- Advance Pump & Equipment, Inc.
- Engine & Accessory, Inc.
- Imperial Industries, Inc.
- KeeVac Industries
- Marsh Industrial
- Matthews Motors
- Milwaukee Rubber Products, Inc.
- Moro USA, Inc.
- National Vacuum Equipment
- North American Trailer
- Pik Rite, Inc.
- Presvac Systems
- R.A. Ross NE INC
- Rentix Solutions
- Robinson Vacuum Tanks Inc.
- Tank World Corp
- Transway Systems Inc.
- TSI Tank Services, Inc.
- Vacuum Sales, Inc.
- VARCo
- Westmoor Ltd.
