George Koch Sons, LLC (KOCH) is one of seven major subsidiaries of Koch Enterprises, Inc. Our headquarters and primary operation is located in Evansville, Indiana. We also have a major operation in Lichfield, England. KOCH is a leading designer, manufacturer, and installer of complete paint, powder, and flatline finishing systems with over 70 years in the industry and over 1400 complete finishing systems (e-coat, powder, liquid, and wood) installed world-wide. We implement these types of systems to help customers improve their product appearance, functionality, and cost.