| Business | Phone |
| Barclay Management Group 279 Richton St, Highland Park 48203 | (313) 868-5135 |
| All Chem Corp 15120 3rd St, Highland Park 48203 | (313) 865-3600 |
| Sjo Properties 730 Whitmore Rd, Highland Park 48203 | (313) 340-1570 |
| Roof Medic Inc 20025 Charleston St, Highland Park 48203 | (313) 891-7663 |
| Regal Building Maintenance 20450 Coventry St, Highland Park 48203 | (313) 893-0208 |