Acciona is the parent company of a construction group. Co. is engaged in general construction activities in the areas of civil engineering and buildings, including railways, marine and hydraulic works, motorways and airports, town planning, conduits, pavements, parking lots, and industrial and urban buildings. In addition, Co. is engaged in the provision of real estate services, the operation of parking lots, telecommunications, services, ecology and alternative means of energy. Co.'s operations are organized in six business divisions: Infrastructures, Real Estate, Energy, Water, Environmental & Urban Services and Logistic & Transport Services.

Enagas is a gas transportation company based in Spain. Co. is engaged in the technical distribution and storage of gas through pipelines as well as the provision of regasification services. Co. and subsidiaries are engaged in the ownership, administration, storage, pipeline transportation, distribution flow, and sale of natural gas. As a transport company, Co. also provides gas and manages the gas infrastructures.

Tecnicas Reunidas is a general contractor company based in Spain. Co. engages in the engineering, design, and construction of industrial facilities for refining and petrochemical, oil and gas, power, and infrastructure and industries sectors worldwide. Co. constructs nuclear plants, conventional thermal plants, and renewable energy and cogeneration facilities for power sector; refineries and facilities for petrochemicals; water treatment, desalination, waste management, air, land, and marine transport facilities; and liquefaction, and storage facilities, as well as oil and gas fields and pipelines. Co. also provides engineering, management and operating services for industrial plants.

Telefonica is engaged in the provision of public or private telecommunications services, including ancillary or complementary telecommunications services or related services. Co.'s fixed business includes: traditional fixed telecommunication services, Internet and broadband multimedia services, data and business-aplications services, and wholesale services for telecommunication operators. Co. also provides a range of mobile and related services and products to consumer and business customers, including mobile voice services, value added services, mobile data and Internet services, wholesale services, corporate services, roaming, fixed wireless, and, trunking and paging.

Vocento is engaged in the editing, distribution and sale of unit or periodic publications of general, cultural, sport, artistic or any other nature type of information, as well as the printing and sale of printing warehouses and any other activities related to the editorial industry and graphic arts. Co. is also engaged in the establishment, utilization and sale of radio stations, television stations and other types of installations for the emission, production and promotion of audiovisual media, as well as the production, edition and distribution of discs, tapes, magnet phonic tapes, programs, films and all other types of communication media.