Carta Holdings, Inc. engages in the business of online commerce, media, advertising, research, and mobile services. The company is headquartered in Minato-Ku, Tokyo-To and currently employs 1,242 full-time employees. The company went IPO on 2014-07-02. The firm operates through three business segments. The Marketing Solution segment is engaged in the sale of advertising products and the provision of solutions, focusing on media communications. The Ad Platform segment is engaged in the operation of performance advertising platforms including Zucks, an ad platform for performance advertisers; PORTO, an ad platform for brand advertisers; fluct, an ad platform for media; and TELECY, a programmatic television commercial message (CM) platform. The Consumer segment consists of the planning and operation of own medias, new businesses in the human resources (HR) and electronic commerce (EC) fields, game publishing business, which carries out domestic marketing promotion of foreign game titles, the operation of game strategy information medias, and the investment in venture companies.