​On 1^st June 2004 the pre-existent RISTA-IEW Grouping, constituted in 2001, changed its name into RISTA-IEW Brigade.

It has originated from the Electronic Defence Centre (CDE) constituted in 1963 with the acquisition of the 9^th Signals Battalion, that was formed on 1^st April 1959 in Rome as a result of the transformation of the I-RG Signals Special Company, and the personnel of the 11^th Signals Battalion.

Composed by personnel belonging to the artillery and signals Corps, the Centre has increased its competences constituting a "Signal Intelligence Nucleus" that has given rise to the 8^th "Tonale" Signals and Electronic Research Battalion.

After having changed its name into Information and Electronic Defence Centre (CIDE) in 1980, it included the 8^th "Tonale" Battalion and the 9^th "Rombo" Battalion. In that organization, it has got at its dependencies the 33^rd "Falzarego" Electronic War Battalions and the 41^st "Cordenons" Specialists Artillery Group.

It was suppressed on 31^st December 1997 and it was substituted by the Information and Electronic War Department that included the IEW Centre. On 19^th May 1998 the Department was reorganized into RISTA-EIW Grouping, included in the new C4 IEW Command, at the dependencies of the Operational Land Forces Command; on 1^st June 2004 it assumed the current name.