Simpson Manufacturing Co., Inc. engages in the manufacture and marketing of building and construction solutions. It offers wood construction products, which include connectors, truss plates, fastening systems, and lateral systems primarily used to strengthen, support, and connect wood applications in residential and commercial construction, as well as do-it-yourself (DIY) projects, concrete construction products such as anchor, repair, and protection, and strengthening products for concrete, brick, and masonry applications in industrial, infrastructure, residential commercial, and DIY projects. It operates through the following geographical segments: North America, Europe, Asia/Pacific, and Admin and All Other. The North America segment covers the United States and Canada operations. The Europe segment includes operations primarily in France, the United Kingdom, Germany, Denmark, Switzerland, Portugal, Poland, the Netherlands, Belgium, Sweden, and Norway. The Asia/Pacific segment represents Australia, New Zealand, South Africa, China, Taiwan, and Vietnam. The company was founded by Barclay Simpson in 1956 and is headquartered in Pleasanton, CA.