Southwest Gas Holdings, Inc., through its subsidiaries, purchases, distributes, and transports natural gas for residential, commercial, and industrial customers in Arizona, Nevada, and California. The company operates through two segments, Natural Gas Distribution and Utility Infrastructure Services. It offers tariff sales and transportation services. The company also provides installation, replacement, repair, and maintenance of energy distribution systems, as well as undertakes gas construction works in North America. Southwest Gas Holdings, Inc. was incorporated in 1931 and is headquartered in Las Vegas, Nevada.