- AMT Pump Company
- AR North America, Inc.
- Armstrong Equipment, Inc. / Garnet Instruments
- Cat Pumps Corporation
- General Pump
- Milwaukee Rubber Products, Inc.
- Moro USA, Inc.
- MTH Pumps
- R.A. Ross NE INC
- Robinson Vacuum Tanks Inc.
- TankTec
- Tank World Corp
- TSI Tank Services, Inc.
- UDOR U.S.A.
- Vacuum Sales, Inc.
