Williams Industrial Services Group Inc. (WLMSQ) is a U.S.-based firm offering construction, maintenance, and support solutions, primarily catering to clients within the energy, power, and broader industrial sectors. Its core offerings encompass maintenance, modifications, and repair work, along with other capital project services, aimed at extending the operational lifespan of a wide range of facilities. These include nuclear, paper, chemical, fossil fuel, industrial gas, hydropower, and natural gas plants, among others. Additionally, Williams provides specialized services such as cleaning, surface preparation, coating application, quality control, and inspection testing, serving nuclear and fossil fuel power plants, as well as general industrial and petrochemical facilities. They also deliver industrial insulation solutions, particularly for power generation sites, and offer abatement services to remove hazardous materials like asbestos and heavy metal-based paints (e.g., lead paint). Further diversifying its portfolio, the company undertakes the conversion of analog control systems to digital ones in operational plants, provides decommissioning services for fossil power plants, and engages in the construction of nuclear power facilities. Its capabilities also extend to the installation, maintenance, and modification of water and wastewater systems, encompassing piping, pumps, and storage tanks. Moreover, Williams repairs, replaces, and upgrades roofing systems for industrial facilities, focusing particularly on pulp and paper manufacturing sites and nuclear power plants. Services are marketed both through dedicated sales and marketing teams and by the company's on-site operational staff. Historically, the company operated as Global Power Equipment Group Inc. before adopting its current name, Williams Industrial Services Group Inc., in June 2018. Founded in 1958, it is headquartered in Atlanta, Georgia. However, on July 22, 2023, Williams Industrial Services Group Inc. and its affiliated entities voluntarily filed for Chapter 11 reorganization in the U.S. Bankruptcy Court for the District of Delaware.