- Armstrong Equipment, Inc.
- Davidson Tank
- FMI Truck Sales & Service
- Integrity Tank Sales & Service Inc.
- KeeVac Industries
- Liquid Waste Industries, Inc.
- Milwaukee Rubber Products, Inc.
- National Vacuum Equipment
- Presvac Systems
- R.A. Ross NE
- Robinson Vacuum Tanks Inc.
- Satellite Industries
- TankTec
- Tank World Corp
- Vacuum Sales, Inc.
- VARCo
- Westmoor Ltd.
