Funding search · EIN 871478973 · Wilmington, DE
Marci and Martin Karplus Family Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 129
- grants reported
- $406,634
- total given
- 2022–2025
- filing years
- $750
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- President & Fellows of Harvard College1 grant · $150,000
- Stimultania1 grant · $41,434
- Cambridge Public Library Foundation1 grant · $25,000
- Unrwa USA National Committee3 grants · $13,500
- New England Innocence Project3 grants · $13,500
- Human Rights Watch3 grants · $10,500
- Fiscal Sponsorship Allies1 grant · $10,000
- Huntington Theatre Company1 grant · $10,000
- Political Asylum Immigration Representation Projec3 grants · $10,000
- Coalition for Humane Immigrant Rights3 grants · $9,500
Giving over time
Grant history
The 100 largest of 129 grants.
- $150,000
President & Fellows of Harvard College · Cambridge, MA · 2022
Karplus Fellowship Support Fund
- $41,434
Stimultania · 2023
General & Unrestricted
- $25,000
Cambridge Public Library Foundation · Cambridge, MA · 2022
endowment fund: Marci and Martin Karplus Family Fund
- $10,000
Fiscal Sponsorship Allies · Indianapolis, IN · 2022
Cash for Refugees Program
- $10,000
Huntington Theatre Company · Boston, MA · 2022
General & Unrestricted
- $5,000
Unrwa USA National Committee · Washington, DC · 2024
General & Unrestricted
- $5,000
Unrwa USA National Committee · Washington, DC · 2023
General & Unrestricted
- $4,500
New England Innocence Project · Cambridge, MA · 2024
General & Unrestricted
- $4,500
New England Innocence Project · Cambridge, MA · 2023
General & Unrestricted
- $4,500
New England Innocence Project · Cambridge, MA · 2022
General & Unrestricted
- $4,000
Political Asylum Immigration Representation Projec · Boston, MA · 2022
General & Unrestricted
- $3,500
Coalition for Humane Immigrant Rights · Los Angeles, CA · 2024
General & Unrestricted
- $3,500
Human Rights Watch · New York, NY · 2024
General & Unrestricted
- $3,500
Political Asylum Immigration Representation Projec · Boston, MA · 2024
General & Unrestricted
- $3,500
World Central Kitchen Incorporated · Washington, DC · 2024
General & Unrestricted
- $3,500
Human Rights Watch · New York, NY · 2023
General & Unrestricted
- $3,500
Human Rights Watch · New York, NY · 2022
General & Unrestricted
- $3,500
Planned Parenthood Global · New York, NY · 2022
General & Unrestricted
- $3,500
Unrwa USA National Committee · Washington, DC · 2022
General & Unrestricted
- $3,000
Coalition for Humane Immigrant Rights · Los Angeles, CA · 2023
General & Unrestricted
- $3,000
Coalition for Humane Immigrant Rights · Los Angeles, CA · 2022
General & Unrestricted
- $2,500
International Rescue Committee · Albert Lea, MN · 2024
General & Unrestricted
- $2,500
Medecins Sans Frontieres USA · New York, NY · 2024
General & Unrestricted
- $2,500
National Alliance On Mental Illness Cambridge Midd · Cambridge, MA · 2024
General & Unrestricted
- $2,500
Planned Parenthood League of Massachusetts · Boston, MA · 2024
General & Unrestricted
- $2,500
United States Fund for Unicef · New York, NY · 2024
General & Unrestricted
- $2,500
University of St Thomas · Saint Paul, MN · 2024
General & Unrestricted
- $2,500
Wgbh Educational Foundation · Boston, MA · 2024
General & Unrestricted
- $2,500
Cambridge Center for Adult Education · Cambridge, MA · 2023
Studio classes in painting
- $2,500
Medecins Sans Frontieres USA · Hagerstown, MD · 2023
General & Unrestricted
- $2,500
Political Asylum Immigration Representation Projec · Boston, MA · 2023
General & Unrestricted
- $2,500
World Central Kitchen Incorporated · Washington, DC · 2023
General & Unrestricted
- $2,500
Cambridge Center for Adult Education · Cambridge, MA · 2022
art classes "Painting From Life" fund
- $2,500
International Rescue Committee · Albert Lea, MN · 2022
General & Unrestricted
- $2,500
Medecins Sans Frontieres USA Inc - Doctors Without · Hagerstown, MD · 2022
General & Unrestricted
- $2,500
Nami National · Arlington, VA · 2022
General & Unrestricted
- $2,500
World Central Kitchen Incorporated · Washington, DC · 2022
General & Unrestricted
- $2,000
Tides Foundation · Los Angeles, CA · 2023
General & Unrestricted
- $2,000
United States Fund for Unicef · New York, NY · 2023
General & Unrestricted
- $2,000
University of St Thomas · St Paul, MN · 2023
Under-Told Stories
- $2,000
Apopo US · Washington, DC · 2022
General & Unrestricted
- $2,000
Partners for Youth With Disabilities · Somerville, MA · 2022
General & Unrestricted
- $2,000
Tides Foundation · Los Angeles, CA · 2022
movement voter project
- $2,000
University of St Thomas · St Paul, MN · 2022
Under-Told Stories fund
- $1,700
East Coast Assistance Dogs · Torrington, CT · 2023
General & Unrestricted
- $1,500
Aclu Foundation of Massachusetts · Boston, MA · 2024
General & Unrestricted
- $1,500
American Indian College Fund · Denver, CO · 2024
General & Unrestricted
- $1,500
Amnesty International of the USA · New York, NY · 2024
General & Unrestricted
- $1,500
Tides Foundation · Los Angeles, CA · 2024
General & Unrestricted
- $1,500
Wgbh Educational Foundation · Boston, MA · 2023
PBS News Hour
- $1,500
Aclu Foundation of Massachusetts · Boston, MA · 2022
General & Unrestricted
- $1,500
United States Fund for Unicef · New York, NY · 2022
General & Unrestricted
- $1,200
Amnesty International of the USA · New York, NY · 2023
General & Unrestricted
- $1,200
Amnesty International of the USA · New York, NY · 2022
General & Unrestricted
- $1,000
Wgbh Educational Foundation · Boston, MA · 2022
General & Unrestricted
- $950
Association of American Voices · San Francisco, CA · 2024
General & Unrestricted
- $950
Bidwell Training Center · Pittsburgh, PA · 2024
General & Unrestricted
- $750
Hopewell · Dedham, MA · 2024
General & Unrestricted
- $750
Law Forward · Madison, WI · 2024
General & Unrestricted
- $750
Project Hope the People To People Health Foundatio · Washington, DC · 2024
General & Unrestricted
- $750
Association of American Voices · San Francisco, CA · 2023
General & Unrestricted
- $750
Helping Hands Monkey Helpers for the Disabled · Boston, MA · 2023
General & Unrestricted
- $750
Law Forward · Madison, WI · 2023
General & Unrestricted
- $750
Project Hope the People To People Health Foundatio · Washington, DC · 2023
General & Unrestricted
- $750
Riverside Community Care · Dedham, MA · 2023
General & Unrestricted
- $750
Rosenberg Fund for Children · Easthampton, MA · 2023
General & Unrestricted
- $750
Association of American Voices · Saint Louis, MO · 2022
General & Unrestricted
- $750
Friends of Cambridge Rindge and Latin High School · Cambridge, MA · 2022
General & Unrestricted
- $750
Helping Hands Simian Aides for the Disabled Inc - · Allston, MA · 2022
General & Unrestricted
- $750
Hopewell · Dedham, MA · 2022
General & Unrestricted
- $750
Law Forward · Madison, WI · 2022
General & Unrestricted
- $750
Project Hope the People To People Health Foundatio · Washington, DC · 2022
General & Unrestricted
- $750
Riverside Community Care · Dedham, MA · 2022
General & Unrestricted
- $750
Rosenberg Fund for Children · Easthampton, MA · 2022
General & Unrestricted
- $750
Rosies Place · Boston, MA · 2022
General & Unrestricted
- $600
Society for the Preservation of New England Antiqu · Boston, MA · 2022
General & Unrestricted
- $500
American Indian College Fund · Denver, CO · 2025
General & Unrestricted
- $500
Bidwell Training Center · Pittsburgh, PA · 2025
General & Unrestricted
- $500
Bridges Homeward · Cambridge, MA · 2025
General & Unrestricted
- $500
Cambridge Homes · Cambridge, MA · 2025
General & Unrestricted
- $500
Community Cooks · Somerville, MA · 2025
General & Unrestricted
- $500
Dolores C Huerta Foundation · Bakersfield, CA · 2025
General & Unrestricted
- $500
East Coast Assistance Dogs · Torrington, CT · 2025
General & Unrestricted
- $500
Forward Impact · Los Angeles, CA · 2025
General & Unrestricted
- $500
Helping Hands Monkey Helpers for the Disabled · Allston, MA · 2025
General & Unrestricted
- $500
Hopewell · Dedham, MA · 2025
General & Unrestricted
- $500
Project Hope the People To People Health Foundatio · Washington, DC · 2025
General & Unrestricted
- $500
Spaulding Rehab Hospital Corp · Cambridge, MA · 2025
General & Unrestricted
- $500
Wikimedia Foundation · Washington, DC · 2025
General & Unrestricted
- $500
Bridges Homeward · Cambridge, MA · 2024
General & Unrestricted
- $500
Forward Impact · Los Angeles, CA · 2024
General & Unrestricted
- $500
Friends of Cambridge Rindge and Latin High School · Cambridge, MA · 2024
General & Unrestricted
- $500
Helping Hands Monkey Helpers for the Disabled · Allston, MA · 2024
General & Unrestricted
- $500
Society for the Preservation of New England Antiqu · Haverhill, MA · 2024
General & Unrestricted
- $500
American Indian College Fund · Denver, CO · 2023
Humanities or Science Scholarship Fund
- $500
Bidwell Training Center · Pittsburgh, PA · 2023
General & Unrestricted
- $500
Dolores C Huerta Foundation · Bakersfield, CA · 2023
General & Unrestricted
- $500
Forward Impact · Los Angeles, CA · 2023
General & Unrestricted
- $500
Friends of Cambridge Rindge and Latin High School · Cambridge, MA · 2023
General & Unrestricted
- $500
Rosies Place · Boston, MA · 2023
General & Unrestricted
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

