1. Nathem Enterprises 607 Dearborn Ave, Waterloo, IA 50703 Coordinate: 42.49093,-92.30616 Phone: (319) 232-7441
2. Livingston Aviation Inc 2814 Betsworth Dr, Waterloo, IA 50703 Coordinate: 42.5486,-92.3968 Phone: (319) 234-1783