Groups
- ak-studio 1
- aka chouchin entertainment 1
- aka lamp 1
- aka yomogi 1
- akabei soft2 try 1
- akaboshi 1
- akagumotei 1
- akahon 1
- akahorogumi 1
- akai buta no shippo 1
- akai inugoya 1
- akainaniruka 1
- akamegane-banchou 1
- akanai hijouguchi 1
- akane no fune 1
- akane soft 1
- akanenone 1
- akaneya gu-tara ten 1
- akanka 1
- akasaka allstars 1
- akatomi 1
- akatonbo 1
- akatsuki mistral 1
- akatsuki seisakusho 1
- akatsuki zen 1
- akayakudou 1
- akayami 1
- akebono starry 1
- akecha dame neko no hako 1
- aki beya 1
- aki-shibu project 1
- aki8 1
- akiakane 1
- akichi de gohan 1
- akihara 1
- akiman shuppanbu 1
- akimi ero works 1
- akimoto yumi 1
- akisame moyashi 1
- akisyuuno 1
- akiyaakira 1
- akonako 1
- akousoku engine 1
- aku nikka 1
- aku no onshitsu 1
- akumeshi 1
- akumu no kuni no shoujo 1
- akuochi melon 1
- akuroshuka 1
- akutodou honpo 1