Metropolitano, a company formed in 1994 to take over rail concessions granted by the Argentine government, as part of railway privatisation during the presidency of Carlos Menem, operated commuter rail services over Línea San Martín, Línea Roca and Línea Belgrano Sur in Buenos Aires which had previously been run by state-owned companies since nationalisation of the railways in 1948.

The UGOFE was established as a S.A. on January 7, 2005 through a consortium formed by Ferrovías, Metrovías and Trenes de Buenos Aires (the companies operating the urban services in Buenos Aires Province) with the purpose of taking over the San Martín line until the Government of Argentina gave it in concession to a private company.

On May 24, 2012, the contract with TBA to operate the Mitre and Sarmiento lines was revoked after the Once station rail disaster.

[1] Both lines were temporarily operated by a consortium formed by Ferrovías and Metrovías, being TBA excluded from UGOFE a few days later.

On February 12, 2014, the Government of Argentina announced that some companies would take over the lines operated by UGOFE.