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.

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.

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.

Laboratorios Farmaceuticos Rovi is engaged in the sale of its own pharmaceutical products and the distribution of other products for which it holds licenses granted by other laboratories for specific periods, in accordance with the terms and conditions contained in the agreements entered into with said laboratories.

Merlin Properties SOCIMI SA is a Spain-based company engaged in the operation of a real estate investment trust (REIT). The Company focuses on the acquisition, management and rental of commercial properties located in the Iberian Peninsula, primarily in Spain. The Company's activities are divided into the following segments: Office buildings, operating a portfolio of office space; High-street retail, engaged in leasing retail stores; Shopping centers, engaged in managing department stores; Logistics, operating logistics warehouses and distribution centers, and Others. The Company's other activities include property management services rendered to third parties.

Red Electrica is engaged in the transmission of electrical energy, the operation of the system and the management of the transmission network in the Spanish electricity system. In addition, through its subsidiaries, Co. is engaged in the acquisition, holding and management of foreign securities, co-ordination of international exchanges, provision of telecommunications services for third parties, provision of consultancy, engineering and construction services outside the Spanish electricity system, securing of funds, carrying out of financial transactions and provision of financial services.

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.