Groups
- anarcomix 4
- anata wa onaka ga suiteiru 4
- andamariron 4
- andrew no monooki 4
- angel 14 4
- angelicas garden 4
- anihero tei 4
- animachine 4
- ankake cha-han 4
- anko load 4
- ankoromochi 4
- anmin koutou benmukan jimusho 4
- another emotion 4
- antidying 4
- antithese 4
- anzen na buffalo 4
- ao niwashi 4
- aoaa 4
- aokumashii 4
- aosuke no circle 4
- aqua-fang 4
- aquadriver 4
- aquastripes 4
- arafuradou 4
- arca 4
- area-048 4
- ariel soft 4
- arrow island 4
- artemisia 4
- artra 4
- arts graffiti 4
- asagayatei 4
- asairo milktea 4
- asaka sangyou 4
- asakanaya 4
- ascii 4
- ashtray 4
- asia no hiraki 4
- asma 4
- asnaronyoichi 4
- assault machine gun 4
- ast 4
- asterisk 4
- astllatte 4
- astromaker 4
- asuhikou 4
- at boin 4
- at mark 4
- atelier comet 4
- atelier lepus 4