• Quality Coatings

• Rigid Component Systems

• Roof Domes LLC

• SIP Supply, LLC/Greenix Panels

• Sawtooth Wood Products & Equipment Co.

• Shelter Systems Corp.

• Sierra Stair Works, Inc.

• Southern Components, Inc.

• Span Truss Systems Ltd.

• Standard Structures

• Stone International, Inc.

• Structural Wood Products

• T D Snow & Son Inc.

• Tabu S.p.A.

• The American Institute of Timber Construction (AITC)

• Thomas Manufacturing, Inc.

• Thorne's Manufactured Homes

• Timber Truss Housing Systems Inc.

• Timberpeg

• TrimJoist

• Trus Joist MacMillan

• Truss Components, Inc.

• Unadilla Laminated Products

• Unit Structures Systems

• Universal Timber Structures

• Vermont Timber Works Inc.