Rebase,Inc. engages in the development and operation of an online marketplace, instabase, used for matching open rooms to users in an hourly or daily basis. It allows users to make a reservation of rental meeting rooms, seminar venues, party rooms, rental kitchens, rental studios, rental salons, photography studios, pop-up stores, sports facilities, exhibition halls, music studios, and theaters all over Japan through a computer or a smartphone. The company was founded by Kei Sato and Yuji Takabatake on April 8, 2014 and is headquartered in Tokyo, Japan.