Alpine Engineered Products is part of Illinois Tool Works (ITW). The ITW Building Components Group Inc. is a leading worldwide supplier of technology-driven products and services for the building component industry including wood truss, floor truss, roof truss and steel truss design, engineering, as well as truss connectors & hangers and fire resistant systems.

Simpson Strong-Tie® Manufacturer of structural connecting systems for wood, steel, masonry, concrete, and composite wood building construction

SBCA’s Wood Truss Council Established in 1983, SBCA has become the only international trade association representing manufacturers of structural building components.