Members

• Additives Plastics Group
• Advanced Drainage Systems
• Agru America
• Aquatherm
• Armtec
• Asahi-America
• Attwell Plastics Corporation
• Auray Managing S.L.
• AVIENT CORPORATION
• BASF CORP
• Battenfeld-Cincinnati USA
• Bayport Polymers LLC
• Blue Diamond Industries
• Borealis
• Bow Plumbing Group
• BRASKEM IDESA SAPI
• Carriff Engineered Fabrics
• CDS Inc.
• Centennial Plastics, Inc.
• Charter Plastics, Inc.
• Chevron Phillips Chemical
• Chroma Color Corporation
• Core & Main
• Corma Inc.
• Crumpler Plastic Pipe, Inc.
• CT Piping Solutions
• Davis Standard
• Dow Chemical
• Dura-Line Corporation
• Evonik Corporation
• Fast Fusion, LLC
• FB Balzanelli USA, Inc.
• FIMEX-TKP
• FlexSteel Pipeline Technologies
• Formosa Plastics Corp., USA
• Four Star Industries
• Fraser Plastics Ltd
• Fratco, Inc.
• Georg Fischer Central Plastics LLC
• Golan Plastic Products LTD
• Hamilton Kent
• Harco Fittings
• Haviland Drainage Products
• Heatlink Group Inc
• High Country Fusion Company, Inc.
• INEOS Olefins & Polymers USA
• Infra Pipe Solutions Ltd
• Ingenia Polymers Group
• iNOEX LLC
• Integrity Fusion Products, Inc.
• IPEX USA LLC
• ISCO Industries, LLC
• JM Eagle
• Kafrit NA Ltd.
• Kerotest Manufacturing Corp.
• Krauss Maffei
• Lane Enterprises, Inc.
• Legend Valve
• Les Plastiques DC Inc.
• Lubrizol
• LyondellBasell
• M.T. Deason Company
• Marco Polo
• McElroy Manufacturing, Inc.
• Mercury Plastics LLC

• Milacron LLC
• Milford Companies
• Modern Dispersions, Inc.
• Modern Polymer Products, Inc.
• Mr. PEX Systems
• Muehlstein
• NanoXplore
• NOV Fiber Glass Systems
• Nova Chemicals
• NUPI Americas
• Oregon Plastic Tubing
• Orion Engineered Carbons
• Osterman & Company
• Pacific Corrugated Pipe
• Performance Pipe
• Pipeline Plastics, LLC
• Plasson USA
• Plastics Technology De Mexico S De RL De CV
• Policonductos, S.A. DE C.V.
• Poloplast
• Polyflow
• Press-Seal Corporation
• Prinsco Inc.
• Quantum Polymers
• R.W. Lyall & Co., Inc.
• Red-White Valve Corp
• REHAU Inc.
• Reliance Worldwide Corp.
• Rifeng Systems Co., LTD
• Ritmo America, LLC.
• River Valley Pipe, LLC
• RTP Company
• SABIC
• Saco AEI Polymers Inc.
• Shawcor Composite Production Systems
• Shell Chemicals LP
• SICA America
• SIKORA International Corporation
• Smartpipe Technologies
• Soleno Inc.
• Soucy Techno
• Southeast Culvert, Inc.
• Southwire
• Strongbridge-Tega
• TDR
• Teel Plastics
• Tex-Trude Pipe Company
• Timewell Drainage Products
• Trademark Plastics Corporation
• TUBI USA
• Unicor North America
• United Poly Systems, LLC
• Uponor, Inc.
• Valencia Pipe Company
• Valtic, S.A. DE C.V.
• Versaprofiles Products Inc.
• Victaulic
• Viega LLC
• Watts Water Technologies
• Wegener Welding LLC
• Widos Welding, LLC
• WL Plastics Corp
• Wolseley
• YogaPipeACR
• Zurn PEX, Inc.

Professional Members

• Advanced Blending Technologies
• Alliance for PE Pipe
• American Society of Plumbing Engineers
• Bryan Hauger Consulting, Inc.
• Crossroads Engineering Services
• CSA Group
• Element Materials Technology
• IAPMO
• ICC Evaluation Service
• NSF International
• PSILab, Inc.
• Simpson, Gumpertz & Heger
• SKZ Testing GmbH
• TRI Environmental
• UL LLC
• W.R. Grace & Company

Individual Consultants

• Harvey Svetlik Consulting, Inc.
• Palermo Plastics Pipe Consulting
• Thompson McLean Associates
• Zumi Technical Marketing

International Affiliates

• Interplast
• Wavin B.V.
• Zhongyuntech Corrugated

Distributor Members

• AFD, Inc.
• APSCO, Inc.
• Core & Main
• Gajeske, Inc.
• High Country Fusion Company, Inc.
• ISCO Industries, LLC
• Sandale Utility Products Inc.
• Wolseley

Honorary Lifetime Members

• Robert L. Ayres
• Michael Byrne
• Jim Craig
• Ivan DeBlieu
• Jim Goddard
• Gerry Groen
• Jim Inhofe
• Stan Mruk
• Paul Petro
• Gary Runyan
• Harvey Svetlik
• George Zagorski

Retired Individual

• Tom Fussner