Simpson Manufacturing Co., Inc., through its subsidiary, Simpson Strong-Tie Company Inc. designs, engineers and manufactures structural solutions for wood, concrete, and steel connections. Its wood construction products include connectors, truss plates, fastening systems, fasteners and shearwalls, and concrete construction products. Its wood construction products are used in light-frame building applications. Its concrete construction products include adhesives, chemicals, mechanical anchors, carbide drill bits, fiber reinforced materials and other repair products used for protection and strengthening structures. Its concrete construction products are used in concrete, masonry and steel construction. It markets its products to the residential construction, light industrial and commercial construction, remodeling and do-it-yourself markets. It also operates as designer and manufacturer and distributor of fixing and fastening solutions for the European building and construction market.