| Business | Phone |
| Timberland Design-Build 930 Kehrs Mill Rd # 325-6, Ballwin 63011 | (636) 391-8833 |
| R Hp Construction Inc 819 Posthorn Dr, Ballwin 63021 | (636) 391-1027 |
| Prime Building 13610 Barrett Office Dr, Ballwin 63021 | (314) 779-1001 |
| J W Grey Builders 1315 Ridgetree Trails Ct, Ballwin 63021 | (636) 386-8112 |
| Enigma Building Solutions Inc 903 Danton Ct, Ballwin 63011 | (636) 527-6111 |
| Eugene Alper Construction Co 10 Meadowbrook Country Clb Est, Ballwin 63011 | (636) 227-7956 |