• Fire Fighter Sales and Service Company

• FischerSIPs, Inc.

• GEF INCORPORATED

• Homasote Company

• Insulspan Structural Insulated Panels

• International Paper

• Lamboo® Incorporated

• Louisiana Pacific Corporation

• M-Boss, Inc.

• Newport Fastener Co., Inc.

• Norbord Industries Inc.

• Panel Source International Inc. (PSI)

• Plastiglas Industries Ltd.

• Premier Building Systems

• Premoule Inc.

• SIP Supply, LLC/Greenix Panels

• Stramit USA

• Swisspearl

• The Murus Company

• Thermal Foams, Inc.

• Wilson Construction Co., Inc.

• deXstone LLC.

• reThink Wood