| Business | Phone |
| D & D Communications 13444 L St, Omaha 68137 | (402) 895-6100 |
| Electronic Engineering 13704 P St, Omaha 68137 | (402) 346-5123 |
| Racom 5350 F St, Omaha 68117 | (402) 734-7400 |
| Motorola Po Box 12274, Omaha 68112 | (402) 451-3335 |
| Goodrich Enterprises Inc 11435 Manderson St, Omaha 68164 | (402) 493-1886 |
| Ladd Electronics Co 111 N 41st St, Omaha 68131 | (402) 556-3023 |