Ryuji Yokoyama

ADK Holdings, Inc. engages in the provision of media and communications services. It offers advertising, content planning & production, sales promotions, marketing, and public relations services in various media that includes magazines, newspapers, television, radio, digital media, and out-of-home media services. The company was founded by Masao Inagaki on March 19, 1956 and is headquartered in Tokyo, Japan.

D. A. Consortium, Inc. engages in online media transaction related business. It purchases and sells advertising space; and provides diversified advertising service and content marketing. The company was founded on December 2, 1996 and is headquartered in Tokyo, Japan.

Part of ADK Holdings, Inc., ADK Interactive, Inc. engages in advertising agent services. The company is based in Tokyo, Japan. ADK Interactive was acquired by ADK Holdings, Inc. from Hakuhodo DY Holdings, Inc.

Best In Class Producers Inc. was founded in 2014 and is a digital marketing and Japanese communication company that aims to be the highest quality marketing producer. The private company is based in Tokyo, Japan. The company optimize building and maximize performance as a one-partner solution for their clients.

Digital Intelligence, Inc. is a digital marketing consulting private company based in Tokyo, Japan. Digital Intelligence, Inc. provides digital marketing consulting services. The Japanese company was founded in 2009 and is led by CEO Yoshitaka Tomura.

TATEITO, Inc. engages in the management of learning platform RUUUN. It provides video production services specialized for education and consultations related to education and training. The company was founded on July 4, 2012 and is headquartered in Tokyo, Japan.