MWH is a provider of environmental engineering, construction and strategic consulting services. The company serves clients in the water, infrastructure, and renewable energy and sustainability sectors throughout the world. It offers design, risk management assessment, and master and project development planning solutions, as well as technical and economic feasibility studies services. MWH also provides laboratory testing, constructability review and alternative design analysis solutions. The company manages MWH Constructors, which is a subsidiary that serves municipal, federal and industrial clients throughout the United States and the United Kingdom. In addition, it develops project execution plans, detailed schedules and cost forecasts. MWH handles projects for dams, reservoirs, and water treatment and desalination plants.