Hiroki Teshima

Part of Hakuhodo DY Holdings, Inc., International Sports & Marketing Co. Ltd. is a Japanese company that provides Internet sports information services. The company is based in Tokyo, Japan. International Sports & Marketing Co. was acquired by SPiRE, Inc. (Japan) from CyberAgent, Inc. on March 30, 2010 for $0.01 million.

XTech Ventures, Inc. (XTech Ventures) is an Independent Venture Capital firm founded in 2018 by Shinichi Saijo and Hiroki Teshima, with its headquartered in Tokyo.

Cluster, Inc. engages in the provision of software services. The company was founded by Hiroki Tanaka and Naoto Kato and is headquartered in Tokyo, Japan.

SPiRE, Inc. (Japan) engages in mobile advertising, media, and electronic commerce businesses. It operates through the Mobile Advertising and Media segments. The Mobile Advertising segment offers mobile media representative and mobile advertising agency services. The Media segment provides mail and content, marketing promotion, internet research, and smartphone application development services. The company was founded on October 6, 1997 and is headquartered in Tokyo, Japan.