| Name | Deductibility Code |
| Center for Essential Management Services | -- |
| Elwood Athletic Club | -- |
| Gmgc Booster Club Inc. | -- |
| Harborfield Booster Club Inc. | -- |
| Harborfields Alumni & Community Educational Fundation Inc. | -- |
| Harborfields Public Library | -- |
| Housing Help Inc. | -- |
| Huntington Hospital Dolan Family Health Center Inc. | -- |
| Huntington Youth Football League Inc. | -- |
| International Hydrofoil Society Inc. | -- |
| Lawn Street Evangelistic Association Inc. | -- |
| Learning Connection Educational Resources Inc. | -- |
| Long Island Central Korean Church | -- |
| Matinecock Court Housing Development Fund Corp | -- |
| Montaukett Care Takers Inc. of Long Island New York | -- |
| Neighbor-To-Neighbor Civic Association Inc. | -- |
| New York State Shooting Sports Foundation Inc. | -- |
| North Shore Pops Inc. C/O Robert Kranzler | -- |
| Old Huntington Green Inc. | 4 |