| Business | Phone |
| Contech-Control Technologies 5710 40th St, Lubbock 79407 | (806) 797-0900 |
| Digital Air Control Inc 4026 Englewood Ave, Lubbock 79407 | (806) 791-5111 |
| Instrument Maintenance Co 802 40th St, Lubbock 79404 | (806) 747-8181 |
| Johnson Controls Inc 1603 W Loop 289, Lubbock 79416 | (806) 795-8800 |
| Softwire 2405 20th St, Lubbock 79411 | (806) 762-6083 |