| Business | Phone |
| Computer Data 185 Forty-Fourth, Grandville 49418 | (616) 457-3342 |
| Compuware Corp 2855 44th St Sw 260, Grandville 49418 | (616) 532-0156 |
| Trivalent Group 3145 Prairie St Sw 101, Grandville 49418 | (616) 222-9200 |
| Remex Corp 3145 Prairie St Sw 101, Grandville 49418 | (616) 942-9800 |
| Pc Outlet 3227 28th St Sw, Grandville 49418 | (616) 534-3344 |
| Personal Business Systems 4004 Chicago Dr Sw, Grandville 49418 | (616) 261-0508 |
| Optimal Solutions Inc 3101 Prairie St Sw, Grandville 49418 | (616) 281-6040 |