Pipe and/or Fitting Manufacturers

• Aquatherm

• CB Supplies, LTD

• Centennial Plastics

• Charlotte Pipe and Foundry Company

• Flying W Plastics

• GF Building Flow Solutions (previously Uponor)

• Golan Plastic Products LTD

• Heatlink Group Inc

• Hongyue Plastic Group Co., Ltd

• Interplast

• IPEX USA LLC

• ISCO Industries, LLC

• K-Flex

• Legend Valve

• MrPEX Systems

• NuMex Plastics

• NUPI Americas

• Pipex

• Polytubes

• PTM

• QualPol

• REHAU

• Reliance Worldwide

• Titeflex Gastite Division

• Versaprofiles, Inc.

• Victaulic

• Viega LLC

• Watts Water Technologies

• Wavin (including Bow Plastics)

• WL Plastics

• Zurn PEX, Inc.

Resin/Additives/Other Equipment or Product Suppliers

• Ampacet Corporation

• Avient Corporation

• Baystar

• Borealis GmbH

• Dow Chemical

• ExxonMobil Chemical Company

• Formosa Plastics Corporation

• INEOS Olefins & Polymers USA

• Kafrit NA Ltd

• Lubrizol

• LyondellBasell Industries

• Muehlstein

• RTP Company

• SACO AEI Polymers, Inc.

• Silon US

• Teknor Apex

International Affiliates

• Alwasail

• Interplast LTD

• Iplex Pipelines Limited

• Ningbo Minde Building Materials

• Rarean Fluid-Tech Private Limited

Machine Equipment Manufacturers

• Battenfeld-Cincinnati

• Bausano USA

• Fangli Technology Inc.

• FB Balzanelli USA, Inc.

• INOEX

• Krauss Maffei

• McElroy Manufacturing, Inc.

• Milacron LLC

• Reel Power Industrial Inc.

• Ritmo America, LLC

• SICA America

• SIKORA International Corporation

• Unicor North America

• Vecoplan LLC

• Weber Extrusion

• Wegener Welding, LLC

Education, Research, Testing, & Consulting

• American Society of Plumbing Engineers

• Apex Applied Science and Engineering

• Crossroads Engineering Services

• CSA Group

• Ekometrik

• Element Materials Technology

• Exponent Inc.

• IAPMO

• ICC Evaluation Service

• IGSHPA

• NSF International

• Sandstrum Consulting Services LLC

• SKZ Testing GmbH

• TRI Environmental