Den norske Bank or DnB was a Norwegian bank that existed between and when it The state held a majority ownership in the bank in addition to its being listed on the Oslo Stock Exchange. In , DnB bought Vital Forsikring Headquarters : Bergen, Norway. DNB ASA (formerly DnB NOR ASA) is Norway's largest financial services group with total combined assets of more than NOK trillion and a market capitalisation NOK billion as per 20 May The Group includes brands such as DNB, Vital, Nordlandsbanken, Cresco, the two banks Den norske Bank (DnB) and Gjensidige NOR merged in. Den norske Bank ASA, Postal address: NO Oslo, Norway - Visiting address: Stranden 21, Oslo. Telephone + 47 22 48 10 50 - Telefax +.