[2] Part of the group was sold to Babcock International on 31 March 2015, while the remainder became the Defence Electronics and Components Agency (DECA) on 1 April 2015.

DSG offered maintenance, repair and overhaul of military air and land equipment, mobile and in-barracks equipment support, fleet management, calibration, electronics, components and logistic support.

DSG undertook a partnership with both Deeside College and Airbus UK to train its aeronautical engineers based at RAF Sealand.[when?]

In October 2010 the government announced that DSG was to be sold off,[3] along with other corporate assets, telecommunications spectrum and Marchwood Military Port.

In November 2014, Babcock International was announced as the preferred buyer of DSG's land repair and maintenance business, and a sale for £140 million was reached in December 2014.