| Business | Phone |
| Manufacturing Technology Inc 11426 Dorsett Rd, Maryland Heights 63043 | (314) 298-0004 |
| E Congruent Systems Inc 11425 Dorsett Rd # 200, Maryland Heights 63043 | (314) 770-1110 |
| Daimler Chrysler Corp 3187 Riverport Tech Center Dr, Maryland Heights 63043 | (314) 738-0682 |