Private Foundation

THE WILLIAM AND DIANE NITTERHOUSE FOUNDATION

THE WILLIAM AND DIANE NITTERHOUSE FOUNDATION is a private foundation categorized as Private Foundation based in CHAMBERSBURG, PA. Its most recent IRS filing (2025) reports revenue of $32K, expenses of $8K, total assets of $661K. Imperigo tracks 42 reported grants from this foundation totaling approximately $930K.

EIN: 232493715 CHAMBERSBURG, PA Latest filing: 2025

Total Revenue$32K

Total Expenses$8K

Total Assets$661K

Grants Given42

Grant Total$930K

Filing Years2021–2025

Sample Grants Given

FRANKLIN COUNTY LIBRARY - LADIES AFTERNOON CLUB

CHAMBERSBURG, PA · 2024

GENERAL DONATIOJN

$600

NEW BIRTH COUNCIL OF FREEDOM

DILSBURG, PA · 2024

GENERAL DONATION

$500

NATIONAL PARK FOUNDATION

BALTIMORE, MD · 2024

GENERAL DONATION

$125

FRANKLIN COUNTY LIBRARY - LADIES AFTERNOON CLUB

CHAMBERSBURG, PA · 2023

GENERAL DONATIOJN

$500

ST THOMAS LUTHERAN CHURCH - BUILDING FUND

ST THOMAS, PA · 2023

GENERAL DONATION

$500

Showing up to 5 of 42 total records — full history available with membership.

Officers & Directors

TRUSTEE Diane R Nitterhouse

TRUSTEE Karen N Diller

TRUSTEE Laura E Martin

TRUSTEE William K Nitterhouse

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Donation

$927,757 36 grants

GENERAL DONATION

$1,225 4 grants

GENERAL DONATIOJN

$1,100 2 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$32K	$8K	$661K
2024	$22K	$3K	$637K
2023	$36K	$2K	$618K
2021	$525K	$931K	$566K

Between 2021 and 2025, reported annual revenue declined from $525K to $32K (-94%), with total assets most recently reported at $661K.

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

Grant Geography

Grants from this foundation were reported to recipients in DC, KS, MD, NH, PA, TN, and 2 other states.

DCKSMDNHPATNVAWV

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

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