Norwegian Government Security and Service Organisation reports to the Ministry of Local Government and Modernisation.

Their main purpose is to provide synergy for the ministries with cost-effective and reliable shared services. These include cleaning, security, switchboard, and postal services, as well as running computer systems and handling government publications. They have one department that works solely with government procurements. Some tasks of the agency are carried out by private contractors.

Norwegian Government Security and Service Organisation was established in 1979. In the early years, its main objective was to provide centralized services for the Ministries. Throughout the 1990s, G.S.S.O has  been used extensively as a tool for the Ministry of Local Government and Modernisation to reach its goals.