| Name | Deductibility Code |
| Crowley Family Foundation | 4 |
| Friends of the Princeton Public Library Inc. | -- |
| Friends of Wachusett Mountain Inc. | -- |
| Heritage Bible Church | -- |
| Neady Cats Corp | -- |
| Patrick Comer Courage Foundation | -- |
| Princeton Arts Society Inc. | -- |
| Princeton Historical Society Inc. | -- |
| Princeton Land Tr | -- |
| Stageworks of Leominster Inc. | 4 |
| The Masters Christian Academy Inc. | -- |
| Theodore B and Kim M Goodnow Family Charitable Foundation | 4 |
| Trustees of the Goodnow Memorial Building | -- |
| Wachusetts House Corp | -- |