Data / Foundation grants / Marinus and Minna B Koster Foundation
Marinus and Minna B Koster Foundation: 18 grants to organizations, $225,000 (tax year ended June 2025)
Marinus and Minna B Koster Foundation, a private foundation in Potomac Falls, VA, paid 18 grants to organizations totaling $225,000 in its tax year ended June 2025, according to its Form 990-PF filed with the IRS on May 12, 2026. The largest was $30,000 to Edlavitch Jewish Community Center of DC in Washington, DC for theater j's yiddish theater lab.
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- EIN
- 271533411
- Based in
- Potomac Falls, VA
- Assets
- $7,538,830
- Grants paid
- $225,000
- Tax year ended
- June 2025
Grants paid, tax year ended June 2025
From the Form 990-PF filed May 12, 2026, IRS object ID 202641329349104594. It reported $225,000 in grants paid; 18 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Edlavitch Jewish Community Center of DC | Washington, DC | Theater j's yiddish theater lab | $30,000 | apps.irs.gov | |
| DC Youth Orchestra Program | Washington, DC | 2025-2026 talent development program | Arts, culture and humanities | $20,000 | apps.irs.gov |
| Pennsylvania Women Work | Pittsburgh, PA | Refugee & immigrant services for employment | $18,000 | apps.irs.gov | |
| Sitar Arts Center | Washington, DC | 2025-2026 instrumental music academy | Arts, culture and humanities | $18,000 | apps.irs.gov |
| University of Maryland College Park Foundation | College Park, MD | National orchestral institute +festival scholarships | Education | $15,000 | apps.irs.gov |
| Center for Traditional Music and Dance | New York, NY | Yiddish new york | Arts, culture and humanities | $13,000 | apps.irs.gov |
| American Youth Philharmonic Orchestras | Annandale, VA | 2025-2026 tuition assistance program | Arts, culture and humanities | $12,000 | apps.irs.gov |
| American University | Washington, DC | Summer study grants for music majors- koster fdn | Education | $10,000 | apps.irs.gov |
| Avodah the Jewish Service Corps | New York, NY | Enhancing the capacity of immigration nonprofits | $10,000 | apps.irs.gov | |
| End Sijs Backlog Coalition | Washington, DC | National immigration project-national lawyers guild - immigrant youth program | $10,000 | apps.irs.gov | |
| Strathmore Hall Foundation | North Bethesda, MD | East county strings (ecs) | Arts, culture and humanities | $10,000 | apps.irs.gov |
| Strathmore Hall Foundation | North Bethesda, MD | Strathmore youth chorus | Arts, culture and humanities | $10,000 | apps.irs.gov |
| The Forward Association | New York, NY | The forverts | Arts, culture and humanities | $10,000 | apps.irs.gov |
| The Workers Circle | New York, NY | Yiddish today and forever | $10,000 | apps.irs.gov | |
| Di Goldene Keyt LTD | New York, NY | Birth and rebirth of great yiddish choral music | $8,000 | apps.irs.gov | |
| Edu-Futuro | Arlington, VA | Workforce development services for immigrant families | Education | $8,000 | apps.irs.gov |
| In Geveb Inc | New York, NY | In geveb: a journal of yiddish studies | Arts, culture and humanities | $8,000 | apps.irs.gov |
| Levine Music Inc | Washington, DC | Enriched musical learning opportunities for youth | Arts, culture and humanities | $5,000 | apps.irs.gov |
Grants paid, tax year ended June 2024
From the Form 990-PF filed December 24, 2024, IRS object ID 202423599349100502. It reported $205,000 in grants paid; 19 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Edlavitch Jewish Community Center of Washington DC | Washington, DC | 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 ca | $26,000 | apps.irs.gov | |
| DC Youth Orchestra Progam | Washington, DC | Support for the talent development program; offering private lessons, mentorship, perfomance opportunities, and summer learning opportunities. | $15,000 | apps.irs.gov | |
| Pennsylvania Women Work | Pittsburgh, PA | To assist refugees and immigrants in pittsburgh who are seeking to restart their careers or improve their level of employment. | $15,000 | apps.irs.gov | |
| Sitar Arts Center | Washington, DC | 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-inc | Arts, culture and humanities | $15,000 | apps.irs.gov |
| Strathmore Hall Foundation | North Bethesda, MD | To provide support to east county strings program, which provides free music education lessons to public middle school students in eastern montgomery county, maryland | Arts, culture and humanities | $15,000 | apps.irs.gov |
| American University | Washington, DC | Summer music study for au music majors to be done off campus. | Education | $10,000 | apps.irs.gov |
| American Youth Philharmonic Orchestra | Annandale, VA | Tuition assistance program for low-income students in northern virginia. | $10,000 | apps.irs.gov | |
| Avodah - the Jewish Service Corps | New York, NY | Support for the service corps immersive program | $10,000 | apps.irs.gov | |
| Center for Traditional Music & Dance | New York, NY | To help promote/fund music and dance projects for jewish culture. | Arts, culture and humanities | $10,000 | apps.irs.gov |
| The Forward Association | New York, NY | To support the production and growth of multi-media jounalism and content of the yiddish forverts, which brings yiddish language and culture to thousands of people every day. | Arts, culture and humanities | $10,000 | apps.irs.gov |
| The National Immigration Project | Washington, DC | To support innovative programs, research, and strategic legal advocacy aimed at shaping fair and just immigration policies in the united states, while collaborating with diverse stakeholders to advanc | $10,000 | apps.irs.gov | |
| The Workers Circle | New York, NY | To support comprehensive, integrated programs to teach and promote appreciation of the yiddish language, culture, history, and traditions to a diverse audience of adults, students, and children across | $10,000 | apps.irs.gov | |
| Edu-Futuro | Arlington, VA | To support for the emerging leaders program | Education | $8,000 | apps.irs.gov |
| In Geveb Inc | New York, NY | General operational support for the continued publication of in geveb: a journal of yiddish studies. | Arts, culture and humanities | $8,000 | apps.irs.gov |
| The Washington Conservatory of Music | Bethesda, MD | Support of merit-based scholarships for individual lessons as part of the student scholarship program at the washington conservatory of music. | $8,000 | apps.irs.gov | |
| University of Maryland College Park Foundation | College Park, MD | To provide scholarships that assist students for performing arts studies and programs. | Education | $8,000 | apps.irs.gov |
| Di Goldene Keyt LTD | New York, NY | General support for music and dance projects from yiddish culture. | $7,000 | apps.irs.gov | |
| Hias | Silver Spring, MD | To support vital services for refugees and asylum seekers worldwide, providing them with the necessary resources and advocacy to rebuild their lives with dignity and security, in line with jewish valu | International, foreign affairs and national security | $5,000 | apps.irs.gov |
| Levine School of Music | Washington, DC | To support three special events that elevate the learning experiences of your music students: a solo competition, a concerto competition and a faculty/student orchestra concert for winners of the conc | $5,000 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Arts, culture and humanities | $164,000 |
| Education | $59,000 |
| International, foreign affairs and national security | $5,000 |
States funded
| Recipient state | Granted |
|---|---|
| District of Columbia | $174,000 |
| New York | $114,000 |
| Maryland | $71,000 |
| Virginia | $38,000 |
| Pennsylvania | $33,000 |
Also on SpecStream
- Who funds arts, culture and humanities in New York
- Who funds arts, culture and humanities in District of Columbia
- Who funds arts, culture and humanities in Maryland
- Who funds education in Maryland
- Who funds education in District of Columbia
- Who funds education in Virginia
Updated May 12, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.