| Name | Deductibility Code |
| Alden Kindred of America Inc. | -- |
| Alden Ocean Shell Association | -- |
| Art Complex Inc. | 3 |
| Bay Farm Montessori Academy Inc. | -- |
| Berrybrook School Inc. | -- |
| Boston Records Classical Corporatio | -- |
| Brittany Lambert Foundation Inc. | -- |
| Crossroads for Kids Inc. | -- |
| Declans Foundation Inc. | -- |
| Diakonia Media Group Inc. | -- |
| Doran Agency Charitable Foundation | -- |
| Duxbury Art Association Inc. | -- |
| Duxbury Bay Maritime School Inc. | -- |
| Duxbury Beach Reservation Inc. | -- |
| Duxbury Blue Line Club Inc. | 4 |
| Duxbury Boosters Club Inc. | -- |
| Duxbury Free Library Inc. | -- |
| Duxbury Girls Youth Basketball Inc. | -- |
| Duxbury Hockey Association Inc. | -- |
| Duxbury Playgrounds | -- |
| Duxbury Recreation Foundation Inc. | -- |
| Duxbury Rural and Historical Society Inc. | -- |
| Duxbury Student Union Association | -- |
| Duxbury Thrift & Consignment Shop Inc. | -- |
| Duxbury Town Path Council Inc. | -- |
| Duxbury Youth Baseball | -- |
| Duxbury Youth Cheerleading Association Inc. | -- |
| Duxbury Youth Football Inc. | -- |
| Duxbury Youth Lacrosse Boosters Inc. | -- |
| Duxbury Youth Soccer Inc. | -- |
| E Joseph Evans Charitable Trust | 4 |
| East Coast Breakers Baseball | 4 |
| Friends of Cranberry Hospice Inc. | -- |
| Friends of the Duxbury Council on Aging Inc. | -- |
| Friends of the Duxbury Free Library Inc. | -- |
| Goldenrod Foundation Inc. | 3 |
| Helen Bumpus Gallery Inc. | -- |
| Historic Oneil Farm Inc. | -- |
| International Multisensory Structured Language Education Coun | -- |
| Jacob Bradbury Bean Foundation | -- |
| Jonathan C Taylor Charitable Trust | 4 |
| Kelleher Family Charitable Trust | 4 |
| Kevin & Kathleen Gould Family Foundation Inc. | 4 |
| Living Waters Community of Hope | -- |
| Maarten and Mavis Hemsley Family Foundation Inc. | 4 |
| Massachusetts Association of Science Supervisors | -- |
| Open Minds Inc. | -- |
| Paul S Fortini Foundation Inc. | -- |
| Pookies Pals Incorporated | -- |
| Project Gurnet & Bug Lights Inc. | 4 |
| PTA Massachusetts Parent-Teacher Association Inc. | -- |
| Robert J Flavell and Ronald D Baker Foundation | 4 |
| Snug Harbor Community Chorus Inc. | -- |
| Somerled Charitable Foundation | 4 |
| Sonrisas Inc. | -- |
| Standish Humane Society Inc. | -- |
| The Duxbury Education Foundation Inc. | -- |
| The Sino-American Bridge for Education and Health Inc. | -- |
| The Wildlands Trust of Southeastern Massachusetts | -- |
| Thomas M & Nancy Oneill Foundation | 4 |
| Trustees of Partridge Academy in Duxbury | 4 |
| Under the Tree Foundation Inc. | -- |
| Wingaway Charitable Trust | 4 |