| Business | Phone |
| Michiana Contracting Inc 24255 State Road 23, South Bend 46614 | (574) 234-5261 |
| Shambaugh & Son 100 W Navarre St, South Bend 46601 | (574) 257-4190 |
| Williams Contracting Co South Bend 46601 | (574) 232-0968 |
| Wilson Scott A Htg Ac Contr 817 Leet, South Bend 46616 | (574) 256-9277 |