Ferrovial is a transportation company based in Spain. Co. is engaged in operations in the transportation sector. Co. specializes in the design, construction, management, administration and maintenance of transport infrastructures. Co.'s services range also includes the maintenance of parking lots, and land-, sea- and air-based transport networks. Co. is also engaged in the promotion and operation of short-stay parking lots, parking regulation and management services and promotion and sale of residents' parking.

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.

Sacyr is the parent company of a group engaged in the acquisition, development and construction of urban properties for their subsequent rental or resale. Co. primarily leases and sells office buildings and complexes, housing units, and shopping centers. Co. is also engaged in the operation of urban car parking facilities. Co. offers services related to the real estate industry such as technical assistance in energy savings, inventory management, architectural design, telecommunications management, property maintenance, as well as gardening and landscaping. Co. also provides consulting services in the real estate fund management sector.