| Name | Deductibility Code |
| Adnim Foundation | 4 |
| Androscoggin Alumni Association Inc. | -- |
| Boucher Charitable Foundation | 4 |
| Bronxville Youth Lacrosse Association Inc. | -- |
| Cedars Foundation | 4 |
| Charles and Richard Oestreich Fdn Inc. | 4 |
| David Goldstein Foundation Inc. | 4 |
| Elizabeth & Richard S Fuld Foundation | 4 |
| Estelle & Sidney M Silverstone Foundation Inc. | 4 |
| Family Institute of Westchester | -- |
| Fred C Gloeckner Foundation Inc. | 4 |
| Friends of Harrison Pond | -- |
| Friends of the Harrison Public Library Inc. | -- |
| Gladys and Murray Goldstein Foundation Inc. | 4 |
| Grace and Love Church | -- |
| Harrison Athletic Facilities Citizens Organization Inc. | -- |
| Harrison Band Parents Association Inc. | -- |
| Harrison Council for the Arts Inc. | 4 |
| Harrison Educational Foundation Incorporated | -- |
| Harrison Fire Department | -- |
| Harrison Girls Softball Booster Club Ltd. | -- |
| Harrison Players Inc. | -- |
| Harrison Volunteer Ambulance Corps Inc. | -- |
| Harrison Youth Council Inc. | -- |
| Hccf Foundation Inc. | 4 |
| Herbert & Hilda Diatch Foundation Inc. | 4 |
| Hidden Lake Conservation & Gun Club Inc. | -- |
| Hoffman Foundation Inc. | 4 |
| Irish Educational Development Foundation Inc. | -- |
| James P & Ruth C Gillroy Foundation Inc. | 4 |
| Jandon Foundation | 4 |
| Jarx Foundation Inc. | 4 |
| Jewish Community Center of Harrison Inc. | -- |
| Karp Foundation Inc. | 4 |
| Kayden Foundation | 4 |
| Kenneth A Forde and Kareitha O Forde Private Family Foundation | 4 |
| Lanza Family Foundation Inc. | 4 |
| Meals on Wheels of Harrison Inc. | -- |
| Megley Family Charitiable Trust | 4 |
| Mend A Broken Heart Foundation Inc. | -- |
| Mimi Abrons Foundation Inc. | 4 |
| Muller Foundation | 4 |
| Northeast Potters House Church Inc. | -- |
| Northeast Potters House Inc. | -- |
| Pamela Posen Memorial Fund | -- |
| Peter & Laura Giaimo Foundation | 4 |
| Peter R Schneider Private Family Foundation | 4 |
| Rohauer Collection Foundation Inc. | 4 |
| Rutkowski Family Foundation Inc. | 4 |
| Rye Youth Lacrosse Inc. | -- |
| S C Benjamin Foundation | 4 |
| Serenbetz Family Foundation Inc. | 4 |
| The Castle Foundation | 4 |
| The Foundation of the Rotary Club of White Plains New York | -- |
| The Lucille and Paul Maslin Foundation Inc. | 4 |
| The Nancy and Kevin Rodman Foundation | 4 |
| The Richard E Halperin Memorial Fund | 4 |
| Urban Cyberhomes Inc. | -- |
| Westchester Group Theatre | -- |
| Westchester Shore Humane Society Inc. | -- |
| Yale Westchester Alumni Association | -- |