| Name | Deductibility Code |
| Agler-Rice Family Foundation | 4 |
| Alfred R Maler Memorial Fund | -- |
| Brookhaven Ambulance Co Inc. | -- |
| Brookhaven Free Library | -- |
| Carmans River Maritime Center | -- |
| Congregation of the Creator Spirit | -- |
| Friends of Wertheim National Wildlife Refuge Inc. | -- |
| Good Tidings Church of Jesus Christ of the Apostolic Faith Inc. | -- |
| International Council Cultural Excg & Council Travel & Intl Univ Colg | -- |
| Llenroc Foundation | 4 |
| Peaceful Dwelling Project Inc. | -- |
| Post Morrow Foundation Inc. | 3 |
| Real Dog Rsq Inc. | -- |
| S U C C E E D for Youth Inc. | -- |
| Something Old Something New | -- |
| South Country Community Land Trust Inc. | -- |
| Suffolk County Superior Officers Relief Fund Incorporated | -- |
| Thorofare Foundation | 4 |