| Name | Deductibility Code |
| Big Brothers Big Sisters of Long Island Donation Center Inc. | -- |
| Big Brothers-Big Sisters of Long Island Inc. | -- |
| Contractors for Kids Inc. | -- |
| Long Island Allergy and Asthma Society | -- |
| Long Island Home Builders Care Inc. | -- |
| Marvin Jones Charitable Foundation Inc. | -- |
| Nec Foundation of America | 4 |
| Neisloss Family Foundation Inc. | 4 |
| Pal-O-Mine Equestrian Inc. | -- |
| Palpala Inc. | -- |
| Parrot Rescue Inc. | -- |
| Rose Brucia Educational Foundation | -- |
| Senior Umbrella Network Inc. | -- |
| Stanley and Iris Rabinowitz Foundation | 4 |
| Suffolk Academy of Medicine | -- |
| Suffolk Pediatric Society Inc. | -- |
| The Care Center Inc. | -- |
| Tsunis Family Foundation Inc. | 4 |