Private Foundation

MARINUS AND MINNA B KOSTER FOUNDATION

MARINUS AND MINNA B KOSTER FOUNDATION is a Private Foundation headquartered in POTOMAC FALLS, VA. Financial data from the 2024 filing: $464K revenue, $330K expenses, $7.0M total assets. IRS filings disclose 154 grants awarded by this foundation, totaling roughly $1.5M.

EIN: 271533411 POTOMAC FALLS, VA Latest filing: 2024
Total Revenue$464K
Total Expenses$330K
Total Assets$7.0M
Grants Given154
Grant Total$1.5M
Filing Years2019–2024

Sample Grants Given

EDLAVITCH JEWISH COMMUNITY CENTER OF WASHINGTON DC
WASHINGTON, DC · 2023
TO SUPPORT THE FOURTH YEAR OF THEATER J'S YIDDISH THEATER LAB, A PROGRAM DEVOTED TO DEVELOPING NEW AUDIENCES FOR, NEW ADAPTATIONS OF, AND NEW DIRECTORIAL APPROACHES TO WORK FROM THE YIDDISH THEATER CANON.
$26,000
SITAR ARTS CENTER
WASHINGTON, DC · 2023
TO SUPPORT SITAR'S SY22-23 INSTRUMENTAL MUSIC ACADEMY, WHICH PROVIDES PRIVATE LESSONS, GROUP ENSEMBLE, AND MUSIC EDUCATION CLASSES TO 200-225 DC STUDENTS EACH SCHOOL YEAR, 80% OF WHOM ARE FROM LOW-INCOME BACKGROUNDS.
$15,000
PENNSYLVANIA WOMEN WORK
PITTSBURGH, PA · 2023
TO ASSIST REFUGEES AND IMMIGRANTS IN PITTSBURGH WHO ARE SEEKING TO RESTART THEIR CAREERS OR IMPROVE THEIR LEVEL OF EMPLOYMENT.
$15,000
DC YOUTH ORCHESTRA PROGAM
WASHINGTON, DC · 2023
SUPPORT FOR THE TALENT DEVELOPMENT PROGRAM; OFFERING PRIVATE LESSONS, MENTORSHIP, PERFOMANCE OPPORTUNITIES, AND SUMMER LEARNING OPPORTUNITIES.
$15,000
STRATHMORE HALL FOUNDATION
NORTH BETHESDA, MD · 2023
TO PROVIDE SUPPORT TO EAST COUNTY STRINGS PROGRAM, WHICH PROVIDES FREE MUSIC EDUCATION LESSONS TO PUBLIC MIDDLE SCHOOL STUDENTS IN EASTERN MONTGOMERY COUNTY, MARYLAND
$15,000

Showing up to 5 of 154 total records — full history available with membership.

Officers & Directors

SECRETARY Barbara Freedman
TREASURER Michael T Flynn
ADVISOR Miriam Isaacs
PRESIDENT Rosette M Wills
ADVISOR Sterling E Scroggins

Officer compensation and complete director data available with membership.

Top Grant Purposes

SUPPORT MUSIC EDUCATION FOR MUSICALLY-TALENTED YOUTH AND YOUNG ADULTS
$230,000 24 grants
PRESERVATION OF YIDDISH LANGUAGE & CULTURE
$181,000 23 grants
AID JEWISH IMMIGRANTS WITH HOUSING, LANGUAGE, JOB TRAINING AND OTHER ASSISTANCE
$155,000 14 grants
TO SUPPORT THE FOURTH YEAR OF THEATER J'S YIDDISH THEATER LAB, A PROGRAM DEVOTED TO DEVELOPING NEW AUDIENCES FOR, NEW ADAPTATIONS OF, AND NEW DIRECTORIAL APPROACHES TO WORK FROM THE YIDDISH THEATER CANON.
$103,000 4 grants
TO ASSIST REFUGEES AND IMMIGRANTS IN PITTSBURGH WHO ARE SEEKING TO RESTART THEIR CAREERS OR IMPROVE THEIR LEVEL OF EMPLOYMENT.
$66,000 4 grants

Financial Trends

Year Revenue Expenses Assets
2024 $464K $330K $7.0M
2023 $212K $326K $6.3M
2021 $203K $344K $6.9M
2020 $223K $303K $5.1M
2019 $114K $333K $5.2M

Between 2019 and 2024, reported annual revenue grew from $114K to $464K (+306%), with total assets most recently reported at $7.0M.

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

Grant Geography

Grants from this foundation were reported to recipients in DC, MA, MD, NY, PA, VA.

DCMAMDNYPAVA

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

See the full picture for MARINUS AND MINNA B KOSTER FOUNDATION

Complete financials, all 154 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

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