| Name | Deductibility Code |
| Community Centers of Westport Inc. | -- |
| Devin Laubi Foundation | -- |
| Fairloom Incorporated | -- |
| Friends of the Westport Council on Aging Inc. | -- |
| Gardening for Good Inc. | -- |
| Hosea 4-6 Ministry Inc. | -- |
| Israel Institute of Management Inc. | -- |
| Jacques Foundation Inc. | 4 |
| John Krupa Jr Memorial Foundation Inc. | -- |
| Karpa Corp | -- |
| Last Chance Cat Sanctuary Inc. | -- |
| Mass Coalition for Juvenile Firesetter Program Inc. | -- |
| Massachusetts Waterfowlers Inc. | -- |
| Messier Family Foundation at Cory Island Inc. | -- |
| Robert T and Judith B Hale Foundation | 4 |
| Roland Aime & Rita P Lafrance Family Charity Foundation | 4 |
| Smith College Club of Southeastern Massachusetts | -- |
| Southeastern Shellfish Association Inc. | -- |
| The Matt Benoit Memorial Scholarship Fund | -- |
| The Samaritans of Fall River New Bedford Incorporated | -- |
| Wes-Mac Parent Teachers Organization | -- |
| Westport Associates | -- |
| Westport Babe Ruth Baseball Inc. | -- |
| Westport Boys Basketball League | -- |
| Westport Fair | -- |
| Westport Fishermens Association Inc. | -- |
| Westport Historical Society Inc. | -- |
| Westport Land Conservation Trust Inc. | -- |
| Westport Middle School Association Inc. | -- |
| Westport Music Boosters Association C/O Elaine L Margarida | -- |
| Westport River Watershed Alliance Inc. | -- |
| Westport Youth Athletic Association Incorporated | -- |