Bedrift O - Kolsås

• Oval AS
• Os Helse
• Otterstig Handel AS
• Ola Andrè Svendsen
• Optima Growth Partners AS
• Os Mikkel Treu
• Oslo Endodontic Study Group
• Ox Consulting Dennis Oxaas
• Optimum Spesialhund V/Erik Elgmork
• O. P. Risøe Eiendom AS
• Olsen Stein Viggen Ark Kont