| Business | Phone |
| Amercool 6312 S 39th West Ave, Tulsa 74132 | (918) 445-5366 |
| Delta T Ltd 1507 E 7th St, Tulsa 74120 | (918) 584-0314 |
| Energy Exchanger Co 1844 N Garnett Rd, Tulsa 74116 | (918) 437-3000 |
| Martin Service Co 3123 N Lewis Ave, Tulsa 74110 | (918) 425-4996 |
| Steeltek Inc 4141 S Jackson Ave, Tulsa 74107 | (918) 446-4001 |
| R W Holland Inc 5004 S 101st East Ave, Tulsa 74146 | (918) 664-7822 |
| Shell & Tube 2705 E Skelly Dr # 312, Tulsa 74105 | (918) 832-0505 |