| Name | Deductibility Code |
| Coginchaug Soccer Club | -- |
| Connecticut Chapter of the American College of Physicans-American | -- |
| Durham Middlefield Youth Football and Cheerleading | -- |
| Durham-Middlefield Youth & Family Services Inc. | -- |
| Independent Day School Incorporated | -- |
| Levi E Coe Library Association | -- |
| Middlefield Childrens Center Inc. Main St. | -- |