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.

CIE Automotive is the parent company of an industrial group formed by several companies that are engaged in the design, manufacture and sale of automobile component and sub-units on the world market. In addition, Co. is also engaged in the bio-fuels business which is in the initial stages of development and is made up of various companies devoted to the production and distribution of bio-fuels.

International Airlines Group is an international scheduled airline and global premium airlines. Co.'s principal place of business is London with significant presence at Heathrow, Gatwick and London City airports.

NH Hotel is engaged in the operation and management of hotels throughout Spain, the Benelux countries, Germany, and South America.

Repsol is an oil and gas company. Co. is engaged in all the activities relating to the oil and gas industry, including exploration, development and production of crude oil and natural gas, transportation of oil products, liquefied petroleum gas (LPG) and natural gas, refining, the production of a wide range of oil products and the retailing of oil products, oil derivatives, petrochemicals, LPG and natural gas, as well as the generation, transportation, distribution and supply of electricity. Co. operates in more than 40 countries. Co.'s operations are divided into four segments: Upstream, Downstream, LNG and Gas Natural Fenosa.

Siemens is a technology company. Co.'s Energy sector provides a range of products, solutions and services for generating and transmitting power. The Healthcare sector provides customers a range of medical solutions across the treatment chain. The Industry sector supplies products and solutions for industrial companies, primarily in the process and manufacturing industries. The Infrastructure & Cities sector provides a range of technologies that accelerates the capabilities of metropolitan centers and urban infrastructures. The Investments segment is comprised of Co.'s equity stakes in other companies. The Financial Services segment provides business-to-business financial solutions.