Firma U - Torshov
- Utpust AS
- Udgaarden AS
- Urba AS
- Un-Ri ANS
- Union film AS
- Utsyn industrier AS
- Ungdommens Sjakkforbund
- Ullern Seilforening
- Uni-Fi
- Unni Løvlid
- Ugas transport
- Unima Norge
- Ulf Bjørklid
- Ullerlien Transkribering
- Uplanit Travel technologies AS
- Una Bryn Damsgård
- Underholdningskonsulenten Bjarte Tjøstheim
- Una Bryn Damsgård
- Ulf Anderssons Pianoservice
- Utpust V/Hege S Karlsen
- Uthberg gårdstjeneste og drift
- Undeliverable Goods B. Romstad
- Underground tours Sigmund Aas