Iberdrola is a holding company. Through its subsidiaries, Co. operates in four segments: network business, which includes all the energy transmission and distribution activities, and other regulated activity originated in Spain, the U.K., the U.S. and Brazil; deregulated business, which includes electricity generation and sales businesses as well as gas trading and storage businesses carried on by Co. in Spain, Portugal, the U.K. and North America; renewable business, with activities related to renewable energies in Spain, the U.K., the U.S. and the rest of the world; and other businesses, including the engineering and construction businesses and the non-power businesses.

Gestevision Telecinco is a television network company based in Spain. Co. heads a group of dependent companies, which form the Telecinco Group. Through its subsidiaries, Co. is engaged in the management and commercial exploitation of a television network. Co.'s television network acquires, produces, and distributes audiovisual content. Co. also sells the network advertising airtime, carried out by its subsidiary. In addition, Co. is involved in the sale of other advertising products; production of news programs; the production and sale of audiovisual property rights; and teleshopping.