| Name | Deductibility Code |
| Big Brothers-Big Sisters of Southeastern Connecticut Inc. | -- |
| Camp Rising Sun Charitable Foundation Inc. | -- |
| Comstock Cemetery Assoc | 6 |
| Dr Charles E Murphy Memorial Fund | -- |
| Lifefaqs Org | -- |
| Montville American Legion Baseball Inc. | -- |
| Montville Center Congregational Church | -- |
| Montville Education Foundation Inc. | -- |
| Montville Youth Football League Incorporated | -- |
| Montville Youth Soccer Club Inc. | -- |
| Oakdale Volunteer Fire Company Inc. | -- |
| Raymond Library Co | -- |
| Saint Thomas More Endowment and Development Fund Inc. | -- |
| Southeastern Connecticut Youth Hockey Inc. | -- |
| St. Thomas More School Inc. | -- |