Pipe and/or Fitting Manufacturers

• Atkore - United Poly Systems (HDPE)

• Blue Diamond Industries

• Cascade Poly Pipe and Conduit

• Centennial Plastics

• Dura-Line LLC

• Endurance Poly Producers

• Flying W Plastics

• Infra Pipe Solutions Ltd

• IPEX USA LLC

• JM Eagle

• OSI Plastics Division of Ohio Steel Industries

• Petroflex N.A., Ltd

• Polytubes

• QualPol LLC

• Southwire

• Teel Plastics

• WL Plastics

Education, Research, Testing, & Consulting

• Advanced Blending Technologies, LLC

• CSA Group

• Element Materials Technology

• NSF International

• PSILab, Inc.

• SKZ Testing GmbH

• TRI Environmental

• UL LLC

• W.R. Grace & Company

Machine Equipment Manufacturers

• CDS (Custom Downstream Systems)

• Davis Standard

• INOEX

• Krauss Maffei

• McElroy Manufacturing, Inc.

• Milacron LLC

• SIKORA International Corporation

• Zumbach Electronics Corporation

Resin/Additives/Other Equipment or Product Suppliers

• Additives Plastics Group

• Ampacet Corporation

• Bayport Polymers LLC

• Chevron Phillips Chemical

• Chroma Color Corporation

• Dow Chemical

• Formosa Plastics Corporation

• INEOS Olefins & Polymers USA

• LyondellBasell Industries

• Modern Dispersions, Inc.

• Muehlstein

• NOVA Chemicals

• Plastics Technology De Mexico

• Quantum Polymers

• RTP Company

• Shell Polymers