| Business | Phone |
| Crossroads Engineering & Mgmt 46593 Larchmont Dr, Canton 48187 | (734) 254-0130 |
| Gem One Inc 42030 Koppernick Rd, Canton 48187 | (734) 455-9771 |
| Northwest Consultants 44978 Ford Rd A, Canton 48187 | (734) 454-7566 |
| Matrix Engineering Inc 44330 Duchess Dr, Canton 48187 | (734) 981-7321 |
| Wtua Operations 40905 Joy Rd, Canton 48187 | (734) 416-1910 |
| Tectonics Engineering Inc 7600 Kingsbridge Rd, Canton 48187 | (734) 455-3766 |
| Vitins Engineering 44275 Brandywyne Rd, Canton 48187 | (734) 453-3460 |
| Advanced Matrix 48790 Greenwich Cir, Canton 48188 | (734) 981-2035 |
| Ibs Engineering Svc Co 1049 Kings Ct, Canton 48188 | (734) 981-7336 |
| Mannik & Smith Group 2365 S Haggerty Rd, Canton 48188 | (313) 271-2223 |
| Promax Engineering 47901 Michigan Ave, Canton 48188 | (734) 484-5701 |