Simpson Manufacturing Co., Inc. engages in the manufacture and marketing of building and construction solutions. The company is headquartered in Pleasanton, California and currently employs 5,158 full-time employees. Its wood construction products include connectors, truss plates, fastening systems, fasteners and prefabricated lateral resistive systems. Its wood construction products are used in light-frame construction. Its concrete construction products include adhesives, chemicals, mechanical anchors, carbide drill bits, powder actuated tools, fiber reinforced materials and other repair products used for protection and strengthening. Its concrete construction products are used in concrete, masonry and steel construction. The company markets its products to the residential construction, light industrial and commercial construction, remodeling and do-it-yourself markets. The firm also operates as designer and manufacturer and distributor of fixing and fastening solutions for the European building and construction market.