| 1 | Sidney E Frank Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $154.7M | $324.8M |
| 2 | Donald a Pels Charitable Tr 081892 | Unclassified | $78.9M | $258.2M |
| 3 | Alexis Gregory Foundation | Unclassified | $72.1M | $46.1M |
| 4 | Gerard B Lambert Foundation | Philanthropy, Voluntarism & Grantmaking | $37.7M | $95.0M |
| 5 | Waldman Foundation | Philanthropy, Voluntarism & Grantmaking | $24.9M | $44.7M |
| 6 | Lum Foundation | Philanthropy, Voluntarism & Grantmaking | $23.2M | $28.5M |
| 7 | Lanza Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $20.7M | $28.3M |
| 8 | Tippet Rise Foundation | Philanthropy, Voluntarism & Grantmaking | $17.4M | $59.2M |
| 9 | Llewellyn Family Foundation | Philanthropy, Voluntarism & Grantmaking | $15.4M | $53.8M |
| 10 | A L Mailman Family Foundation INC | Unclassified | $12.5M | $19.9M |
| 11 | Brian a McCarthy Foundation INC | Philanthropy, Voluntarism & Grantmaking | $9.7M | $8.5M |
| 12 | American Booksellers Assoc INC | Arts, Culture & Humanities | $9.4M | $39.6M |
| 13 | Elmer & Mamdouha Bobst Foundation INC | Unclassified | $7.8M | $24.3M |
| 14 | Grass Foundation | Unclassified | $6.9M | $25.8M |
| 15 | Stern Family Philanthropic Foundation | Philanthropy, Voluntarism & Grantmaking | $5.1M | $15.1M |
| 16 | Frances Lear Foundation | Philanthropy, Voluntarism & Grantmaking | $3.6M | $8.7M |
| 17 | Harrison Volunteer Ambulance Corps INC | Unclassified | $3.5M | $4.3M |
| 18 | Larsen Fund | Unclassified | $3.2M | $21.2M |
| 19 | Harrison Childrens Center INC | Human Services | $2.9M | $1.3M |
| 20 | Association of International Photography Art Dealers INC | Unclassified | $2.6M | $874K |
| 21 | New York Neuro-intervention and Neuro-imaging Research Foundation | Medical Research | $2.5M | $2.5M |
| 22 | Foundation for the Fight for Human Survival | Philanthropy, Voluntarism & Grantmaking | $2.3M | $4.8M |
| 23 | C Larry and Ingrid Davis Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $2.3M | $2.3M |
| 24 | National Mah Jongg League Foundation INC | Philanthropy, Voluntarism & Grantmaking | $2.1M | $14.2M |
| 25 | The Jack Gantz Charitable Foundation INC | Unclassified | $1.6M | $8.4M |
| 26 | Boisi Family Foundation | Unclassified | $1.6M | $525K |
| 27 | Section One INC | Recreation & Sports | $1.6M | $1.2M |
| 28 | Life Extension Foundation INC | Unclassified | $1.6M | $2.5M |
| 29 | Robinson Family Foundation | Philanthropy, Voluntarism & Grantmaking | $1.5M | $3.4M |
| 30 | Molly Lou Foundation | Philanthropy, Voluntarism & Grantmaking | $1.4M | $6.2M |
| 31 | McCaddin-mcquirk Foundation INC | Unclassified | $1.4M | $4.5M |
| 32 | The All in Together Campaign INC | Civil Rights, Social Action & Advocacy | $1.3M | $139K |
| 33 | Mack Goldner Memorial Foundation | Unclassified | $988K | $1.5M |
| 34 | Harrison Teachers Benefits | Health Care | $929K | $1.1M |
| 35 | Adrian Brinkerhoff Poetry Foundation | Arts, Culture & Humanities | $750K | $271K |
| 36 | Pet Rescue Incorporated | Unclassified | $725K | $1.4M |
| 37 | Harrison Youth Soccer Club INC | Recreation & Sports | $677K | $182K |
| 38 | Ralph and Fanny Ellison Charitable Tr | Philanthropy, Voluntarism & Grantmaking | $611K | $3.6M |
| 39 | Rutkowski Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $540K | $700K |
| 40 | Equity Advocates INC | Food, Agriculture & Nutrition | $528K | $525K |
| 41 | One Good Hand Foundation | Philanthropy, Voluntarism & Grantmaking | $512K | $961K |
| 42 | Organize Action Network | Health Care | $500K | $678K |
| 43 | The Paul Beirne Foundation INC | Unclassified | $480K | $1.1M |
| 44 | Atlantic Legal Foundation | Unclassified | $469K | $222K |
| 45 | Cruz-diez Foundation | Philanthropy, Voluntarism & Grantmaking | $446K | $23.3M |
| 46 | Signal Foundation | Philanthropy, Voluntarism & Grantmaking | $415K | $28.7M |
| 47 | Pediatric Keratoplasty Foundation INC | Medical Research | $413K | $400K |
| 48 | Police Association of the Town of Harrison N Y INC | Unclassified | $367K | $1.3M |
| 49 | American Friends of the Donmar Theatre INC | Philanthropy, Voluntarism & Grantmaking | $300K | $1.2M |
| 50 | Harrison Youth Council INC | Human Services | $279K | $253K |
| 51 | Westchester-putnam School Boards Association | Unclassified | $273K | $148K |
| 52 | Harrison Public Library Foundation INC | Human Services | $241K | $501K |
| 53 | American Friends of the Almeida Theatre INC | Arts, Culture & Humanities | $231K | $44K |
| 54 | Ministerio Catedral de Adoracao INC | Religion-Related | $229K | $23K |
| 55 | McCooey Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $228K | $800K |
| 56 | Harrison Pba Foundation INC | Public & Societal Benefit | $219K | $68K |
| 57 | Rusi US Foundation | Philanthropy, Voluntarism & Grantmaking | $193K | $462K |
| 58 | Harrison School Unit Benefit Fund Csea Ny Local 860 Unit 9180 | Unclassified | $190K | $486K |
| 59 | Gabe Wiener Foundation INC | Philanthropy, Voluntarism & Grantmaking | $176K | $93K |
| 60 | Alfred a & Hanina Z Shasha Foundation INC | Unclassified | $144K | $3.8M |
| 61 | Alan and Giselle Weissman Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $138K | $913 |
| 62 | McInerney Foundation Ltd | Unclassified | $134K | $897K |
| 63 | PTA New York Congress | Education | $129K | $60K |
| 64 | Friends of Harrison Football INC | Education | $122K | $13K |
| 65 | Temper of the Times Foundation INC | Philanthropy, Voluntarism & Grantmaking | $113K | $686K |
| 66 | Heller Fam Foundation Tr | Philanthropy, Voluntarism & Grantmaking | $109K | $257K |
| 67 | PTA New York Congress | Unclassified | $104K | $17K |
| 68 | Peter M Looser Scholarship Foundation | Philanthropy, Voluntarism & Grantmaking | $99K | $169K |
| 69 | Harrison Educational Foundation Incorporated | Philanthropy, Voluntarism & Grantmaking | $88K | $53K |
| 70 | Sharrock Family Charitable Tr | Philanthropy, Voluntarism & Grantmaking | $83K | $363K |
| 71 | Lower Hudson Education Coalition | Unclassified | $82K | $77K |
| 72 | Boucher Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $78K | $2.9M |
| 73 | Herring-finn Foundation INC | Unclassified | $78K | $1.6M |
| 74 | Harrison Volunteer Fire Department | Philanthropy, Voluntarism & Grantmaking | $77K | $173K |
| 75 | Dennis & Brooks Holt Foundation | Philanthropy, Voluntarism & Grantmaking | $75K | $607K |
| 76 | Earth Sciences Foundation | Philanthropy, Voluntarism & Grantmaking | $75K | $3.8M |
| 77 | Mitchell and Karen Kuflik Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $64K | $5.4M |
| 78 | Rye Garnets Ice Hockey INC | Recreation & Sports | $51K | $50K |
| 79 | Kayden Foundation | Unclassified | $50K | $59K |
| 80 | Friends of Harrison Varsity Cheerleaders INC | Recreation & Sports | $49K | $16K |
| 81 | Jack & Deborah Becker Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $47K | $386K |
| 82 | Youth Power Coalition INC | Youth Development | $45K | $101K |
| 83 | Woolrich Outdoor Foundation | Environment | $44K | $16K |
| 84 | Kasamahan Ng Mga Pilipino Sa Westchester Atbp INC | Human Services | $41K | $45K |
| 85 | Friends of Harrison Youth Game Day Cheer INC | Recreation & Sports | $34K | $18K |
| 86 | Perrott Family Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $26K | $689K |
| 87 | The Society of Industrial and Office Realtors | Unclassified | $25K | $34K |
| 88 | Muller Foundation | Unclassified | $23K | $123K |
| 89 | Victor R Wright Foundation | Unclassified | $21K | $977K |
| 90 | Amies Place Foundation | Human Services | $21K | $29K |
| 91 | The Wiener Family Foundation | Philanthropy, Voluntarism & Grantmaking | $20K | $1.1M |
| 92 | Gladys and Murray Goldstein Foundation INC | Unclassified | $17K | $25K |
| 93 | Yale Westchester Alumni Association | Unclassified | $14K | $97K |
| 94 | Gp in the Midst INC | Youth Development | $13K | $19K |
| 95 | Androscoggin Alumni Association INC | Education | $9K | $76K |
| 96 | Andrew Rinaldi Memorial Fund | Philanthropy, Voluntarism & Grantmaking | $8K | $38K |
| 97 | Organ Alliance INC | Health Care | $5K | $168K |
| 98 | Edward Mensch Foundation | Philanthropy, Voluntarism & Grantmaking | $4K | $48K |
| 99 | Obernier Fam Foundation | Philanthropy, Voluntarism & Grantmaking | $2K | $26K |
| 100 | Alfred and Constance Weissman Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $1 | $24K |