· Private foundation
Marinus and Minna B Koster Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k4 grants · $29k
- $10k–50k14 grants · $196k
| Recipient | Amount |
|---|---|
| EDLAVITCH JEWISH COMMUNITY CENTER OF DC | $30,000 |
| DC YOUTH ORCHESTRA PROGRAM | $20,000 |
| PENNSYLVANIA WOMEN WORK | $18,000 |
| SITAR ARTS CENTER | $18,000 |
| UNIVERSITY OF MARYLAND COLLEGE PARK FOUNDATION | $15,000 |
| CENTER FOR TRADITIONAL MUSIC AND DANCE | $13,000 |
| AMERICAN YOUTH PHILHARMONIC ORCHESTRAS | $12,000 |
| AVODAH THE JEWISH SERVICE CORPS | $10,000 |
| STRATHMORE HALL FOUNDATION | $10,000 |
| THE WORKERS CIRCLE | $10,000 |
| END SIJS BACKLOG COALITION | $10,000 |
| AMERICAN UNIVERSITY | $10,000 |
| STRATHMORE HALL FOUNDATION | $10,000 |
| THE FORWARD ASSOCIATION | $10,000 |
| DI GOLDENE KEYT LTD | $8,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY18–25, $168k) land where the poverty rate runs at 11%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
How this is measured
Where the work is directed
The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.
About 5% of Marinus and Minna B Koster Foundation’s grant dollars are earmarked for a different county than the recipient’s own address.
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +29% since the first grant, against -14% for those funded once.
26 repeat relationships: 15 still active in FY2025, 11 since wound down; 2 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 82% of grant dollars renewed an existing relationship; $40k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- EJEDLAVITCH JEWISH COMMUNITY CENTER OF WASHINGTON DC INC7× · 2018–2024 · $164k · revenue +22%
- PWPENNSYLVANIA WOMEN WORK8× · 2018–2025 · $126k · revenue +47%
DC YOUTH ORCHESTRA PROGRAM8× · 2018–2025 · $126k · revenue +57%
Funded once
- TJTHE JEWISH SERVICE CORPSone grant, 2022 · $13k
- LSLUTHERAN SOCIAL SERVICES NATIONAL CAPITAL AREAINCone grant, 2022 · $12k · revenue -14%
WORLD CENTRAL KITCHEN INCone grant, 2022 · $12k · revenue -40%
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
For over 150 years, the 92nd street y, new york has been serving its communities and the larger world by bringing people together (continued on schedule o)and providing exceptional, groundbreaking programs in the performing and visual…
Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…
The weitzman national museum of american jewish history, on independence mall in philadelphia, presents educational programs and experiences that preserve, explore, and celebrate the history of jews in america. its purpose is to connect…
Move|nyc| is a civic arts and social justice organization committed to cultivating a more diverse and inclusive society through transforming the field of professional dance. more than an arts organization, move|nyc| is a movement for…
For more than a century, diller-quaile has offered an environment where music can flourish in all its aspects, enriching the lives of students of all ages and cultural backgrounds. the belief that music is a fundamental part of human life…
The san francisco jazz organization (the organization) is a recognized international leader in jazz creation, presentation, and education. the organization explores the full spectrum of jazz, from the music's origins in the african…
The mission of the organization is to discover and launch the careers of extraordinary young classical musicians, and to expand the reach and relevance of classical music.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
The mission of the annapolis symphony orchestra is to inspire, educate and enrich lives near and far by creating extraordinary musical experiences with uncompromising artistic excellence.
Equity arc is a coalition charged by its diverse membership of local and national organizations to align, promote, and develop equitable opportunities for aspiring classical musicians from underrepresented ethnicities.
AJC's mission is to enhance the wellbeing of the Jewish people and Israel, and to advance human rights and democratic values in the United States and around the world. In pursuit of this mission, AJC advances democratic principles, fights…
Prepares gifted graduates of prestigious music programs for successful careers in orchestras and ensembles.
How this is measured
26 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 26 of the 42 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds EDLAVITCH JEWISH COMMUNITY CENTER OF WASHINGTON DC INC ↗
- Who funds PENNSYLVANIA WOMEN WORK ↗
- Who funds DC YOUTH ORCHESTRA PROGRAM ↗
- Who funds SITAR ARTS CENTER ↗
- Who funds The Forward Association Inc ↗
- Who funds AMERICAN UNIVERSITY ↗
- Who funds In Geveb Inc ↗
- Who funds UNIVERSITY OF MARYLAND COLLEGE PARK FOUNDATION INC ↗
- Who funds AMERICAN YOUTH PHILHARMONIC ORCHESTRAS ↗
- Who funds THE WASHINGTON CONSERVATORY OF MUSIC ↗
- Who funds THE STRATHMORE HALL FOUNDATION INC ↗
- Who funds LEVINE MUSIC INC ↗
- Who funds BLUES ALLEY JAZZ SOCIETY ↗
- Who funds Center for Traditional Music and Dance Inc ↗
- Who funds EDU-FUTURO ↗
- Who funds AVODAH THE JEWISH SERVICE CORPS INC ↗
- Who funds BENDER JCC OF GREATER WASHINGTON ↗
- Who funds LUTHERAN SOCIAL SERVICES NATIONAL CAPITAL AREAINC ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds NATIONAL IMMIGRATION PROJECT OF THE NATIONAL LAWYERS GUILD INC ↗
- Who funds MIGRATION RESOURCE CENTER ↗
- Who funds JEWISH SOCIAL SERVICE AGENCY ↗
- Who funds HIAS INC ↗
- Who funds PLYMOUTH PHILHARMONIC ORCHESTRA INC ↗
- Who funds JEWISH FAMILY AND CHILDREN'S SERVICE OF PITTSBURGH ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Clark-Winchcole Foundation · The Morris and Gwendolyn Cafritz Foundation · Greater Washington Community Foundation · Galena-Yorktown Foundation · Dimick Foundation John M Lynham Jr Trustee · Dallas Morse Coors Foundation for the Performing Arts · Howard and Geraldine Polinger Family Foundation · World Bank Community Connections Fund · Philip L Graham Fund co Graham Holdings Company · Hattie M Strong Foundation · Harman Family Foundation · Arts and Humanities Council of Montgomer
How this is measured
How much its grantees rely on government
Each dot is one organization Marinus and Minna B Koster Foundation funds: left to right is the share of its income from government, bottom to top the share from Marinus and Minna B Koster Foundation. Bigger dots raise more.
- Hias Inc: 88% of income from government
- The Strathmore Hall Foundation Inc: 7% of income from government
- Bender Jcc of Greater Washington: 1% of income from government
- Jewish Social Service Agency: 1% of income from government
How this is measured
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