| Business | Phone |
| Circle R Mechanical Contrs 4011 N 150 W, Columbus 47201 | (812) 375-1543 |
| Claimlink Resource Grp 4020 W Goeller Blvd # D, Columbus 47201 | (812) 342-2902 |
| D L Ind Inc 10004 E 550 N, Columbus 47203 | (812) 546-0551 |
| Short's Mechanical Columbus 47201 | (812) 372-3367 |
| Simco/Southern Indiana Mech Co 4056 N Long Rd, Columbus 47203 | (812) 372-2400 |
| Starks Mechanical 965 Repp Dr, Columbus 47201 | (812) 376-6030 |