Aena SME SA, formerly Aena SA, is a Spain-based company primarily engaged in the airports operation. Its activities are divided into four segments: Airports, which comprises Aeronautical subdivision, responsible for the management of airports, jetways, security, handling, cargo and fuel services, among others, as well as Commercial subdivision, including duty-free and specialty stores, restaurant services, car rental, as well as banking services and advertising; Services outside the terminal, which manages real estate assets, such as parking lots, warehouses and lands; International, which comprises operations of Company's subsidiary, Aena Desarrollo Internacional SA, that invests in other airport owners principally in Mexico, Colombia and the United Kingdom; and Others, encompassing corporate activities. It manages tourism, hub and regional airports, as well as heliports and general aviation areas. Furthermore, its destination range comprises Europe, the Americas, Asia and Africa.

Caixabank is an investment company based in Spain. Co. is involved in investment portfolio management activities across two areas: Services and Financial Business and Insurance. In the services area, Co. provides investment solutions for companies involved in the infrastructure, energy, services and entertainment sectors. In the financial business and insurance area, Co. is engaged in the investments for international banks, insurance and specialist financial services. Co. focuses most of its banking investments in India, China, the U.S., and Central and Eastern Europe with a particular interest in retail banking. Co. is also involved in the disinvestments activities.

ING Groep is a global financial institution based in the Netherlands. Co. is engaged in offering a wide range of retail and wholesale banking services to customers in over 40 countries across Europe, the Americas, Asia and Australia. In addition to the basic banking services of lending, payments and cash management and treasury, Co. provides tailored banking solutions in areas including corporate finance, commercial finance (factoring), equity markets and debt capital markets to help clients achieve their business goals. Co.'s operations are organized along five segments: Retail Netherlands; RetailBelgium: Retail Germany: Retail Other; and Wholesale Banking.

Melia Hotels International is the parent company of a group engaged in the acquisition, management and operation of hotels. Co. operates its hotel network in Germany, Argentina, Brazil, Bulgaria, Cabo Verde, Chile, China, Costa Rica, Croatia, Cuba, Egypt, Spain, United States, France, Greece, Netherlands, Indonesia, Italy, Luxembourg, Malaysia, Mexico, Panama, Peru, Portugal, Puerto Rico, United Kingdom, Dominican Republic, Singapore, Switzerland, Tunisia, Uruguay, Venezuela and Vietnam under the followings brandnames: Paradisus Resorts®, Melia Hotels & Resorts®, TRYP Hoteles® and Sol Hotels & Resorts®.

Talgo is engaged in designing, manufacturing, repairing and maintaining the railway rolling stock, as well as the manufacturing, assembling, repairing and maintaining the engines, machinery and parts of the railway systems. Co. has an industrial presence in seven countries: Spain, Germany, Kazakhstan, Uzbekistan, Russia, Saudi Arabia and U.S.A. Co. has an active fleet in Europe, Asia and North America that comprises of 94 high-speed trains and more than 1,400 Talgo tilting passenger cars. Also, Co. purchases, redesigns, constructs, leases and sells all types of real estate.