBUTION

$350,000

Showing up to 5 of 44 total records — full history available with membership.

Officers & Directors

TRUSTEE Charles G Therkildsen

TRUSTEE Deanne L Prochnow

TRUSTEE Debra L Peterson

TRUSTEE Joyce A Therkildsen

Officer compensation and complete director data available with membership.

Top Grant Purposes

CHARITIABLE CONTRIBUTION

$1,448,000 5 grants

CHARITABLE CONTRIBUTION

$382,008 38 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$383K	$424K	$710K
2024	$373K	$361K	$751K
2023	$323K	$355K	$740K
2022	$94K	$325K	$772K
2021	$38K	$3K	$1.0M

Between 2021 and 2025, reported annual revenue grew from $38K to $383K (+906%), with total assets most recently reported at $710K.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, CO, DC, FL, IA, IL, and 4 other states.

CACODCFLIAILKSMIMOOH

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for THERKILDSEN CHARITABLE FOUNDATION C/O JOHN L RIESBECK

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Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports