Groups
- nisusu 10
- nita ken 16
- nita-kane 2
- nitakaya 3
- nitaroutei 7
- nitch no sacchi 1
- nitiniti sowa 47
- nitoroame 1
- nitro 7
- nitro garage works 8
- nitro koutetsu 1
- nitrogumi 1
- nitroplus 122
- nitroplus chiral 8
- niutaipu 4
- niw. 1
- niwa 3
- niwakakamikiriyamodoki 13
- niwakei 1
- niwanihaniwa 6
- niwatari jichiryou 1
- niwatoko 3
- niwatori 12
- niwatori sennin 14
- niwatori to tamago 3
- niwatori-ya 3
- niwatoritamashi 5
- niwatoritowani 17
- niyapuri 3
- niyatto company 2
- niyodo blue 3
- nizeru 3
- nizhegg 1
- nizimu 2
- niziro 3
- niziryu dark side 4
- niziyumedokoro 44
- nizyuugokuhiya 4
- nja recycleya 2
- nkds 1
- nlt media 2
- nmadchen 10
- nmd 1
- nmhm 3
- nmou futon 3
- nmtk 12
- nna timun 41
- nnl 25
- nnm 1
- nnn 8