D. A. Consortium (DAC) was established in 1996 as a consortium of leading advertising agencies headed by the Hakuhodo DY Group. By combining different specialities and advantages, DAC takes the initiative in the internet advertising market for multi-devices, including PCs, smart-devices and mobiles. It offers various services related to digital advertising as a media representative that trades advertising space in various online media. The company also provides advertising planning, consulting, technology development and operation services.