- AR North America, Inc.
- Armstrong Equipment, Inc.
- Ashland Pump
- Cat Pumps Corporation
- Davidson Tank
- Fruitland Manufacturing
- General Pump
- GIANT INDUSTRIES INC
- Gorman-Rupp Pumps
- Imperial Industries, Inc.
- ITI Trailers & Truck Bodies, Inc.
- Liberty Pumps
- Milwaukee Rubber Products, Inc.
- Moro USA, Inc.
- National Vacuum Equipment
- Pik Rite, Inc.
- Pressure Lift Corporation
- SJE Rhombus®
- Slide In Queen
- Transway Systems Inc.
- TSI Tank Services, Inc.
- UDOR U.S.A.
- VARCo
