| Business | Phone |
| Andersen & Crain Inc 2636 Garfield Rd N 30, Traverse City 49686 | (231) 947-7255 |
| E C & S 2748 Garfield Rd N 9, Traverse City 49686 | (231) 941-2366 |
| F & V Construction Mgmt 3491 Hartman Rd, Traverse City 49684 | (231) 932-8600 |
| Gosling Czubak Engineering 1280 Business Park Dr, Traverse City 49686 | (231) 946-9191 |
| Peckham Engineering 1220 Airport Access Rd 2, Traverse City 49686 | (231) 946-2394 |