| Name | Deductibility Code |
| Calvary Presbyterian Korean Church in New York | -- |
| Heavenly Vision Ministry | -- |
| Kb Racing Ltd. | -- |
| Long Island Native American Task Force Inc. | -- |
| Lynettes Dream Inc. | -- |
| Mastic Ambulance Benevolent Association Inc. | -- |
| Mastic Congregation of Jehovahs Witnesses | -- |
| Mastic Fire Department | -- |
| Mastic Sports Club | -- |
| Mastic Volunteer Ambulance Company Inc. | -- |
| Nanas House Inc. | -- |
| Never Alone Never Afraid Inc. | -- |
| Paumanok Adgonquain Foundation Inc. Poosepatuck Indian Reservation | -- |
| Save the Forge River Inc. | -- |
| Sree Bharata Kamalalaya Inc. | 4 |
| William Floyd Aau-Yboa Basketball | -- |
| William Floyd Community Summit | -- |