| Business | Phone |
| Habitat For Humanity San Marcos 78666 | (512) 754-8142 |
| Hiv/Aids Education/Risk Rdctn 101 Uhland Rd 107, San Marcos 78666 | (512) 754-6628 |
| Mothers Against Drunk Driving 215 W San Antonio St 2003, San Marcos 78666 | (512) 396-6233 |
| Senior Nutrition Program 1201 Thorpe Ln, San Marcos 78666 | (512) 353-5018 |