SEOPAN, Association of Infrastructure Contractor and Concessionaires, was created in 1957 with the objective of actively promoting investments in infrastructure, in addition to advocating for public/private collaboration projects as decisive elements for competitiveness and economic growth in Spain. In 2014, it merged its activities with ASETA (Spanish Association of Motorways, Tunnels, Bridges and Other Toll Road Concessionaire Companies) and ATTA (Technical Association for Water Treatment) in order to take advantage of synergies, strengthen the defense of its members, expand its national and international activity and increase its representation. The organization has 37 full-fledged members dedicated to the construction and management of public infrastructure through concessions. Of these, six are listed on the Madrid Stock Exchange. Together, the members represent a production volume of nearly €86 billion, providing employment to more than 330,000 people. The aims of SEOPAN are to promote and defend private initiative, the market economy, and free enterprise in the construction, infrastructure concessions, and water technology sectors, and to protect the common interests of its members before public administrations, institutions, and society, as well as to represent them before all of them, both in Spain and abroad.