| Business | Phone |
| B V Electronics 8100 Charles Page Blvd, Tulsa 74127 | (918) 241-6686 |
| Central Instrument Laboratory 5147 S 94th East Ave, Tulsa 74145 | (918) 622-1140 |
| Hi-Fi Electronic Svc 2124 S Memorial Dr, Tulsa 74129 | (918) 610-5461 |
| Hi-Fi Electronic Svc Inc 7950 E 41st St, Tulsa 74145 | (918) 627-3060 |
| Systems Control Specialist 7003 S 28th West Ave, Tulsa 74132 | (918) 445-4733 |