Bedrift J - Tomter
- Jarre AS
- Jernbaronen AS
- Jorunn Solsvik
- Jeanette Kjeksrud AS
- Josef Filtvedt
- John Steen
- John Berger
- Jensen Eiendom
- Jan Gjestang AS
- Johansen Maskin
- Jens Arne Bråte
- Jon Otto Brødholt
- Jacek Andrzej Wuczynski
- J.F. Holding AS
- Janne Synøve Nordhagen
- Jarle Hoff Syversby
- Johnny Kjærstad Transport AS
- Jens Even Ambjørnrud
- JS.Sørby Eiendom AS
- Jawad Mustafa Kadhim
- Jonasz Napieralski Art
- Just-Nielsen Anne-Cathrine