Iberdrola, S.A., together with its subsidiaries, engages in the production, transmission, switching, distribution, and retailing of electric power or electricity by-products. The company also offers raw materials or primary energies required for electric power generation; energy, engineering, computer, and telecommunications services; and services relating to the Internet. In addition, it is involved in the treatment and distribution of water; provision of urban and gas retailing services, and other gas storage, regasification, transmission, or distribution activities, as well as in the distribution, representation, and marketing of various goods and services, products, articles, merchandise, computer programs, industrial equipment, machinery, machine and hand tools, spare parts, and accessories. Further, the company engages in the research, study, and planning of investment and corporate organization projects, as well as promotion, set up, and development of industrial, commercial, and service companies. Iberdrola, S.A. is headquartered in Bilbao, Spain.