VSI membership is composed of manufacturers of vinyl and other polymeric siding and suppliers to the industry. 

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

VSI Member Company List

*Manufacturer Members indicated with Asterisk.

• Alternative Rubbers & Plastics, Inc.
• American Maplan Corporation
• American Original Building Products LLC*
• Americhem, Inc.
• Architectural Testing, Inc.
• Arkema Inc.
• Associated Materials Incorporated*
• Atlas Material Testing Technology LLC
• Axiall Corporation
• BASF Corporation
• CertainTeed Corporation*
• CCL Industries Inc.
• Color Master, Inc.
• Dow Chemical Company
• Formosa Plastics Corp. USA
• Galata Chemicals, LLC
• Holland Colours Americas Inc.
• Honeywell International, Inc.
• Huntsman Corporation
• IHS Global, Inc.
• INEOS Styrolution
• JP Industrial Products
• Kaneka North America LLC
• KP/Kaycan*
• Lanier Color Company, Inc.
• Mitten Inc.*
• Norac, Inc.
• Novik, Inc.*
• OMYA, Inc.
• Oxy Vinyls LP
• Penn Color, Inc.
• Ply Gem Siding Group*
  
• PMC Group
• Progressive Foam Technologies, Inc.
• ProVia*
• Q-Lab Corporation
• Rheogistics, LLC
• Royal Building Products*
• Shintech Inc.
• Style Crest, Inc.*
• The Shepherd Color Company
• The Tapco Group*
• Westlake Chemical Corporation