Shigeru Yamazaki

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.

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.

Coinage, Inc. engages in virtual currency business. It offers digital currency trading services. The company was founded by Ryohei Yamazaki on October 16, 2017 and is headquartered in Tokyo, Japan.

Interride, Inc. provides advertising services. It provides mobile marketing services including services for development and offer of mobile media, mobile advertisement services, mobile media representation, and mobile commerce to provide Internet marketing for mobile phones. The company is headquartered in Tokyo, Japan.