| Name | Deductibility Code |
| Association of State Wetland Managers Inc. | -- |
| Community Youth Project | 4 |
| Copd-Support Inc. | -- |
| Crossroad Youth Outreach | -- |
| Friends of the Windham Public & Library | -- |
| Global Harvest Outreach | -- |
| Highland Lake Association | -- |
| Kratos Wrestling Club | -- |
| Little Meeting House Corporation of Windham Maine | -- |
| New England Christian Arts Council | -- |
| North American Friends of Chawton House Library Inc. | -- |
| Northwest Atlantic Marine Allliance Inc. | -- |
| Presumpscot River Watch | -- |
| Richard E Dyke Foundation | -- |
| Riding to the Top | -- |
| Smart Child and Family Services | -- |
| The Sebago Lake Rotary Club Charitable Fund Inc. | -- |
| Windham Center Stage Theatre | 4 |
| Windham Education Foundation | -- |
| Windham Historical Society Inc. | -- |
| Windham Land Tr | -- |
| Windham School Age Childcare | -- |
| Windham Sport and Activity Development Project | -- |
| Windham Veterans Association Inc. | 6 |
| Windham Youth Soccer Association | -- |
| World War II Families for Return of Missing Inc. | -- |
| Zikomo | -- |