| Business | Phone |
| Gilmore & Assoc Inc 2670 33rd Ave, Columbus 68601 | (402) 564-2807 |
| R J Hajek & Assoc Consulting 1060 E 7th Ave, Columbus 68601 | (402) 564-4379 |
| R W Beck Inc 2456 18th Ave, Columbus 68601 | (402) 564-3251 |
| Rvw Inc 4118 Howard Blvd, Columbus 68601 | (402) 564-2876 |
| Snyder Engineering Co 1361 26th Ave, Columbus 68601 | (402) 563-2236 |