Firma U - Frogner Oslo
- Urbanwell AS
- Ultrabody AS
- Urd AS
- Utleiemegleren AS
- Unic eiendom AS
- Ungdomskonsulent Bisgaard
- Unni Gumbs
- Ulrikke Døvigen
- Ung Dialog
- Ungdomsforening Runo
- Ulf Prytz
- Unsgård Holding AS
- Ungarns ambassade
- Utegym.Org
- Ungarns ambassade
- Usynlige Skilt
- Utopia Workshop AS
- Uranienborg Rotaryklubb
- Unik Dør AS
- Unikt prosjekt AS
- Utviklingssenteret Tryggestad
- Unikt gulv AS
- Urge.no
- Unique beauty AS
- Umbrella Media
- Ulrik Rolfsen
- Unni Gulliksen
- Utleiemegleren Frogner
- Uranienborg Majorstuen Historielag
- Unimpex Olga Ruud
- Unit One eiendom AS
- Ulf Thoresen Ulstein
- United Clothing Nordic
- Ulrik Ibsen Thorsrud
- Unisco Christine Lemme
- Ummuhan Ezra mat
- Upnorth Productions Martin Bjercke
- Uventa Kreativitet Andreas Reutz
- Uranienborg Skoles 17. Mai komite
- Union Des Congolais En Norvege
- Uno booking Mohammed Abdulkadir Nur
- Ulla-Karin Engstrøm spesialist i Periodonti