Simpson Manufacturing Co Inc is a manufacturer of wood construction products. The company offers connectors, truss plates, fastening systems, fasteners, prefabricated lateral systems, concrete construction products, adhesives, mechanical anchors, carbide drill bits, powder-actuated tools, and fiber-reinforced materials. Simpson Manufacturing markets its products to the residential, light industrial, and commercial construction markets as well as the remodeling and do-it-yourself markets. The largest end market is the United States. The Company is organized into three reporting segments defined by the regions namely North America, Europe, and Asia Pacific. The company generates the majority of its revenue from wood products.