- AirVote
- American Tank Company LLC
- Armal, Inc.
- Crescent Tank Mfg.
- FlowMark Vacuum Trucks
- Imperial Industries, Inc.
- J&J Portable Sanitation Products
- KeeVac Industries
- Lane's Vacuum Tank, Inc.
- Lock America, Inc.
- Milwaukee Rubber Products, Inc.
- National Vacuum Equipment
- PolyJohn
- Portable Sanitation Association International
- PortaLogix
- Ready2Go Trailer Sales LLC
- Robinson Vacuum Tanks Inc.
- ScreencO Systems, LLC
- Surco Portable Sanitation Products
- T.S.F. Company, Inc.
- Tank World Corp
- Vacuum Tank Sales
- VARCo
