| Name | Deductibility Code |
| Art League of Smithville | -- |
| Autumn Springs Corporation | 4 |
| Bastrop County Amateur Radio Club | -- |
| Biomedical Horizons Institute Inc. | -- |
| Brown Booster Club | -- |
| Cottage at the Rock-C Ranch | -- |
| Eagle Pines Academy | -- |
| Faith Baptist Church of Smithville | -- |
| Friends of the Skate Park | -- |
| Lost Pines Artisans Alliance | -- |
| Mt. Pilgrim B C Outreach Ministries | 4 |
| Parents and Teachers for Success | -- |
| Parents Assisting With Schools Paws | -- |
| Ragsdale Foundation | 4 |
| Roving Volunteers in Christs Service Incorporated | -- |
| S L C Learning Center | -- |
| Smithville Athletic Booster Club | -- |
| Smithville Brethren Church | -- |
| Smithville Church of Christ | -- |
| Smithville Community Clinic | -- |
| Smithville Crime Stoppers | -- |
| Smithville Elementary Booster Club | -- |
| Smithville Food Pantry | -- |
| Smithville Heritage Society Inc. | -- |
| Smithville High School Project Graduation | -- |
| Smithville Law Enforcement Explorer Post 200 | -- |
| Smithville Regional Healthcare Foundation | -- |
| Smithville Regional Hospital Auxiliary | -- |
| Smithville Regional Hospital Physician Services | -- |
| Smithville Shooters | -- |
| Smithvilletexasdotnet | -- |
| Spacious Skies Inc. | -- |
| Stephen C Wallace II Memorial Association | -- |
| The Friends of the Library Smithville Texas | -- |
| The Promised Land Country Village | -- |
| Tiger Band Booster Club | -- |
| Tunora Recovery House | -- |
| Woodharrow Institute | -- |
| Woodside Trails Wilderness Experience Inc. | -- |