Co-founder / CEO

Shuta Shibuya

Born in Niigata in 1988. After working in marketing for GREE, Inc., Shuta founded Fuller, Inc. in 2011. He is recognized as a young and prominent entrepreneur. Forbes selected him for the "30 Under 30 Asia" in 2016.


Hiroki Sakurai

Born in Niigata in 1989. Graduate of Chiba University and former national ice hockey player. Hiroki joined Fuller in 2012 and was appointed as co-representative director and COO in 2016.

Co-founder / CFO

Yuichi Nagai

Born in Hokkaido in 1985. Tsukuba University graduate and Fuller's CFO. After developing an automated stock trading system, Yuichi founded Fuller, Inc. together with Shibuya and Fujiwara in 2011. He has overseen all funding rounds so far.

Co-founder / CTO

Takahiro Fujiwara

Born in Hokkaido in 1986. Former engineer at Hitachi, CTO and co-founder of Fuller. Fujiwara is an experienced developer and frequent speaker at tech conferences.


Masashi Yamazaki

Born in 1988 in Niigata. Chiba University graduate and CDO (Chief Design Officer) of Fuller. Masashi worked at Fujitsu as UI designer. He won the iF DESIGN AWARD in 2015.