Firma U - Røa
- Utviklingssentralen AS
- Unikfoto AS
- Ultimatetek AS
- Undseth AS
- Utsudr AS
- Unc AS
- Ulysses AS
- Uaniya Vetija
- Ullern Seilforening
- Uv Flooring AS
- Ulf Kolstad
- Unorsk Holding AS
- Ulleland Musikkservice
- Unni Vik
- Ulakollen Vel
- Usman Walid
- Udc Holding AS
- Ung Inkludering
- Ung Inkludering
- Unitotal AS Konkursbo
- Unitotal AS Konkursbo
- Ulriksborg Yogini Kristi -
- Unn Bente Refsnes
- Uniqom Aleksander Brekke
- Usato Second Hand
- Unike møbler Izabela Bak
- Ulvin Gartner og Eiendomsdrift
- Uta Int Ulf Tore Andersen
- Utsikten Lydstudio Marius Westerbø Berthelsen
- Utvalget for Harmonisk Fortetting i Småhusområdene