Firma U - Nordstrand
- Underworld
- Urias AS
- Ulixes AS
- Unitrade INC
- Usedtolove Da
- Ulrika Håkansson
- Urologisk klinikk AS
- Ulsund Konsult
- Utleiepartner AS avd Oslo
- Ubr scandinavia AS
- Universal Brønnboring AS
- Ulv eiendom AS
- Unn Karlstad Konsult
- Up Front Artists DA
- Ung i Fornybar
- Ung i Fornybar
- Udnesseter Diverse grafisk
- Ukrut Pål Hansen
- Ulf Thoresen Ulstein
- Umeverse By Puntervold
- Ugleunger.Dk V/Mikael Hansen
- ULTRA-Fast Charging scandinavia AS
- Urban Kitchen Andreas Park Jensen Holtet