Studios
- OFFICE K’S VR 1
- OFFICEK'S 2
- OK-WAVE 1
- ONE MORE 61
- ONEGENERATION 7
- ONEMORE 95
- ONETIME 325
- OPPAI 1465
- OTflash 2
- OUTDOOR 4
- P-BOX VR 134
- P-MAN 2
- P-PROJECT/妄想族 4
- P-WIFE 46
- P.K.C 6
- P☆MAX 3
- Pandora 30
- PAV 1
- Pazzo（フェチ）/妄想族 10
- PEATUBE 4
- PETSHOP/妄想族 44
- PIG ROOM 1
- PileDriver 26
- PileDriverZ 5
- PinkyRush 18
- PIO 2
- pistil 14
- Platinum 7
- PM Entertainment 70
- PRIMEWAY 5
- private mask/妄想族 8
- ProjectDiamond 1
- PS/妄想族 4
- PSYCHEDELICPUPPET 15
- P活おいたん 17
- Q-fairy 2
- QBQ 1
- QH映像 5
- Queen8 23
- R・I・P 2