Abbott Rubber Co., Inc. American Jetter American Tank Company LLC Davidson Tank Elmira Machine Industries / Wallenstein Vacuum Engine & Accessory, Inc. FlowMark Vacuum Trucks GapVax, Inc. Handle-Tech HotJet USA House of Imports Imperial Industries, Inc. Integrity Tank Sales & Service Inc. ITI Trailers & Truck Bodies, Inc. KeeVac Industries Lane's Vacuum Tank, Inc. Lincoln Center Manufacturing, LLC/Marengo Fabricated Steel Marsh Industrial Milwaukee Rubber Products, Inc. Moro USA, Inc. National Truck Center National Vacuum Equipment, Inc. Pik Rite, Inc. PortaLogix Pressure Lift Corporation Presvac Systems R.A. Ross & Associates NE, Inc. Robinson Vacuum Tanks Inc. Satellite Industries Sonetics Tank World Corp TankTec Transport Truck Sales, Inc. Transway Systems Inc. Truck Country TSI Tank Services, Inc. Vacutrux Limited Vacuum Sales, Inc. VARCo Westmoor Ltd.