| Name | Deductibility Code |
| Algonquin Athletic Boosters Club Inc. | -- |
| Arthur R Lambert Memorial Foundation | 4 |
| Association of Massachusetts Wetlands Scientists | -- |
| Boston Piano Amateurs Association Inc. | -- |
| Cornerstone Academy Parents and Teachers Group Inc. | -- |
| Drive for Dreams | -- |
| Friends of Fire District Fourteen Inc. | 4 |
| Friends of Northborough Senior Center Inc. | -- |
| Friends of the Northborough Library Inc. | -- |
| Friendship Network for Children Inc. | -- |
| Futbol Club Puma Inc. | -- |
| Kendal C and Anna Ham Charitable Foundation | 4 |
| Nordic Calendar Inc. | -- |
| Northboro Youth Basketball Association | -- |
| Northboro Youth Hockey Program Inc. | -- |
| Northboro Youth Soccer Association Inc. | -- |
| Northborough Affordable Housing Corporation | -- |
| Northborough Art Guild Inc. | -- |
| Northborough District Nurse Association Inc. | -- |
| Northborough Education Foundation Inc. | -- |
| Northborough Extended Day Programs Inc. | -- |
| Northborough Food Pantry | -- |
| Northborough Historical Society Inc. | -- |
| Northborough Southborough Music Association Inc. | -- |
| Northborough-Southborough Girls Lacrosse Inc. | -- |
| Rice Korean Baptist Church | -- |
| Rsd Help Inc. | -- |
| The Greater Boston Mass Spectrometry Discussion Group Corp | -- |
| Unitarian Universalist Psi Symposium | 1 |
| Viner Foundation | 4 |
| William H Leland III Charitable Foundation Inc. | 4 |