Groups
- a.s.g group 7
- abikyoukan 7
- abuhachi ramentei 7
- aburi-don 7
- acacia 7
- accel plus 7
- aerial 7
- ah. 7
- ai no sunatokei 7
- aiai 7
- ajala 7
- aka-miso 7
- akabekomonster 7
- akagisou 7
- akairo kurena 7
- albercorp. 7
- albino games 7
- alco 7
- alibiland 7
- alice anciel 7
- alice no ribbon 7
- alpa 7
- alpha-beta 7
- alps no yama 7
- am644 7
- amakuchi water 7
- amakuro okami 7
- amanojaku 7
- amazonias 7
- ameagari after school 7
- amemiya 7
- amuricha 7
- an-soft 7
- analog e.c. 7
- analogoat 7
- analyst freedom 7
- ananwanco 7
- angel strike 7
- anmitsuya 7
- anxious delusionist 7
- anzen ekisu 7
- anzeri kai 7
- aogoushitsu 7
- aoi sakana 2 7
- aoi sena 7
- aoiya 7
- aokagumi 7
- aoki-tan 7
- aozora no mieru chikashitsu 7
- aqnos 7