VSI membership is composed of manufacturers of vinyl and other polymeric siding and suppliers to the industry. To contact manufacturers directly about specific product information, see our manufacturers contact list.

Click here to find out how to become a VSI member.

*Manufacturer Members indicated with Asterisk.

• American Maplan Corporation
• Americhem, Inc.
• Architectural Testing, Inc.
• Arkema Inc.
• Associated Materials, Inc.*
• Atlantis Molded Plastics*
• Atlas Material Testing Technology LLC
• Avery Dennison
• BASF Corporation
• CertainTeed Corporation*
• Chemtura Corporation
• CMAI
• Color Master, Inc.
• Colormatrix Corporation
• Crane Performance Siding*
• Dow Chemical Company
• E.I. du Pont de Nemours & Co.
• Ferro Corporation
• Formosa Plastics Corp. USA
• Georgia Gulf Corporation
• Heartland Building Products, Inc.*
• Holland Colours Americas Inc.
• Honeywell International, Inc.
• IMERYS Pigments & Additives Group
• Infinite Building Products, Inc.*
• Kaneka Texas Corporation
• KP Building Products/Kaycan*
• Lanier Color Company
• Lubrizol Advanced Materials, Inc. (formerly Noveon, Inc.)
• Milacron Inc.
• Millennium Inorganic Chemicals, Inc.
• Mitten Inc.*
• Nailite International, Inc.*
• Norac, Inc.
• OMYA, Inc.
• Oxy Vinyls LP
• Penn Color, Inc.
• Ply Gem Siding Group* (formerly Alcoa Home Exteriors, Inc. and Variform, Inc.)
• Progressive Foam Technologies, Inc.
• Q-Lab Corporation
• RADCO
• Rheogistics, LLC
• RLC Technologies, LLC (Associate Member)
• Rohm and Haas Company
• Royal Building Products*
• Shintech Inc.
• Style Crest, Inc.* (formerly Resource Materials Corporation)
• The Foundry*
• The Shepherd Color Company
• Westlake Chemical Corporation