| Business | Phone |
| Amtech Elevator Co 99 W Willis St, Detroit 48201 | (313) 831-0900 |
| Nsc Auto Svc 10201 Woodward Ave, Detroit 48202 | (313) 883-0463 |
| Thyssenkrupp Elevator 3011 W Grand Blvd, Detroit 48202 | (313) 871-0801 |
| Reality Inc 20011 Barlow St, Detroit 48205 | (313) 839-6120 |
| American Elevator Co 729 Meldrum St, Detroit 48207 | (313) 568-1603 |
| Data Center Technologies Corp 3430 E Jefferson Ave 546, Detroit 48207 | (313) 371-0020 |
| Elevator Technology Inc 4628 Saint Aubin St, Detroit 48207 | (313) 832-2440 |
| Gratiot Petro Mart 3652 Gratiot Ave, Detroit 48207 | (313) 579-0445 |
| City Elevator Inc 5935 Grand River Ave, Detroit 48208 | (313) 896-2000 |
| Javion & Sams Towing 2416 Hubbard St, Detroit 48209 | (313) 842-7600 |
| Calek Software Po Box 231243, Detroit 48223 | (313) 537-5125 |
| 333 Elevators Llc Lt 333 W Fort St, Detroit 48226 | (313) 963-0341 |
| Charter Technologies Detroit 48226 | (313) 887-0818 |
| Gas Tank Renu-Usa 12727 Greenfield Rd, Detroit 48227 | (313) 837-6122 |
| Otis Elevator Co 2290 Midfield Dr, Detroit 48242 | (248) 473-7365 |
| Otis Elevator Co 1 Detroit Metro Airport, Detroit 48242 | (734) 942-3983 |
| Otis Elevator Company 100 Renaissance Ctr, Detroit 48243 | (313) 259-0640 |