| Name | Deductibility Code |
| Battle Creek Nature Education Society Inc. | -- |
| Broometime Foundation | 4 |
| Calvert Brass Consortium Inc. | -- |
| Coastal and Estuarine Research Federation | -- |
| Coastal and Estuarine Research Federation | -- |
| Friends of Felines Inc. | -- |
| Friends of the One Room Schoolhouse Inc. | -- |
| Light Opera Company of Southern Maryland Inc. | -- |
| Southern Maryland Spay and Neuter Inc. | -- |
| Yvorra Leadership Development Inc. | 4 |