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.

• American Original Building Products LLC*
• Americhem, Inc.
• Intertek
• Arkema Inc.
• Associated Materials Incorporated*
• Atlas Material Testing Technology LLC
• BASF Corporation
• Boral Building Products
• CertainTeed LLC*
• Color Master, Inc.
• Cornerstone Building Brands*
• Derby Building Products, Inc.
• Dow Chemical Company
• Formosa Plastics Corp. USA
• Galata Chemicals, LLC
• Holland Colours Americas Inc.
• Honeywell International, Inc.
• IHS Global, Inc.
• INEOS Styrolution America, LLC
• Kaneka North America LLC
• KP/Kaycan*
• Lanier Color Company, Inc.
• Mitten Inc.*
• Norac, Inc.
• OMYA, Inc.
• Oxy Vinyls LP
• Penn Color, Inc.
  
• PMC Group
• Progressive Foam Technologies, Inc.
• ProVia*
• Q-Lab Corporation
• Rheogistics, LLC
• Royal Building Products*
• Shintech Inc.
• Style Crest, Inc.*
• Westlake Chemical Corporation