- A Restroom Trailer Co. (ART Co.)
- AirVote
- AMERI-CAN Engineering
- Armal, Inc.
- Century Chemical Corp.
- Century Paper Products
- Comforts of Home Services, Inc.
- Crapper King
- J&J Portable Sanitation Products
- KeeVac Industries
- Lane's Vacuum Tank, Inc.
- Lang Specialty Trailers
- Matthews Motors
- NRT Sales LLC
- Optimus Industries, LLC - OI Restrooms
- Pik Rite, Inc.
- PolyJohn
- Portable Sanitation Association International
- Ready2Go Trailer Sales LLC
- Satellite Industries
- Surco Portable Sanitation Products
- T.S.F. Company, Inc.
- Voyager Mobile Restrooms
- Walex Products Company, Inc.
