| Business | Phone |
| Veterans Land Board 1700 Congress Ave, Austin 78701 | (512) 463-5060 |
| Texas Natural Resources Info 1700 Congress Ave # B40, Austin 78701 | (512) 463-8337 |
| Surface Mining & Reclamation 1701 Congress Ave 150, Austin 78701 | (512) 463-6901 |
| Tceq 1921 Cedar Bend Dr 150, Austin 78758 | (512) 339-2929 |
| General Land Office 1700 Congress Ave, Austin 78701 | (512) 463-5001 |
| General Land Office 201 W 14th St, Austin 78701 | (512) 305-9629 |
| General Land Office Info Systs 1700 Congress Ave 970, Austin 78701 | (512) 463-5141 |
| General Land Office Legal Svc 1700 Congress Ave, Austin 78701 | (512) 463-5235 |
| Economic Geology Bureau 10100 Burnet Rd 130, Austin 78758 | (512) 471-1534 |
| Natural Resource Conservation 12100 Park 35 Cir, Austin 78753 | (512) 239-1000 |
| Land Surveying Board 12100 Park 35 Cir 156, Austin 78753 | (512) 452-9427 |
| Real Estate Commission 1101 Camino La Costa, Austin 78752 | (512) 459-6544 |
| Texas Real Estate Commission 1101 Camino La Costa, Austin 78752 | (512) 465-3900 |