| Business | Phone |
| A-Ok Controls Engineering Inc 4375 Giddings Rd, Auburn Hills 48326 | (248) 393-3660 |
| Advanced Vehicle Engineering 1183 Centre Rd, Auburn Hills 48326 | (248) 373-0005 |
| Ami Engineering 1084 Doris Rd, Auburn Hills 48326 | (248) 340-6240 |
| Analytical Process Systems 1771 Harmon Rd, Auburn Hills 48326 | (248) 393-0700 |
| Trikon Design Inc 2295 N Opdyke Rd F, Auburn Hills 48326 | (248) 340-0460 |
| Tesco Engineering 4475 Purks Rd, Auburn Hills 48326 | (248) 276-9700 |
| Tesco Engineering 4567 Glenmeade Ln, Auburn Hills 48326 | (248) 836-5100 |
| Smart Product Design Inc 1074 Centre Rd C, Auburn Hills 48326 | (248) 475-5851 |
| Rite-Way Design Svc Inc 1091 Centre Rd 190, Auburn Hills 48326 | (248) 340-9980 |
| Process Control & Engineering 1091 Centre Rd 160, Auburn Hills 48326 | (248) 340-1888 |
| Qmc Inspection Solutions Inc 1940 Opdyke Ct, Auburn Hills 48326 | (248) 377-6007 |
| Delmia Corp 900 N Squirrel Rd, Auburn Hills 48326 | (248) 267-9696 |
| Engineering Design Svc Inc 2660 Auburn Rd 100, Auburn Hills 48326 | (248) 299-9440 |
| Esys Corporation 3285 Lapeer Rd, Auburn Hills 48326 | (248) 754-1900 |
| Orion Advanced Simulation Inc 3200 Cross Creek Pkwy, Auburn Hills 48326 | (248) 373-9800 |
| Edc 3199 Lapeer Rd, Auburn Hills 48326 | (248) 754-1800 |
| Esys Corporation 1670 N Opdyke Rd, Auburn Hills 48326 | (248) 754-1900 |