Bedrift O - Moelv
- Ovun AS
- Ordfryd AS
- Omn Holding AS
- Onio Holding AS
- Olav Levernes
- Oleksandr Zahorovskyi
- Olena Subbotnytska
- Onitio Norge AS
- Ole Fossen
- Otto Lome
- Ove Solvang
- Ole Grønvold
- Ola Nerhagen
- Onj Holding AS
- Olaug Karin Øistad
- Ove-S Holding AS
- Ole Kaare Lunde
- Ole Lasse Fossen
- Otterstad Bjørn Willy
- Odd Gude Dambuen
- Ola Torvald Gjestvang
- Oris Dental Moelv
- Ole Kristian Barli
- O. Johansen Trevarefabrikk AS
- O.L. Engen AS
- Olas Bemanning Stensrud Pedersen
- Og Kroppspleie AS Fixme Hud
- Opplæringskontoret for Hotell og Restaurantfag Hedmark/Oppland