Bedrift J - Vormsund
- Jacage AS
- Jansrud Transport
- Jellum Erling
- Joint Biomed AS
- Jips Holding AS
- Jan Frøystad
- Johnsen Tore
- Jacage Eierskap AS
- Jan Eivind Engen
- Jan Erik Israelsen
- Johan Fredrik Thesen
- Jorun Byboth Elvhaug
- J K Alstad
- Jens Kristian Nyerrød
- Julie Ruud-Røhne AS
- Johnny Sætre Holding AS
- Jens Kristian Wexels Riser
- Jk-Production. Jørgen Kjorstadmoen