| Name | Deductibility Code |
| 105th Floor Heroes Fund Inc. | 4 |
| Arts Booster Club | -- |
| Association of Belltel Retirees Inc. | -- |
| Caumsett Foundation Incorporated | -- |
| Citizen Faculty Association | -- |
| Cold Spring Harbor Area Civic Association Inc. | -- |
| Cold Spring Harbor Fire House Museum | -- |
| Cold Spring Harbor Laboratory | -- |
| Cold Spring Harbor Laboratory Association Inc. | -- |
| Cold Spring Harbor Library | -- |
| Cold Spring Harbor Library Friends Foundation | -- |
| Cold Spring Harbor Nursery School | -- |
| Cold Spring Harbor Rowing Association | -- |
| Cold Spring Harbor-Huntington Soccer Club Inc. | -- |
| Concerned Citizens for 25a Inc. | 4 |
| Dennis J Raia Family Foundation Inc. | 4 |
| Discover & Recover Inc. | -- |
| Dna Stuff Philanthropic Foundation | -- |
| Eagle Dock Foundation Inc. | -- |
| Frassati Fellowship of Catholic Young Adults Inc. | -- |
| Friends of Kevin Sze Foundation | -- |
| Friends of the Cold Spring Harbor Fish Hatchery Inc. | -- |
| Gallagher Family Foundation | 4 |
| Golden Fund for Autism Ltd. | -- |
| Green Long Island Inc. | -- |
| Krusos Foundation | 3 |
| Lessing Family Foundation | 4 |
| Long Island Museum Association Inc. | -- |
| McCurdy Family Foundation | 4 |
| National Institute for World Trade Inc. | 3 |
| Operation Hearts and Homes Inc. | -- |
| Pamela & Richard Rubinstein Foundation Tr | 4 |
| Robertson Research Fund Inc. | -- |
| Sr Marie De Mandat Grancey Foundation | -- |
| Three Harbors Invitational Dancing Class Inc. | -- |
| Turan Family Foundation | 4 |
| Whaling Museum Society Inc. | -- |