Industry Groups
- American Plastics Council (APC)
- Society of Automotive Engineers (SAE)
- Society of Manufacturing Engineers (SME)
- Society of Plastics Engineers (SPE)
- Society of the Plastics Industry (SPI)
Machinery & Auxiliary Equipment
- Con Air
- Dynisco
- Engel
- Kice Industries, Inc
- Milacron Manufacturing Technologies
- Nissei
- Novatec
- Arburg
- RJG
Resin Processors, Compounders, Manufacturers & Distributors
- Advanced Elastomer Systems
- BASF (Plastics Portal)
- Bayer Corp.
- Cyro Industries
- Dow Plastics
- DSM Engineering Plastics
- Dupont Plastic
- Exxon Chemical
- Firestone Polymers
- GLS Corp. Thermoplastic Elastomers Division
- Huntsman Corp.
- SABIC
- Nova Chemicals Ltd.
- Occidental Chemical
- Phillips 66
- Rohm and Haas
- Sentinel Products Corp.
- Shell Chemical Co.
- Solutia (Monsanto)
- Solvay Polymers
- Ticona (Hoechst Celanese Corp.)
- Union Carbide Corp.

