| Business | Phone |
| Piping Resources Inc 4502 F St, Omaha 68117 | (402) 738-8100 |
| Newton Valve Svc 10420 J St, Omaha 68127 | (402) 339-2443 |
| Gpi Inc 7501 Crown Point Ave, Omaha 68134 | (402) 331-3315 |
| Central States Group 8720 S 137th Cir, Omaha 68138 | (402) 894-1003 |