| Business | Phone |
| Texas-New Mexico Power 700 Brazos St, Austin 78701 | (512) 457-9109 |
| Texas Wind Power Co 823 Congress Ave # 500, Austin 78701 | (512) 440-0305 |
| Ge Consumer & Industrial 2800 S I H 35, Austin 78704 | (512) 443-0926 |
| El Paso Electric Co 400 W 15th St 806, Austin 78701 | (512) 391-1571 |
| Entergy Corp 919 Congress Ave, Austin 78701 | (512) 487-3900 |
| Pedernales Electric Co-Op Inc 12233 Ranch Road 620 N, Austin 78750 | (512) 331-8883 |
| Center Point Energy 1005 Congress Ave, Austin 78701 | (512) 472-6950 |
| Constellation Newenergy 111 Congress Ave 1400, Austin 78701 | (512) 381-1900 |
| Lower Colorado River Authority 3700 Lake Austin Blvd, Austin 78703 | (512) 473-3200 |
| Roy's Industrial Power Eqpmnt 12707 Nutty Brown Rd, Austin 78737 | (512) 288-7108 |
| Voice Power Technologies Austin 78752 | (512) 419-4800 |
| Pedernales Electric Co-Op Inc 4503 Ranch Road 620 N, Austin 78732 | (512) 331-8883 |
| Pedernales Electric Co-Op Inc 11940 Manchaca Rd, Austin 78748 | (512) 219-2602 |
| Capitol Area Energy Altrntvs 5105 Pryor Ln, Austin 78734 | (512) 266-4085 |
| Fisk Electric Co 9603 Brown Ln, Austin 78754 | (512) 835-8947 |