Shunsuke Konno

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.

IREP Co., Ltd. engages in the digital marketing business. Its services include paid listing, search engine marketing (SEM), mobile SEM, web analytics, and internet advertising. The company was founded by Masayuki Takayama in November 1997 and is headquartered in Tokyo, Japan.

YAMASHITA, LTD. engages in welfare equipment rental and sales business. It also offers hotel and hospital linen supplies. The company was founded on March 6, 1963 and is headquartered in Shimada, Japan.

Part of Hakuhodo DY Holdings, Inc., Relevancy-Plus, Inc. is a Japanese company that provides online advertising services. The private company is based in Tokyo, Japan. Relevancy-Plus was acquired by IREP Co., Ltd., a subsidiary of Hakuhodo DY Holdings, Inc. from Hakuhodo DY Holdings, Inc. on January 01, 2011 for $1.04 million.

D.A. Consortium Holdings, Inc. operates as a holding company that engages in the management of its subsidiaries operating online advertising and related businesses. It operates through the following business segments: Internet-related and Investment. The Internet-related segment handles the Internet advertising business and solutions business supporting in enterprise marketing. The Investment segment covers venture capital investments. The company was founded on October 3, 2016 and is headquartered in Tokyo, Japan.

News2u Holdings, Inc. operates as a holding company. It offers online press release comfacts service. The firm creates various websites and owned-media in which companies spread their company news and press release. The company was founded on March 22, 2001 and is headquartered in Tokya, Japan.