| Business | Phone |
| B C Builders Japan Lode Rd, Custer 57730 | (605) 673-5940 |
| Blaede Construction 12118 Upper French Creek Rd, Custer 57730 | (605) 673-4094 |
| Borrud Construction & Excavtg Custer Limestone Rd, Custer 57730 | (605) 673-5424 |
| Smith Construction West View Rd, Custer 57730 | (605) 673-3988 |
| Reindl Construction Inc 1029 Mount Rushmore Rd, Custer 57730 | (605) 673-3110 |
| Nielsen Construction 12110 Bendigo Ct, Custer 57730 | (605) 673-5082 |