Cellnex Telecom SA is a Spain-based company engaged in the wireless telecommunications (telecom) business. Its activities are divided into three segments: Broadcasting infrastructure, Telecom site rental, as well as Network services and other. The Broadcasting infrastructure division comprises distribution and transmission of television (TV) and frequency modulation (FM) radio signals, operation and maintenance (O&M) of radio broadcasting network, as well as over-the-top (OTT) radio services, among others. The Telecom site rental division provides access to wireless infrastructure, primarily through infrastructure hosting and telecom equipment co-location, mainly for mobile network operators and other wireless and broadband telecom network operators. The Network services and other division offers connectivity services for a variety of telecom operators and radio communication, among others. The Company also develops 5th generation mobile networks (5G) through Alticom BV.

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.

Grupo Empresarial San Jose SA is a Spain-based holding company. The Company's main activities are structured in four business areas: Construction, which comprises the construction, design and execution of public and private infrastructure projects; Real Estate, which specializes in the acquisition and development of residential and non-residential properties; Energy and Environment, focused on the initiation, development and operation of energy efficiency projects using renewable energy, and Concessions and Services, which includes the management, operation, exploitation and maintenance of infrastructure, hospitals, public and private facilities, urban real estate, parks and gardens. The Company is a parent of such a number of controlled entities as Constructora San Jose SA, Cartuja Inmobiliaria SAU, Desarrollos Urbanisticos Udra SAU, San Pablo Plaza SAU and Comercial Udra SA, among others.

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.

Vidrala SA is a Spain-based company principally engaged in the glass industry. The Company operates through two segments: Spain and European Union. The Company's activities include the production, distribution and sale of glass bottles and containers used in the food and beverages industries. The Company conducts its own research and development (R&D) operations. It operates production plants and melting furnaces located in such countries, as Portugal, France, Belgium and Italy. The Company owns such subsidiaries as Crisnova Vidrio SA, Inverbeira Sociedad de Promocion de Empresas SA, Gallo Vidro SA, Castellar Vidrio SA, Corsico Vetro SRL, MD Verre SA, Omega Immobiliere et Financiere SA, Investverre SA and CD Verre SA.