| Name | Deductibility Code |
| A W A R E Inc. Always Wanted A Riding Experience | -- |
| Abundant Life Christian Church | -- |
| Advisory Council | -- |
| Air Force Security Forces Foundation Inc. | -- |
| Alms Inc. | -- |
| American Foundation for the Elderly Deaf Inc. | -- |
| American Widow Project | -- |
| Arboretum Family Council | -- |
| Boys & Girls Clubs of South Central Texas | -- |
| Calaboose African American History Museum | -- |
| Calvary Chapel of the Springs | -- |
| Caseta-Center for the Advancement and Study of Early Texas Art | -- |
| Central Texas Aquatic Club Inc. | -- |
| Central Texas Life Care | -- |
| Central Texas Medical Center Foundation | -- |
| Central Texas Museum of Automotive History | 3 |
| Centro Cultural Hispano De San Marcos | -- |
| Christians in San Marcos | -- |
| Community Action Inc. of Hays,caldwell,& blanco Counties | -- |
| Community Angels for Kids and the Elderly | -- |
| Computer Assisted Language Instruction Consortium | -- |
| El Camino Real De Los Tejas National Historic Trail Association | -- |
| Eleanor Crook Foundation | 4 |
| Emmett & Miriam McCoy College of Bus Admin Development Foundation | -- |
| Endowment for Vocational Training Inc. | -- |
| Ferret Dreamers Rescue Haven | -- |
| First Baptist Church Nbc | -- |
| First Presbyterian Church San Marcos Texas | -- |
| First Step School Parent Teacher Organization | -- |
| Free Them Ministries Inc. | -- |
| Friends of the 636th Military Intelligence Battalion | -- |
| Friends of the Family Justice Center | -- |
| Friends of the San Marcos Cemetery Inc. | -- |
| Friends of the San Marcos Public Library | -- |
| Fritz & Alice Anton Scholarship Fund | 4 |
| Gary Community Relations Council | -- |
| Grace Bible Church | -- |
| Grande Community Chest | -- |
| Greater Austin San Antonio Corridor Council Inc. | -- |
| Greater San Marcos Area Seniors Association Inc. | -- |
| Greater San Marcos Youth Council Inc. Dtd 08-01-89 | -- |
| Harold M Freeman Educational Foundation | -- |
| Harvest Christian Center of San Marcos | -- |
| Hays County Crime Stoppers Inc. | -- |
| Hays County Food Bank | -- |
| Hays County Homespun Eci Inc. | -- |
| Hays County Veterans Memorial | -- |
| Hays-Caldwell Council on Alcohol and Drug Abuse | -- |
| Hays-Caldwell Womens Center | -- |
| Health Air | -- |
| Heritage Association of San Marcos Inc. | -- |
| Highland Horse Rescue | -- |
| Hill Country Faith Ministries Inc. | -- |
| Hispanic Coaches Association | -- |
| Indigenous Cultures Institute | -- |
| International Society of Applied Intelligence | -- |
| International Supreme Master Ching Hai Meditation Assn of Austin Inc. | -- |
| Jesus Christs House of Prayer Evangelical Discipleship Ministry | -- |
| Ladies State Chili Championship of Texas Inc. | -- |
| Leadership San Marcos Alumni Association | -- |
| Lyndon Baines Johnson Museum of San Marcos | -- |
| Mackenzie Foundation | 3 |
| Maria Hernandez Intermediate School Pto | -- |
| Martindale Volunteer Fire Department Company | -- |
| Masters School of San Marcos Inc. | -- |
| McCarty Student Center | -- |
| McCoy Student Managed Investment Fund | -- |
| Metamorphosis House | -- |
| Miller Junior High Parent-Teacher Organization | -- |
| Miriam and Emmett McCoy Foundation | 4 |
| Nosotros La Gente | -- |
| Old Grey Foundation | -- |
| Pacto Con Dios Ministry | -- |
| Patrick Webb Price Foundation | 4 |
| Pet Prevent A Litter Pals of Central Texas | -- |
| Promised Land Foundation Online | -- |
| Promiseland San Marcos | -- |
| Rally Call Ministries Inc. | -- |
| Red River Racing Team | 4 |
| River City Dance Theatre Inc. | -- |
| San Marcos Area Arts Council | -- |
| San Marcos Baptist Academy | -- |
| San Marcos Baptist Academy Foundation | -- |
| San Marcos Cisd Education Foundation | -- |
| San Marcos Citizens Police Academy Alumni Association Inc. | -- |
| San Marcos Consolidated Independent School District Tennis Boosters | -- |
| San Marcos Giving Hope | -- |
| San Marcos Greenbelt Alliance | -- |
| San Marcos Hays County Emergency Medical Services Incorporated | -- |
| San Marcos High School Football Booster Club | -- |
| San Marcos Performing Arts Association Inc. | -- |
| San Marcos Reinvestment Corporation | -- |
| San Marcos River Foundation Inc. | -- |
| San Marcos Scout Association | -- |
| San Marcos Sights & Sounds of Christmas Inc. | -- |
| San Marcos Sunrise Club | -- |
| San Marcos Youth Baseball Softball Association | -- |
| San Marcos Youth Service Bureau Inc. | -- |
| San Marcos Youth Service Bureau Inc. | -- |
| San Marcus Art League | -- |
| Scheib Opportunity Center Inc. | -- |
| Skate Park of San Marcos | -- |
| South Hays Fire Department Incorporated | -- |
| Southwest Conference | -- |
| Strahan Foundation | -- |
| Texas Academic Advising Network | -- |
| Texas Association of Student Special Services Programs | -- |
| Texas Campaign to Prevent Teen and Unplanned Pregnancies | -- |
| Texas Consortium for Physical Therapy Clinical Education Inc. | 4 |
| Texas District Court Alliance | -- |
| Texas Educational Foundation Inc. | -- |
| Texas High School Coaches Education Foundation | -- |
| Texas Pioneer Foundation | 4 |
| Texas Rivers Protection Association | -- |
| Texas State Alumni Association | -- |
| Texas State University - San Marcos Development Foundation | -- |
| Texas State University-San Marcos Support Foundation | -- |
| Thank Your Mom Org Inc. | -- |
| The E Cafe Empowering Children and Families Everywhere | -- |
| The Kids Foundation | -- |
| True Vineyard Ministries Inc. | -- |
| Unidos Para La Gente | -- |
| United Way of Hays County | -- |
| Victory Outreach of San Marcos Inc. | -- |
| Village of San Marcos Inc. | -- |
| World of the Bible Ministries Inc. | -- |
| Yoga and Health | -- |