Bedrift J - Os
- Juridium AS
- Jan2 AS
- Jinert AS
- Jintec AS
- Jobbfront AS
- Jensen Cato
- Jevgenijs G AS
- Jordmorsvingen 4 AS
- Jysk Os
- Janne Skaathun
- Jv8 Holding AS
- Jkg Service AS
- Jkg Utleie AS
- Jøssang Media
- Jj Murflis AS
- Jernia Sælen
- Joachim Gill AS
- Janis Januls
- Jansen Industriteknikk
- Jarle Holstad
- Javino Invest AS
- Jostein Sælen
- Jeda Holding AS
- Jan Haukeland AS
- Johnsen Corp
- Jomo Fordyr AS
- Jsd Invest AS
- Johannes Ravnskog
- Jøran Waldeland
- Jari Holding AS
- Jon Haaland
- Jarle Pedersen
- Jon Hægland
- Joan Transport AS
- J. Hellesund
- Jho Eiendom AS
- Jan Peters
- Jonatan Brekke
- Jadakameratene Il
- Jitmo Holding AS
- Jakob Haugen Dødsbo
- Jkg 24 Holding AS
- John Hauge Media
- Jan Erik Aase
- Jon Søfteland Sæbø
- John Arve Halhjem AS
- Jonas Nordvik Dale
- Jazz Frå Os
- Jonas Bratlund-Mæland
- Jolted Transmissions Dean
- Jan Rune Sund
- J.O Bolstad
- JT Grindheim Invest AS
- Jan Magnus Haaland
- Jørgen Roberg Nielsen
- J-H Hetleflåt AS
- Johan Bøe Tømmerbakke
- Jan Helge Halleraker
- Jaran Gustavsen Ff Consult
- Jon Søfteland Sæbø Jordbruk
- Johansen Pt og Helse
- John Sælen & Sønn AS
- Jørgensen Sau og Søm
- Jho Maskin og Transport AS
- Johs Sælen & Sønn Eiendomselskap AS
- J Lyssand Service Jarle Lyssand
- Just Elektronikk & Data Erik Just Olsen