 He contributed a generation infrastructure projects in a number of areas of Mexico.In 1947, he founded Ingenieros Civiles Asociados (ICA) ("Associated Civil Engineers"), an engineering firm for high technology projects that grew to be a "massive construction multinational", building much of the infrastructure of modern Mexico.These projects included the Mexico City Metro, the 100-km tunnel to drain the sewage from Mexico City, Basilica of Our Lady of Guadalupe, stadiums such as Estadio Azteca, Palacio de los Deportes, Foro Sol, and other sport stadiums such as Hipódromo de las Américas, C.U Stadium and the Olympic Pool.