| Business | Phone |
| Advance Automated Systems Inc 3775 14 Mile Rd Nw, Sparta 49345 | (616) 887-0316 |
| Freeman & Assoc 11871 Stauffer Dr, Sparta 49345 | (616) 887-4975 |
| Ted Murdock & Assoc 1009 9 Mile Rd Nw, Sparta 49345 | (616) 784-3338 |
| Murdock & Wheland 13085 Foxwood Dr, Sparta 49345 | (616) 887-2182 |