Firma U - Alnabru
- Utsiktgården AS
- Utleieverktøy AS
- Uterom AS
- Utleiesenteret
- Ursus AS
- Unijon AS
- Ulvenlegene AS
- Uno Limited
- Utel systems AS
- UniformPartner Oslo
- Us Ford AS
- Ulriksen consulting
- Unicare omsorg AS
- UPS Norway AS
- Unicare hjemmetjenester AS
- Ullevålsveien 114 AS
- Uab Boltara
- Ullevål Malermesterforretning
- Ufo-Norge
- United food AS
- Uph tjenester AS
- Ulven tannlegekontor
- Ukbays consulting
- Ulven borettslag
- Ungdomstreffe klubb
- Ulven barnepark
- Ulven eiendom Holding AS
- Ulvenveien 88 i AS
- United Bakeries Consept
- Ulvenhjørnet Steinar Sofiedahl
- Ulven frisør/Sana Khoshnood
- Ulvenveien utvikling AS (Oxer gruppen)
- Ulven bilpleie og vask AS
- UPS Norway AS avd Small Package
- Ulven frukt & tobakk Rolf Larsen