Groups
- inumog 20
- inunabe 3
- inuneko kouhukuron 1
- inunekotei 2
- inusuku 10
- inuteikoku 215
- inuya 2
- inuyamakagashi 3
- inuyoukan 30
- inuzakipan 3
- inuzini 2
- inuzuka clinic 16
- inverse game 2
- invide 1
- invitation 4
- invitro 1
- invoice 6
- invulnerability 3
- inym 13
- inyou club 6
- inyu-goya 70
- inzei seikatsu 2
- io lite 8
- ion do 1
- ion pastel 2
- ionosphere 11
- ioom 2
- ioriam 1
- iorigumi 52
- iota 4
- iota works 11
- ioteact 3
- iouke no shokutaku 2
- ip 71
- ipheion 1
- ippan hogo reigai 8
- ippan seijin 3
- ippatsu shooter 22
- ippatsutei 3
- ippeisotsu 38
- ippo mae e 36
- ippongui 59
- ippukukan 1
- ipro back dancers 2
- iq engine 1
- iq3000 5
- iqxxx 8
- ir studio 33
- irakoozu 2
- iranshiki 2