| Name | Deductibility Code |
| Cherry Grove Cemetery Board | 6 |
| Church at Adullams Cave | -- |
| Community Enrichment Through the Arts Inc. | -- |
| Fitness for Life Around Grant County | -- |
| Grant County Fair Inc. | -- |
| Grant County Foundation for Higher Education Inc. | -- |
| Grant County Friends of the Shelter Inc. | -- |
| Grant County Historical Society Inc. | -- |
| Grant County Public Library Foundation Inc. | -- |
| International Creek Conversancy Inc. | -- |
| Labor of Love Ministries Inc. | -- |
| Mason Corinth Parent Teachers Organization | -- |
| Parkview Manor Inc. | -- |
| To the Nations Fellowship USA Inc. | -- |
| Vineyard Church of Grant County | -- |
| Williamstown Band Boosters | -- |
| Williamstown Independent School Educational Trust Fund Inc. | -- |