| Name | Deductibility Code |
| Alliance for Transportation Choice | -- |
| Casco Bay Health Center | -- |
| Fifth Maine Regiment Museum | -- |
| Friends of Peaks Island Library | -- |
| Home Start | -- |
| National Death Row Assistance Network of Cure | -- |
| Peaks Island Childrens Workshop | -- |
| Peaks Island Land Preserve | -- |
| Peaks Island School Alumni Association | -- |
| Peaks Island Tax Assistance | -- |