?- Aerofoam Industries LLC
- Armacell
- BASF SE
- Boyd Corporation
- Diab Group
- DuPont
- ERG Aerospace Corporation
- Evonik Industries
- General Plastics Manufacturing Company
- Grand Rapids Foam Technologies
- Greiner AG
- Rogers Corporation
- Solvay
- Technifab Inc.
- UFP Technologies
- Zotefoams PLC
- Recticel NV/SA