| Name | Deductibility Code |
| Anglo-Saxon Federation of America | -- |
| Church Street Neighborhood Association Inc. | -- |
| Common Ground Ministries Inc. | -- |
| First Signs Inc. | -- |
| Friends of the Merrimac Council on Aging Inc. | -- |
| Merrimac Police Association | -- |
| Merrimac Pto | -- |
| Merrimac Soccer Club | -- |
| Merrimac Softball League Inc. | -- |
| Merrimac Town Improvement Society | -- |
| Merrimack Valley Concert Band | -- |
| New Sound Concerts Inc. | -- |
| Nivasa Foundation | -- |
| Shared Living Collaborative Incorporated | -- |
| Tangier American Legation Museum Society | -- |