| Business | Phone |
| Century 21 450 First St S, Harrison 48625 | (989) 539-2116 |
| Condell Wonder Land Realty 3701 N Clare Ave, Harrison 48625 | (989) 539-2771 |
| Four Season Realty 426 N 1st St, Harrison 48625 | (989) 539-8888 |
| Harrison Realty 795 N 1st St, Harrison 48625 | (989) 539-2261 |
| Red Oak Realty 1420 N Clare Ave, Harrison 48625 | (989) 539-2646 |