| Business | Phone |
| United Way-Greater Williamson 101 E Old Settlers Blvd 160, Round Rock 78664 | (512) 255-6799 |
| Volunteer Center 1701 S Mays St H, Round Rock 78664 | (512) 388-4575 |
| Ymca 1812 N Mays St, Round Rock 78664 | (512) 244-0288 |
| A World For Children 1516 E Palm Valley Blvd C3, Round Rock 78664 | (512) 218-8167 |
| American Red Cross Williamson 101 E Old Settlers Blvd, Round Rock 78664 | (512) 255-9899 |
| Arrow Project 231 E Main Ave 100, Round Rock 78664 | (512) 388-2400 |
| Caregivers 2498 E Palm Valley Blvd, Round Rock 78664 | (512) 310-1060 |
| Homes 4 Good 301 Hesters Crossing Rd, Round Rock 78681 | (512) 716-3002 |