Nonprofits in San Marcos, Texas
Nonprofits in San Marcos, Texas. Browse 437 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- San Marcos Gi Forum Edifice Corporation
EIN 746079577 · Headquarters: San Marcos, TX, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Giving Hope
EIN 263297076 · Headquarters: San Marcos, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Greenbelt Alliance
EIN 742896744 · Headquarters: San Marcos, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- San Marcos Hays County Emergency Medical Services Incorporated
EIN 742276859 · Headquarters: San Marcos, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- San Marcos Head to Toe
EIN 873455662 · Headquarters: San Marcos, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Heat Softball
EIN 821436449 · Headquarters: San Marcos, TX, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- San Marcos High School Football Booster Club
EIN 050626921 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- San Marcos High School Orchestra Booster Club
EIN 814631498 · Headquarters: SAN MARCOS, TX, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- San Marcos High School Rattler Band Boosters Inc
EIN 742301877 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- San Marcos High School Swim Boosters Inc
EIN 463002099 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- San Marcos High School Theater Boosters Inc
EIN 844045975 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Industrial Foundation
EIN 900050273 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- San Marcos Inter-agency Planning & Development Council
EIN 742235569 · Headquarters: San Marcos, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- San Marcos Lions Charities Inc
EIN 742880615 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990
- San Marcos Lions International
EIN 746052282 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- San Marcos Performing Arts Assn Inc
EIN 742466389 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- San Marcos Police Officers Association
EIN 742749165 · Headquarters: SAN MARCOS, TX, USA · Crime & Legal Related · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ
- San Marcos Queer Council
EIN 992697032 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- San Marcos Reinvestment Corporation
EIN 742710381 · Headquarters: SAN MARCOS, TX, USA · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990
- San Marcos River Foundation
EIN 742428376 · Headquarters: San Marcos, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- San Marcos River Rollers
EIN 822281416 · Headquarters: San Marcos, TX, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Sights & Sounds of Christmas
EIN 742759206 · Headquarters: SAN MARCOS, TX, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990
- San Marcos Sunrise Club
EIN 742839477 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- San Marcos Telephone Company Incorporated Employee Health Benef
EIN 742281311 · Headquarters: San Marcos, TX, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- San Marcos Texas Community Radio Association
EIN 472962835 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- San Marcos Texas Pride
EIN 842734109 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- San Marcos Voice
EIN 454868459 · Headquarters: San Marcos, TX, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- San Marcos Youth Baseball Softball Association
EIN 204018372 · Headquarters: San Marcos, TX, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- San Marcos Youth Service BureauInc
EIN 742194683 · Headquarters: San Marcos, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Scheib Opportunity Center Inc
EIN 741819945 · Headquarters: SAN MARCOS, TX, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990
- School Fuel Dba School Fuel San Marcos
EIN 464316094 · Headquarters: SAN MARCOS, TX, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- School of the Spring
EIN 393319556 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Seaton Foundation Inc
EIN 742422325 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- SEBD Auxillary Giftshop Inc
EIN 384370767 · Headquarters: San Marcos, TX, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sertoma Inc
EIN 510195359 · Headquarters: San Marcos, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Sertoma International Sponsorship Fund
EIN 742672692 · Headquarters: San Marcos, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Servcollab
EIN 320645475 · Headquarters: San Marcos, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shabach
EIN 611774976 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sigma Alpha Epsilon - Texas Sigma Incorporated
EIN 882755427 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sigma Nu Fraternity
EIN 746077304 · Headquarters: SAN MARCOS, TX, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Skate Park of San Marcos
EIN 203440404 · Headquarters: San Marcos, TX, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Smartaid Inc
EIN 823229884 · Headquarters: SAN MARCOS, TX, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smhs Choir Booster Club
EIN 823576009 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smhs Dazzlers Booster Club
EIN 842809382 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smhs Ffa Booster Club
EIN 844212603 · Headquarters: SAN MARCOS, TX, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Smtx Arsenal Baseball
EIN 881059514 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Smtx Chess Club Inc
EIN 920794639 · Headquarters: San Marcos, TX, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Soar Arena Therapeutic Riding
EIN 352552709 · Headquarters: San Marcos, TX, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990
- Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer
EIN 742726265 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Society of Pi Kappa Lambda
EIN 581757356 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Society of Professional Journalists
EIN 510242622 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sodalis 365
EIN 931456632 · Headquarters: SAN MARCOS, TX, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sonrise India
EIN 825176194 · Headquarters: San Marcos, TX, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- South Hays Fire Department Incorporated
EIN 742903869 · Headquarters: San Marcos, TX, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Southwest Conference
EIN 742977988 · Headquarters: San Marcos, TX, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Southwestern Fertilizer Conference
EIN 742482117 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Sowell Ministries Inc
EIN 934604488 · Headquarters: San Marcos, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Specialty Physicians of Central Texas Inc
EIN 208814408 · Headquarters: SAN MARCOS, TX, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sri Sanatan Dham
EIN 884358417 · Headquarters: San Marcos, TX, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- State Federation of Porcelain Art Clubs of Texas
EIN 742599994 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Steps of Hope Inc
EIN 822296354 · Headquarters: San Marcos, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Student Nutrition Organization of Texas State University
EIN 371706966 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Susan Brown Glenewinkel Educational Foundation
EIN 332085653 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sustainable San Marcos
EIN 320280387 · Headquarters: San Marcos, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- T a D P O L E
EIN 742961631 · Headquarters: San Marcos, TX, US · Animal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Tails Within Texas Rescue
EIN 821852589 · Headquarters: San Marcos, TX, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Teemhaiti Foundation
EIN 461989996 · Headquarters: SAN MARCOS, TX, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas 4-H
EIN 331206435 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas 4-H
EIN 412974951 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas 4-H
EIN 742302829 · Headquarters: san marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Texas 4-H
EIN 800271896 · Headquarters: San Marcos, TX, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Texas Aquatic Conservation Alliance
EIN 392231916 · Headquarters: San Marcos, TX, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas Archeological Society
EIN 741483231 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas Association for Developmental Education
EIN 270697527 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas Buckskin Association
EIN 742483847 · Headquarters: San Marcos, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Texas Council for Music and the Arts Inc
EIN 473761599 · Headquarters: San Marcos, TX, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas Extension Education Association
EIN 742573976 · Headquarters: San Marcos, TX, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Texas Fruit Growers Association
EIN 742683185 · Headquarters: San Marcos, TX, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas Garden Clubs Inc
EIN 742593612 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas High School Coaches Association
EIN 741005842 · Headquarters: SAN MARCOS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas High School Coaches Education Foundation
EIN 262771507 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas High School Coaches Wives Assc
EIN 272882493 · Headquarters: San Marcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas Rivers Protection Association
EIN 742633203 · Headquarters: San Marcos, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas Seed Trade Association
EIN 741895140 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas Senior Master Volleyball Inc
EIN 742718469 · Headquarters: San Marcos, TX, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas State Acda Chapter
EIN 273733021 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Texas State Alumni Association
EIN 742792080 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas State Gymnastics Club
EIN 394280030 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas State Powerlifitng Sports Clu B
EIN 394301262 · Headquarters: san marcos, TX, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas State Sirens
EIN 872497757 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas State Swim Club
EIN 394212460 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas State Triathlon Club Team
EIN 394213686 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Texas State University - San Marcos Research Foundation % Darryl Borgonah
EIN 270523322 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texas State University Chaarg
EIN 873687937 · Headquarters: San Marcos, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Texas State University Development Foundation
EIN 741982979 · Headquarters: SAN MARCOS, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Texasstateshootingalumni
EIN 921057894 · Headquarters: San MArcos, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Thank Your Mom Org Inc
EIN 203997982 · Headquarters: San Marcos, TX, US · Human Services · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- The Dynamite Foundation Inc
EIN 871412915 · Headquarters: San Marcos, TX, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Eyes of the San Marcos River
EIN 831711474 · Headquarters: San Marcos, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Farm
EIN 920291961 · Headquarters: San Marcos, TX, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990