Firma J - Blommenholm
- Jpi AS
- Jumpstarter AS
- Jemoto AS
- Jonatann AS
- Jupiter Properties AS
- Jacek Dziuk
- Jds Invest AS
- Jsal Invest AS
- Jacek Gubala
- Jko Holding AS
- Jaro Gruppen AS
- Josef Ezazi
- Jakob N. Rabe
- Julie Sjøwall Oftedal
- Jacek Eugeniusz Wanczyk
- Jakub Kryzysztof Pawlak
- Johnsen Retail Consulting
- Janne Marie Røising
- Jockey Mette Hanssen
- Jan Ole Norum
- Jo Heine Meyer Faafeng
- J. Monier Cement- og Betongstøperi AS