| Business | Phone |
| Blue Water Marine Engine Ctr 30201 S River Rd, Harrison Townshi 48045 | (586) 563-1125 |
| Michigan Marine Salvage Inc 32475 S River Rd, Harrison Townshi 48045 | (586) 468-2430 |
| Michigan Marine Salvage & Svc 26505 Crocker Blvd, Harrison Townshi 48045 | (586) 783-2073 |