Makoto Takahashi

JCOM Co., Ltd. engages in the management and operation of cable television (CATV) and telecommunications business. It also deals with the planning, production, and theatrical distribution of films and visual content; distribution of video-on-demand contents; and provision of programs for CATV operators and digital satellite broadcasters. The company was founded on January 18, 1995 and is headquartered in Tokyo, Japan.

Japan Cablenet Ltd. operates and manages cable television networks. Its services encompass digital broadcasting, internet connection services, JCNET.ISP service, cable television advertising, and broadcast equipment retail. The firm also offers wired and wireless telephone communications services, earthquake early warning, and mail magazines. The company was founded on March 22, 2001 and is headquartered in Tokyo, Japan.

Supership Holdings Co., Ltd. manages its group of companies that engage in digital and information technology (IT) businesses. It creates the group business strategy and policy and handles the general corporate affairs. The company was founded on October 1, 2014 and is headquartered in Tokyo, Japan.

GSM Association functions as a association representing interest of mobile operators. It offers programs and advocacy initiatives including future networks, identity, and internet of things, industry purpose, mobile for development, spectrum and the mobile economy. The company was founded in 1982 and is headquartered in London, the United Kingdom.