27th Trucks, Inc. A.R. North America, Inc. Advance Pump & Equipment, Inc. AMT Pump Company Andert, Inc. Best Enterprises, Inc. Davidson Tank Easy Kleen Pressure Systems Ltd. Elmira Machine Industries / Wallenstein Vacuum Engine & Accessory, Inc. FMI Truck Sales & Service Fruitland Manufacturing GapVax, Inc. HotJet USA House of Imports Imperial Industries, Inc. KeeVac Industries, Inc. Keith Huber Corporation Liberty Pumps LMT Inc. Marengo Fabricated Steel, Ltd. Marsh Industrial Masport, Inc. Milwaukee Rubber Products, Inc. Moro USA, Inc. MTH Pumps National Vacuum Equipment, Inc. Pik Rite, Inc. Pressure Lift Corporation Presvac Systems R.A. Ross & Associates NE, Inc. Rider Agri Sales & Service, Inc. Robinson Vacuum Tanks Satellite | PolyPortables ScreencO Systems LLC Specialty B Sales Tank World Corp TankTec Transport Truck Sales, Inc. Transway Systems Inc. TSI Tank Services, Inc. Vacutrux Limited Vacuum Sales, Inc. VARCo Wee Engineer, Inc. Westmoor Ltd.