Funding search · EIN 136015951 · Madison, CT

Leon Lowenstein Foundation

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$28.8M
in grants paid: 376
grants: 224
recipients: 2022–2025
filing years

Recent grants

The 100 largest recent grants from this foundation’s filings, newest year first.

$700,000
Johns Hopkins University · Baltimore, MD · 2025
Charitable
$500,000
National Association of Community Health Centers · Bethesda, MD · 2025
Charitable
$450,000
Mobile Health Care Association · St Louis, MO · 2025
Charitable
$300,000
The Family Van - a Program of Harvard Medical School · Boston, MA · 2025
Charitable
$300,000
Cityschools Collaborative · Washington, DC · 2025
Charitable
$250,000
Climatehaven · New Haven, CT · 2025
Charitable
$250,000
Amalgamated Foundation · Washington, DC · 2025
Charitable
$250,000
Invest in Our Future · New York, NY · 2025
Charitable
$250,000
Groundswell · Washington, DC · 2025
Charitable
$250,000
Coalition for Green Capital · Washington, DC · 2025
Charitable
$225,000
Essential Hospitals Institute · Washington, DC · 2025
Charitable
$225,000
Learn To Be Foundation · West Hollywood, CA · 2025
Charitable
$200,000
Arizona State University Foundation · Tempe, AZ · 2025
Charitable
$200,000
Lawyers for Good Government · Washington, DC · 2025
Charitable
$200,000
Edututorva · Mc Lean, VA · 2025
Charitable
$200,000
Inclusiv · New York, NY · 2025
Charitable
$200,000
City Year · Boston, MA · 2025
Charitable
$150,000
Undauntedk12 · San Francisco, CA · 2025
Charitable
$150,000
Children'S Health Fund · New York, NY · 2025
Charitable
$150,000
Grid Alternatives · Oakland, CA · 2025
Charitable
$150,000
Rare · Arlington, VA · 2025
Charitable
$150,000
Schoolhouse Connection · Washington, DC · 2025
Charitable
$125,000
The Neurodiversity Alliance · New York, NY · 2025
Charitable
$125,000
Sustainenergyfinance · Salt Lake City, UT · 2025
Charitable
$125,000
Feeding America · Chicago, IL · 2025
Charitable
$125,000
Wayne State University · Detroit, MI · 2025
Charitable
$100,000
School-Based Health Alliance · Washington, DC · 2025
Charitable
$100,000
Peer Power Foundation · Memphis, TN · 2025
Charitable
$75,000
Throughline Learning · Providence, RI · 2025
Charitable
$75,000
Sacred Heart University Horizons · Fairfield, CT · 2025
Charitable
$50,000
National Association of Rural Health Clinics · Fremont, MI · 2025
Charitable
$50,000
Epic Theatre Center Inc (Dba Epic Theatre Ensemble) · New York, NY · 2025
Charitable
$50,000
National Rural Health Association · Washington, DC · 2025
Charitable
$50,000
Boys & Girls Club of Greenwich-for Capital Campaign · Greenwich, CT · 2025
Charitable
$40,000
Institute for Nonprofit Practice · Needham, MA · 2025
Charitable
$35,000
World Central Kitchen · Washington, DC · 2025
Charitable
$35,000
The Poetry Society of America · Brooklyn, NY · 2025
Charitable
$35,000
Rachel'S Network · New York, NY · 2025
Charitable
$30,000
Get Lit - Words Ignite · Los Angeles, CA · 2025
Charitable
$30,000
The Stronghold · Portland, OR · 2025
Charitable
$30,000
Venice Family Clinic · Venice, CA · 2025
Charitable
$30,000
Trustees of Tufts College · Boston, MA · 2025
Charitable
$30,000
Boys & Girls Club of Greenwich · Greenwich, CT · 2025
Charitable
$30,000
International Institute of New England · Boston, MA · 2025
Charitable
$30,000
Multiplier · San Francisco, CA · 2025
Charitable
$25,000
Beth Israel Deaconess Medical Center · Boston, MA · 2025
Charitable
$25,000
Los Angeles Fire Department Foundation · Los Angeles, CA · 2025
Charitable
$25,000
Cedars Sinai Medical Center · Los Angeles, CA · 2025
Charitable
$25,000
Conservation International · Arlington, VA · 2025
Charitable
$25,000
Hurricane Island Foundation · Rockland, ME · 2025
Charitable
$25,000
Jewish Community Relations Council of Greater Boston · Boston, MA · 2025
Charitable
$25,000
Los Angeles Dodgers Foundation · Los Angeles, CA · 2025
Charitable
$25,000
New England Friends of the March of the Living · Sharon, MA · 2025
Charitable
$25,000
North Suburban Jcc · Peabody, MA · 2025
Charitable
$25,000
Riverside Park Conservancy · New York, NY · 2025
Charitable
$25,000
Soul · New Orleans, LA · 2025
Charitable
$25,000
The Jewish Community Center in Manhattan · New York, NY · 2025
Charitable
$25,000
Urban Acheivers Safe Schools · Boston, MA · 2025
Charitable
$25,000
Usc Marshall · Los Angeles, CA · 2025
Charitable
$25,000
Wallis Annenberg Center for the Performing Arts · Beverly Hills, CA · 2025
Charitable
$25,000
Year Up United · Boston, MA · 2025
Charitable
$20,000
Building Relationships Inc Dba Spill the Honey · Southfield, MI · 2025
Charitable
$20,000
Endicott College · Beverly, MA · 2025
Charitable
$20,000
Williams-Mystic · Mystic, CT · 2025
Charitable
$20,000
American Jewish Committee · New York, NY · 2025
Charitable
$15,000
Children'S Museum of Manhattan · New York, NY · 2025
Charitable
$15,000
Hour Children · Long Island City, NY · 2025
Charitable
$15,000
Barrington Stage Company · Pittsfield, MA · 2025
Charitable
$15,000
West Side Campaign Against Hunger · New York City, NY · 2025
Charitable
$15,000
Trustees of Columbia University · New York City, NY · 2025
Charitable
$15,000
Crossroads Rhode Island - 2 · Providence, RI · 2025
Charitable
$10,000
The Jar · Boston, MA · 2025
Charitable
$10,000
Israel On Campus Coalition · Washington, DC · 2025
Charitable
$10,000
Hackley School · Tarrytown, NY · 2025
Charitable
$10,000
Rhode Island Community Foundation · Providence, RI · 2025
Charitable
$10,000
Proeco Azuero · East Hampton, NY · 2025
Charitable
$10,000
Save the Children · Fairfield, CT · 2025
Charitable
$10,000
Irish Repertory Theatre · New York, NY · 2025
Charitable
$10,000
Step Up Tutoring · Santa Monica, CA · 2025
Charitable
$10,000
Amanda James Incorporated · New York, NY · 2025
Charitable
$10,000
The American Exchange Project · Chestnut Hill, MA · 2025
Charitable
$10,000
New York Eye and Ear Infirmary · New York City, NY · 2025
Charitable
$10,000
Vildwerk Foundation · New York, NY · 2025
Charitable
$10,000
Jewish Alliance of Greater Rhode Island · Providence, RI · 2025
Charitable
$10,000
Common Sense Media · San Francisco, CA · 2025
Charitable
$10,000
Public Counsel · Los Angeles, CA · 2025
Charitable
$10,000
A Leadership Journey · Providence, RI · 2025
Charitable
$10,000
Coffee for Good · Greenwich, CT · 2025
Charitable
$10,000
Friends of the High Line · New York, NY · 2025
Charitable
$10,000
Pen America · New York, NY · 2025
Charitable
$10,000
Beverly Hills Police Foundation · Beverly Hills, CA · 2025
Charitable
$10,000
Child Mind Institute · New York, NY · 2025
Charitable
$10,000
The Salem Pantry · Salem, MA · 2025
Charitable
$10,000
Mosaic Interfaith Youth Action · Newton Highlands, MA · 2025
Charitable
$10,000
World Jewish Relief USA · New York, NY · 2025
Charitable
$7,500
Rhode Island Community Food Bank · Providence, RI · 2025
Charitable
$7,500
The Fly Initiative · Cranston, RI · 2025
Charitable
$5,000
Ons Foundation for Clinical Research & Education · Greenwich, CT · 2025
Charitable
$5,000
Israeli-American Council of New England · Newton, MA · 2025
Charitable
$5,000
Squash Haven · New Haven, CT · 2025
Charitable

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Source: 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. Most private foundations do not accept unsolicited applications; the route in is usually a program officer.