| Name | Deductibility Code |
| A Tail to Tell Inc. | -- |
| Accessible Knowledge Inc. | -- |
| Mount Gretna Area Historical Society Inc. | -- |
| Mount Gretna United Methodist Church | -- |
| Mt. Gretna Community Trust to Preserve the Arts | 4 |
| Pennsylvania Chautauqua Foundation | -- |
| Philhaven | -- |
| The Mount Gretna Arts Council Inc. | -- |
| The Mt. Gretna Community Volunteer Fire Co | 6 |