Private Foundation

ASSENMACHER FOUNDATION

ASSENMACHER FOUNDATION is a private foundation categorized as Private Foundation based in TUCSON, AZ. Its most recent IRS filing (2025) reports revenue of $92K, expenses of $71K, total assets of $320K. Imperigo tracks 41 reported grants from this foundation totaling approximately $552K.

EIN: 832788578 TUCSON, AZ Latest filing: 2025

Total Revenue$92K

Total Expenses$71K

Total Assets$320K

Grants Given41

Grant Total$552K

Filing Years2021–2025

Sample Grants Given

EL RIO FOUNDATION

TUCSON, AZ · 2025

PROGRAM SUPPORT

$25,000

CENTURION FOUNDATION

TUCSON, AZ · 2025

PROGRAM SUPPORT

$20,000

UNIVERSITY OF ARIZONA FOUNDATION

TUCSON, AZ · 2025

STUDENT-ATHLETE EXCELLENCE FUND

$10,000

CHILDREN'S ADVOCACY CENTER OF SOUTHERN ARIZONA

TUCSON, AZ · 2025

PROGRAM SUPPORT

$7,500

SOUTHERN ARIZONA ADAPTIVE SPORTS

TUCSON, AZ · 2025

PROGRAM SUPPORT

$5,000

Showing up to 5 of 41 total records — full history available with membership.

Officers & Directors

PRESIDENT William Assenmacher

Officer compensation and complete director data available with membership.

Top Grant Purposes

PROGRAM SUPPORT

$427,800 35 grants

STEWARD OBSERVATORY

$100,000 1 grant

BISHOP'S HOUSE RENOVATION PROJECT

$10,000 1 grant

STUDENT-ATHLETE EXCELLENCE FUND

$10,000 1 grant

PURCHASE OF BALL MACHINE AND PROGRAM SUPPORT

$2,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2025	$92K	$71K	$320K
2024	$63K	$116K	$298K
2023	$65K	$65K	$351K
2022	$88K	$73K	$352K
2021	$149K	$115K	$336K

Between 2021 and 2025, reported annual revenue declined from $149K to $92K (-38%), with total assets most recently reported at $320K.

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

Grant Geography

Grants from this foundation were reported to recipients in AZ, DC, VA.

AZDCVA

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

See the full picture for ASSENMACHER FOUNDATION

Complete financials, all 41 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

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