| Business | Phone |
| Advanced Warnings Inc 1302 W 36th St N, Tulsa 74127 | (918) 425-4550 |
| Beeline Traffic Control Inc 1502 W 37th Pl, Tulsa 74107 | (918) 584-3636 |
| Delta Technologies Inc 2228 E 56th Pl, Tulsa 74105 | (918) 749-7773 |
| Downing Manufacturing 8504 S Regency Dr, Tulsa 74131 | (918) 224-1116 |
| Traffic & Lighting Syst 2810 Southwest Blvd, Tulsa 74107 | (918) 585-1382 |
| Traffic & Lighting Syst 4830 W Skelly Dr, Tulsa 74107 | (918) 447-7740 |