Acciona, S.A., together with its subsidiaries, engages in the infrastructure, renewable energy, and other business in Spain and internationally. The company develops, constructs, operates, and maintains wind, solar photovoltaic, solar thermal, hydro, and biomass plants. It also engages in the construction, engineering, maintenance, and management of public work concessions primarily in the field of transport and social infrastructures, including bridges, roads, and special projects; railroads and tunnels; and hospital and university projects, irrigation, and ports, as well as projects in engineering, concessions, and other businesses. In addition, the company designs, constructs, and operates drinking water treatment plants, desalination facilities, wastewater treatment plants, and tertiary treatment plants for water reuse; and offers service management services, which include water treatment, delivering it to inhabitants, treating urban and industrial wastewater, and billing end-users, as well as undertakes industrial projects. Further, it provides facility, airport handling, waste collection and treatment, logistics, technical, energy, forwarding, rail, urban and environmental maintenance, healthcare, smart city, and event and museum services. Additionally, the company engages in the financial intermediation, fund management, real estate, stock broking, wine production, and other businesses. Acciona, S.A. is headquartered in Alcobendas, Spain.