Bedrift O - Kjeller

• Omeragic
• Oncogene AS
• Oddvar Hagen
• Osa Agenturer
• Ola Aamodt
• Oseberg Capital AS
• Oslo Liftutleie
• Oks Eiendom AS
• Otman Orders
• Otman Transport AS
• Oks friskole
• Oslo Flyveklubb
• Oks Friskole
• Oslotak Edgaras Zvinys
• Omar Ørn Jonasson Enk
• Oslo Tømrer Ghorbani
• Odd Normann Holding AS
• Ola Kristian Helleså
• O-Con - Otnes Consulting
• Oslomet - Storbyuniversitetet Studiested Kjeller
• Oslo Kristne Senter (OKS)
• Out for A Hero Holding AS