Katalog wytwórni
- O & O
- O Brother
- O Genesis
- O Music
- O Plus
- O Twenty Records
- O-Ton
- O-Town
- O. Gudmundsen Minde
- O.A.P Records
- O.B.S.E.
- O.L.D
- O.O.C Records
- O'Bannon Records Inc.
- O'dike Records
- O'Dike Records
- O'Disc
- O2
- Oa
- Oa2
- Oak
- Oak Island Records
- Oaken Palace
- Oaken Shield
- Oap Records
- Oar
- Oarfin
- Oba Prod.
- Obc
- Obe
- Obeah Records
- Oberon
- Oberon Books Ltd
- Obese
- Obese Distributed
- Obey Your Brain
- Obi Music
- Obj-A
- Object Enterprise
- Object of Desire
- Objects
- Objektivity
- Objet-A Records
- Oblik
- Oblio
- Obliq Sounds
- Oblique
- Obliteration
- Oblivion
- Oblong
- Oboe Classics
- Obonit
- Obsculta
- Obscura
- Obscure Alterna
- Obscurists Pres
- Observer
- Obsession
- Obsession Benelux
- Obsessions
- Obsessive
- Obsidian
- Obsidienne
- Obzaki
- Ocarina
- Occii
- Occulatio
- Occultation
- Occupation
- Occupy Your Mind
- Ocean
- Ocean Drive
- Ocean Moon
- Ocean Music
- Ocean of Tears
- Ocean Omen
- Ocean Park
- Ocean Rain
- Ocean Road
- Ocean Street
- Ocean Temple
- Ocean Wave
- Ocean Wisdom
- Oceane Production
- Oceanic
- Oceano Music
- Ocete
- Ocha
- Ocho
- Ocho Mule
- Ochre Records Dist. By Sr
- Ocium
- Ock Music
- Ocl Music
- Ocom
- Ocora
- Octant Musique
- Octatonic
- Octave
- Octave 8