| Name | Deductibility Code |
| Aged Benevolence Corporation of East Central Texas | -- |
| Animal Friends of Washington County | -- |
| Arts Council of Washington County Inc. | -- |
| Beautiful Word of Life Incorporated | -- |
| Betswest Foundation | 4 |
| Bible Doctrine Church | -- |
| Bisd Education Foundation | -- |
| Blinn College Ex-Students Association | -- |
| Blinn College Faculty Association | -- |
| Blinn College Foundation Inc. | -- |
| Bosch Foundation | 4 |
| Boys & Girls Club of Washington County Inc. | -- |
| Bread Partners of Washington County Inc. | -- |
| Brenham Amateur Radio Club Inc. | -- |
| Brenham Art Club Inc. | -- |
| Brenham Cemetery Assoc | 6 |
| Brenham Childrens Chorus Inc. | -- |
| Brenham Christian Academy | -- |
| Brenham Christian Fellowship Inc. | -- |
| Brenham Conference Mission Society Inc. | -- |
| Brenham Cub Booster Club | -- |
| Brenham Exceptional Parents | -- |
| Brenham Fire Department | 6 |
| Brenham Heritage Museum Inc. | -- |
| Brenham High School Project Graduation Inc. | -- |
| Brenham High School Theater Booster Club | -- |
| Brenham Main St. Historical Preservation Inc. | -- |
| Brenham Outreach Advisory Council Inc. | -- |
| Brenham Pilot Club Project Lifesaver | -- |
| Brenham-Washington County Swim Club Inc. | -- |
| Buccaneer Alumni Lettermen Association Inc. | -- |
| Burning Fire Within Ministries Inc. | -- |
| C Bar S Family Foundation | 4 |
| Cancer Answers | 4 |
| Center for Missional Leadership Inc. | -- |
| Christ Lutheran Foundation Inc. | -- |
| County Line Missionary Baptist Church | -- |
| Court Appointed Special Advocates for Kids of Austin Waller and | -- |
| Crime Stoppers of Brenham Washington County Inc. | -- |
| Dr R Lee Clark Foundation Inc. | 4 |
| Faith Mission & Help Center Inc. | -- |
| Foundation for the Enhancement and Study of Texas History | -- |
| Friends of Bluebonnet Opry | -- |
| Friendship Quilt Guild | -- |
| Gay-Mound-Cedar Hill Volunteer Fire Department Inc. | -- |
| Goodfellows of Washington County Inc. | -- |
| Grace Community Fellowship-Brenham | -- |
| Gulf Coast Christian Youth Camp Inc. | -- |
| Hartstack Cemetery Association | 6 |
| Here I Am Orphan Ministries Inc. | -- |
| Heritage Society of Washington County | -- |
| Hope & Relief International Foundation Inc. | -- |
| Independence Historical Society | -- |
| Jobs Partnership of Washington County | -- |
| Joel H Johnson Memorial Scholarship Fund | -- |
| Julie Ann Jones Memorial Theological Scholarship Trust | 4 |
| Julio and Ana Gomez Foundation | 4 |
| Kiel Everafter Inc. | -- |
| Kingdom Trumpet Ministries | -- |
| Krause Elementary School Parent Teacher Organization | -- |
| Macedonia Baptist Church Inc. | -- |
| Main Street 12 Club | -- |
| Mastocytosis Society Inc. | -- |
| Medical Assitance Program of Washington County | -- |
| Mission Brenham | -- |
| Mt. Carmel School of Religion | -- |
| My Discovery Museum | -- |
| Nancy Carol Roberts Memorial Library | -- |
| New Bethel Holiness Church Inc. | -- |
| New Hope Missionary Baptist Church | -- |
| Oak Rest Cemetery Association Inc. Charter Number 01122268-01 | 6 |
| Olsen Dean Inc. | -- |
| Praise Temple Apostolic Church Inc. | -- |
| Reflections Foundation | 4 |
| Sage Womens Ministry Inc. | -- |
| Salem Volunteer Fire Department Inc. | 6 |
| St. Peters Episcopal Church of Texas Endowment Fund | -- |
| Texas Master Naturalist | -- |
| The Mount Rose Missionary Baptist Church | -- |
| Transform Ministries | -- |
| Trinity Care Center | -- |
| Trinity Community Medical Center of Brenham | -- |
| Trinity Health Services Corporation | -- |
| Trinity Health Services Foundation | -- |
| True Blue Animal Rescue | -- |
| United Way of Washington County Inc. | -- |
| Unity Theatre Company | -- |
| Volunteer Services Council for the Brenham State School | -- |
| W F Hasskarl Memorial Fund | -- |
| W W and Regina Odonnell Foundation Inc. | 4 |
| Washington County Advisory Council on Recycling | -- |
| Washington County Fair Association | -- |
| Washington County Foundation | -- |
| Washington County Geneological Society | -- |
| Washington County Healthy Living Association | -- |
| Washington County Housing Corporation | -- |
| Washington County Peace Officers Association | -- |
| Washington County Pregnancy Care Center | -- |
| Washington County Scholarship Association Inc. | -- |
| Washington County Wildlife Society | -- |
| Washington County Youth Camp Inc. | -- |
| Wesley Brethren Church | -- |