uuum
Uuum Co., Ltd. is a Japanese multi-channel network and YouTuber-related label company headquartered in Minato, Tokyo, Japan. As of April 2020, there are over 10,000 YouTube channels belonging to Uuum, the most famous including HIKAKIN, Hajime Syacho, Tokai On Air, Fischer's, Yuka Kinoshita, and Mizutamari Bond.