| Business | Phone |
| Advanced Control Engineering 854 Lakeside Dr, Mobile 36693 | (251) 662-7774 |
| Bei Corp 3100 Cottage Hill Rd, Mobile 36606 | (251) 476-2342 |
| Flagship Marine Design 5 Audubon Pl, Mobile 36606 | (251) 478-4100 |
| Ford Bacon & Davis 2 Office Park, Mobile 36609 | (251) 342-3929 |
| Dorsey & Dorsey Engineering 6051 Airport Blvd # B3, Mobile 36608 | (251) 344-3983 |
| Kellogg Brown & Root 2970 Cottage Hill Rd, Mobile 36606 | (251) 450-7000 |
| Malcolm Pirnie Inc 2970 Cottage Hill Rd # 126, Mobile 36606 | (251) 471-6549 |
| Savage-Olsen Design 260 Tuthill Ln, Mobile 36608 | (251) 344-4001 |