Bedrift Z - Torshov
- Zanzibility AS
- Zenith Zum AS
- Zenith Invest AS
- Zenith Real AS
- Zenith Populi AS
- Zenith eiendom AS
- Zenitel Norway AS
- Zwaig Productions
- Zhihua Wang
- Zenith Nadir AS
- Zachariassen Jernvare AS
- Zukunftige Werte AS
- Zwaig Holding AS
- Zhesmin Hasan Racheva
- Zbigniew Marcin Izydorczyk
- Zenitel Norway AS Avd Hovedkontor Oslo
- Zander Schanche Bygg og Tjenester
- Ziab Invest og Trans Ziab Ahmad Abdulkadir