- Advance Pump & Equipment, Inc.
- American Tank Company LLC
- Armstrong Equipment, Inc. / Garnet Instruments
- Bruder Tank
- Crescent Tank Mfg.
- Imperial Industries, Inc.
- KeeVac Industries
- Marsh Industrial
- Matthews Motors
- PolyJohn
- Robinson Vacuum Tanks Inc.
- Satellite Industries
- Slide-In Queen
- TankTec
- Tank World Corp
- TSI Tank Services, Inc.
- Vacuum Sales, Inc.
- Vacuum Tank Sales
