Marinus and Minna B Koster Foundation Inc
Private foundation · Potomac Falls, VA · EIN 27-1533411 · reported 2023–2025 · files as Marinus and Minna B Koster Foundation
54grants reported
$10Kmedian award
$8,000lower quartile
$5,000smallest grant
$615Ktotal paid
5states reached
3years giving
This foundation funds faith-based organizations. 6 of its 54 reported grants went to churches, ministries or other religious organizations, $113K in total. That is what it paid, not what it says in a policy.
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
46534 Cedarhurst Dr
Potomac Falls, VA 20165-6451
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Edlavitch Jewish Community Center of DC THEATER J'S YIDDISH THEATER LAB | Washington, DC | $30,000 |
| Edlavitch Jewish Community Center of Washington DC TO SUPPORT THE FOURTH YEAR OF THEATER J'S YIDDISH THEATER LAB, A PROGRAM DEVOTED TO DEVELOPING NEW A | Washington, DC | $26,000 |
| Edlavitch Jewish Community Center of Washington DC TO SUPPORT THE FOURTH YEAR OF THEATER J'S YIDDISH THEATER LAB, A PROGRAM DEVOTED TO DEVELOPING NEW A | Washington, DC | $26,000 |
| DC Youth Orchestra Program 2025-2026 TALENT DEVELOPMENT PROGRAM | Washington, DC | $20,000 |
| Pennsylvania Women Work REFUGEE & IMMIGRANT SERVICES FOR EMPLOYMENT | Pittsburgh, PA | $18,000 |
| Sitar Arts Center 2025-2026 INSTRUMENTAL MUSIC ACADEMY | Washington, DC | $18,000 |
| DC Youth Orchestra Program SUPPORT FOR THE TALENT DEVELOPMENT PROGRAM; OFFERING PRIVATE LESSONS, MENTORSHIP, PERFOMANCE OPPORTU | Washington, DC | $17,000 |
| Sitar Arts Center TO SUPPORT SITAR'S SY22-23 INSTRUMENTAL MUSIC ACADEMY, WHICH PROVIDES PRIVATE LESSONS, GROUP ENSEMBL | Washington, DC | $16,000 |
| University of Maryland College Park Foundation NATIONAL ORCHESTRAL INSTITUTE +FESTIVAL SCHOLARSHIPS | College Park, MD | $15,000 |
| Pennsylvania Women Work TO ASSIST REFUGEES AND IMMIGRANTS IN PITTSBURGH WHO ARE SEEKING TO RESTART THEIR CAREERS OR IMPROVE | Pittsburgh, PA | $15,000 |
| DC Youth Orchestra Progam SUPPORT FOR THE TALENT DEVELOPMENT PROGRAM; OFFERING PRIVATE LESSONS, MENTORSHIP, PERFOMANCE OPPORTU | Washington, DC | $15,000 |
| Pennsylvania Women Work TO ASSIST REFUGEES AND IMMIGRANTS IN PITTSBURGH WHO ARE SEEKING TO RESTART THEIR CAREERS OR IMPROVE | Pittsburgh, PA | $15,000 |
| Sitar Arts Center TO SUPPORT SITAR'S SY22-23 INSTRUMENTAL MUSIC ACADEMY, WHICH PROVIDES PRIVATE LESSONS, GROUP ENSEMBL | Washington, DC | $15,000 |
| Strathmore Hall Foundation TO PROVIDE SUPPORT TO EAST COUNTY STRINGS PROGRAM, WHICH PROVIDES FREE MUSIC EDUCATION LESSONS TO PU | North Bethesda, MD | $15,000 |
| Center for Traditional Music and Dance YIDDISH NEW YORK | New York, NY | $13,000 |
| American Youth Philharmonic Orchestras 2025-2026 TUITION ASSISTANCE PROGRAM | Annandale, VA | $12,000 |
| Avodah - the Jewish Service Corps SUPPORT FOR THE SERVICE CORPS IMMERSIVE PROGRAM | New York, NY | $11,000 |
| American University SUMMER STUDY GRANTS FOR MUSIC MAJORS- KOSTER FDN | Washington, DC | $10,000 |
| Avodah the Jewish Service Corps ENHANCING THE CAPACITY OF IMMIGRATION NONPROFITS | New York, NY | $10,000 |
| End Sijs Backlog Coalition NATIONAL IMMIGRATION PROJECT-NATIONAL LAWYERS GUILD - IMMIGRANT YOUTH PROGRAM | Washington, DC | $10,000 |
| Strathmore Hall Foundation EAST COUNTY STRINGS (ECS) | North Bethesda, MD | $10,000 |
| Strathmore Hall Foundation STRATHMORE YOUTH CHORUS | North Bethesda, MD | $10,000 |
| The Forward Association THE FORVERTS | New York, NY | $10,000 |
| The Workers Circle YIDDISH TODAY AND FOREVER | New York, NY | $10,000 |
| American Youth Philharmonic Orchestras TUITION ASSISTANCE PROGRAM FOR LOW-INCOME STUDENTS IN NORTHERN VIRGINIA. | Annandale, VA | $10,000 |
| In Geveb Inc GENERAL OPERATIONAL SUPPORT FOR THE CONTINUED PUBLICATION OF IN GEVEB: A JOURNAL OF YIDDISH STUDIES. | New York, NY | $10,000 |
| Strathmore Hall Foundation TO PROVIDE SUPPORT TO EAST COUNTY STRINGS PROGRAM, WHICH PROVIDES FREE MUSIC EDUCATION LESSONS TO PU | North Bethesda, MD | $10,000 |
| The Workers Circle TO SUPPORT COMPREHENSIVE, INTEGRATED PROGRAMS TO TEACH AND PROMOTE APPRECIATION OF THE YIDDISH LANGU | New York, NY | $10,000 |
| Yiddish New York TO HELP PROMOTE/FUND MUSIC AND DANCE PROJECTS FOR JEWISH CULTURE. | New York, NY | $10,000 |
| American University SUMMER MUSIC STUDY FOR AU MUSIC MAJORS TO BE DONE OFF CAMPUS. | Washington, DC | $10,000 |
| American Youth Philharmonic Orchestra TUITION ASSISTANCE PROGRAM FOR LOW-INCOME STUDENTS IN NORTHERN VIRGINIA. | Annandale, VA | $10,000 |
| Avodah - the Jewish Service Corps SUPPORT FOR THE SERVICE CORPS IMMERSIVE PROGRAM | New York, NY | $10,000 |
| Center for Traditional Music & Dance TO HELP PROMOTE/FUND MUSIC AND DANCE PROJECTS FOR JEWISH CULTURE. | New York, NY | $10,000 |
| The Forward Association TO SUPPORT THE PRODUCTION AND GROWTH OF MULTI-MEDIA JOUNALISM AND CONTENT OF THE YIDDISH FORVERTS, W | New York, NY | $10,000 |
| The National Immigration Project TO SUPPORT INNOVATIVE PROGRAMS, RESEARCH, AND STRATEGIC LEGAL ADVOCACY AIMED AT SHAPING FAIR AND JUS | Washington, DC | $10,000 |
| The Workers Circle TO SUPPORT COMPREHENSIVE, INTEGRATED PROGRAMS TO TEACH AND PROMOTE APPRECIATION OF THE YIDDISH LANGU | New York, NY | $10,000 |
| DI Goldene Keyt Ltd BIRTH AND REBIRTH OF GREAT YIDDISH CHORAL MUSIC | New York, NY | $8,000 |
| Edu-Futuro WORKFORCE DEVELOPMENT SERVICES FOR IMMIGRANT FAMILIES | Arlington, VA | $8,000 |
| In Geveb Inc IN GEVEB: A JOURNAL OF YIDDISH STUDIES | New York, NY | $8,000 |
| American University SUMMER MUSIC STUDY FOR AU MUSIC MAJORS TO BE DONE OFF CAMPUS. | Washington, DC | $8,000 |
| Washington Conservatory of Music FOR THE SUPPORT OF MERIT-BASED SCHOLARSHIPS FOR INDIVIDUAL LESSONS AS PART OF THE STUDENT SCHOLARSHI | Bethesda, MD | $8,000 |
| Edu-Futuro TO SUPPORT FOR THE EMERGING LEADERS PROGRAM | Arlington, VA | $8,000 |
| In Geveb Inc GENERAL OPERATIONAL SUPPORT FOR THE CONTINUED PUBLICATION OF IN GEVEB: A JOURNAL OF YIDDISH STUDIES. | New York, NY | $8,000 |
| The Washington Conservatory of Music SUPPORT OF MERIT-BASED SCHOLARSHIPS FOR INDIVIDUAL LESSONS AS PART OF THE STUDENT SCHOLARSHIP PROGRA | Bethesda, MD | $8,000 |
| University of Maryland College Park Foundation TO PROVIDE SCHOLARSHIPS THAT ASSIST STUDENTS FOR PERFORMING ARTS STUDIES AND PROGRAMS. | College Park, MD | $8,000 |
| Edu-Futuro SUPPORT FOR THE EMERGING LEADERS PROGRAM | Arlington, VA | $7,500 |
| Levine Music Inc TO SUPPORT THREE SPECIAL EVENTS THAT ELEVATE THE LEARNING EXPERIENCES OF YOUR MUSIC STUDENTS: A SOLO | Washington, DC | $7,500 |
| University of Maryland College Park Foundation TO PROVIDE SCHOLARSHIPS THAT ASSIST STUDENTS FOR PERFORMING ARTS STUDIES AND PROGRAMS. | College Park, MD | $7,000 |
| Yiddish Music DI Goldene Keyt Ltd Support and Creation GENERAL SUPPORT FOR MUSIC AND DANCE PROJECTS FRO YIDDISH CULTURE. | New York, NY | $7,000 |
| DI Goldene Keyt Ltd GENERAL SUPPORT FOR MUSIC AND DANCE PROJECTS FROM YIDDISH CULTURE. | New York, NY | $7,000 |
| Levine Music Inc ENRICHED MUSICAL LEARNING OPPORTUNITIES FOR YOUTH | Washington, DC | $5,000 |
| The Forward Association TO SUPPORT THE PRODUCTION AND GROWTH OF MULTI-MEDIA JOUNALISM AND CONTENT OF THE YIDDISH FORVERTS, W | New York, NY | $5,000 |
| Hias TO SUPPORT VITAL SERVICES FOR REFUGEES AND ASYLUM SEEKERS WORLDWIDE, PROVIDING THEM WITH THE NECESSA | Silver Spring, MD | $5,000 |
| Levine School of Music TO SUPPORT THREE SPECIAL EVENTS THAT ELEVATE THE LEARNING EXPERIENCES OF YOUR MUSIC STUDENTS: A SOLO | Washington, DC | $5,000 |
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