Guillermo Martínez de Simón Santos

Administrador de Infraestructuras Ferroviarias is a public entity engaged in the operation and maintenance of the railway transportation systems and infrastructure of Spain. Its responsibilities include the collection of fees for infrastructure, station, and freight terminal use, and the distribution of capacity to rail operators. The company was founded in 1941 and is headquartered in Madrid, Spain.

Part of Tee Territorio Economia y Empresa SL, Puertos del Estado is a maritime port company based in Madrid, Spain. The Spanish company provides regulations and port legislation, general services, border installations of goods, observatory market port services, port recognitions of maritime works, and next-generation menu menu consultations. Puertos del Estado was acquired by GTD Sistemas de Información SA on February 08, 2018.

Renfe Operadora SC provides passenger and freight rail transport services. It offers long distance passenger and freight rail transport services. The company was founded in 2005 and is headquartered in Madrid, Spain.