1. Communications Engineering Co 405 Boyson Rd, Hiawatha, IA 52233 Coordinate: 42.04725,-91.67688 Phone: (319) 294-9000
2. Pratt Audio Visual & VI 820 N 15th Ave, Hiawatha, IA 52233 Coordinate: 42.04556,-91.69388 Phone: (402) 592-6970