DNB ASA (formerly DnB NOR ASA) is Norway's largest financial services group with total combined assets of more than NOK 1.9 trillion and a market capitalisation NOK 164 billion as of 20 May 2016. DNB's head office is located in Oslo.The history of the group goes back to 1822 with the establishment of Christiania Sparebank. The present corporation consists of mergers between Christiania Sparebank (1822), Gjensidige (1847), Bergens Privatbank (1855), Den norske Creditbank (1857), Fellesbanken (1920), Bergens Kreditbank (1928), Postbanken, Vital and Nordlandsbanken.