KT Nasmedia. 

kt nasmedia Co., Ltd. operates as a digital marketing platform company in South Korea. The company offers online and mobile ad services, including display and search ads; digital broadcasting ad services, such as IPTV VOD, real-time channel, Addressable TV, and pre-roll type TV ads; digital out of home ads; and global marketing services. It also provides adpacker, a programmatic DSP based on sophisticated audience targeting; admixer, a global SSP based on global AD exchange and google publisher partner; Nasmedia Ad Platform that Offers personalized reward services using audience targeting technology; AD Tech that offers planning, programmatic buying, analytics, and data management; and AD Study that studies effects of digital media cross platform ad campaigns and advance ad tech platform. In addition, the company offers N.DMP, a big data and AI-based data-driven audience targeting platform; Bid Optimizer, a service for maximizing AdMixer's Ad bid rate with real-time Ad bidding optimization AI model; Auto Traffic Curation for customized advertising traffic; Fraud Detection; and Ad effect research and data-based consulting services. The company was formerly known as Nasmedia Co., Ltd. and changed its name to kt nasmedia Co., Ltd. in April 2025. The company was founded in 2000 and is based in Seoul, South Korea.