| Business | Phone |
| Bennett Engineering 1939 W Concord Cir, Broken Arrow 74012 | (918) 258-2195 |
| C S P Engineering 1700 E College, Broken Arrow 74012 | (918) 251-2502 |
| Cook Flatt & Strobel Engineers 1514 W Plymouth Cir, Broken Arrow 74012 | (918) 355-9201 |
| Impex Inc 401 N Redbud Ave, Broken Arrow 74012 | (918) 258-8179 |