I though that for many musicians who wants to sell their music using UTAU can have a hard time to ask a permission to use an UTAU (a voice and possibly a character too) for commercial use especially if the author is no longer around UTAU community and inactive. So, I thought that why not make a list such of UTAU that can be used for commercial use. Important Notes: Please understand that doujin=/=commercial. (In Japanese: commercial usage=商用利用; doujin=同人) I only will list UTAU that ToS CLEARLY states that you’re not required to have permission from the Author of VB to use their voice (and possibly character) for commercial usage. I will not list UTAU that allows Doujin only or if their ToS stays that “permission is required”. Obviously, I will not list UTAU that prohibits commercial usage or those UTAU that lacks official ToS. I will also list UTAU that can be used for commercial usage with a purchase of a license. Please read carefully what a purchased license includes (and what not) from the UTAU's home page. READ ALWAYS EACH UTAU’S VB TERMS OF SERVICE (利用規約) CAREFULLY BEFORE USING THEM! ToS can change over time and I have no time to check 24/7 if there are any changes their ToS or not, so, please, do read ToS before start to use the VB. Using voicebank for commercial usage is allowed, but using character is prohibited/with permission only or usage of character is unknown. Akihana/秋花 Nota bene: Notifying of commercial usage is recommended. Hinanogi Maya/雛乃木まや Nota bene: ToS is in Japanese only. Iwata Tarou/岩田太郎 Hitsuboku Kumi/筆墨クミ Kieg Matsuo Sora/松岡空 Nota bene: For using the character in merchandise special permission is needed. Mizune Kiaru/水音キャル Nota bene: Notifying of commercial usage is recommended. Sōhō/ソーホー Nota bene: ToS is in Japanese only. This VB will be discontinued in 2017 August 7. Yumeiro Hasaki/夢色刃先 Yumeiro Theory/夢色Theory Using voicebank and character are both allowed for commercial usage Kyou Hana/強ハナ/강하나 Sakasa Shiki/逆さ 指揮 Takoe Zuii/多声ズイー Type A Yamatouchi Iori/大和内庵 Nota bene: ToS is in Japanese only. Commercial usage is allowed after purchasing a commercial license Kikyuune family - After purchasing a license, it's possible to use Kikyuune Aiko/Akio, Akiko, Akihiko and Fuusenne for commercial use. Prism Sonata/ソナタ Studio Ogien's UTAU - After purchasing a license, it's possible to use Kasai OG01, Axis OG36, Atlas OG37 and Apollo OG73's voice for commercial usage. This post was last time checked/edited on 12 June 2017.