| Name | Total | ... |
|---|---|---|
| orangelepsy | 1 | GO |
| OrangeMaru | 23 | GO |
| ORCSOFT | 9 | GO |
| Ore Gun | 3 | GO |
| Oregun | 1 | GO |
| Oreichigo | 1 | GO |
| Oremuha X | 1 | GO |
| Orenjiru | 1 | GO |
| Oretachi Misnon Ikka | 17 | GO |
| Oreteki18kin | 1 | GO |
| ORICOMPLEX | 9 | GO |
| Oronamin-Day | 1 | GO |
| Ororiya Enpitsudou | 2 | GO |
| Ortensia | 9 | GO |
| orugouru | 3 | GO |
| orz | 6 | GO |
| OS tokku | 5 | GO |
| Osakana Planet | 1 | GO |
| Osaru no Noumiso | 5 | GO |
| OSHABAN | 1 | GO |
| Oshiruko Kan | 24 | GO |
| Osiris | 1 | GO |
| Osomatsusama | 2 | GO |
| OTA OFFICE | 5 | GO |
| Otabe Dynamites | 25 | GO |
| Otafuku-tei | 1 | GO |
| Otajai | 1 | GO |
| Otaku Beam | 28 | GO |
| OtakuLife Japan | 2 | GO |
| OTAUT-R | 1 | GO |
| Otentomaru | 6 | GO |
| Othello Ice | 18 | GO |
| OTO | 1 | GO |
| Otogi no Kuni no Soapland | 9 | GO |
| OTOGIYA X-9 | 2 | GO |
| Otokodama | 1 | GO |