| Business | Phone |
| Baudhuin Inc 55 S 3rd Ave, Sturgeon Bay 54235 | (920) 743-8211 |
| Bay Engineering Inc 253 N 1st Ave, Sturgeon Bay 54235 | (920) 743-8282 |
| Michael J Till Assoc 607 Louisiana St, Sturgeon Bay 54235 | (920) 743-3545 |
| Midwest Contract Operations 670 Shorecrest Dr, Sturgeon Bay 54235 | (920) 746-4559 |
| R A Nebel Ii Engineering 3632 N Duluth Ave, Sturgeon Bay 54235 | (920) 743-7856 |