Plus X Plus X is an experience design and marketing company in South Korea, founded in 2010. Plus X has a connotation of the message that “We Add Experience for Your Brand.” Brand experience design means providing consumers with valuable brand experience through consolidated online and offline designs based on the consistent brand strategy. The company mainly directed design projects of large company in South Korea such as SK telecom, Hyundai card, and Samsung. Plus X focused on integrated experience design, not just a design of one field.