Shueisha Inc. (株式会社集英社, Kabushiki gaisha Shūei-sha) is a Japanese company headquartered in Chiyoda, Tokyo, Japan. Shueisha is the largest publishing company in Japan. It was established in 1925 as the entertainment-related publishing division of Japanese publisher Shogakukan. The following year, Shueisha became a separate, independent company. Manga magazines published by Shueisha include the Jump magazine line, which includes shonen magazines Weekly Shōnen Jump, Jump SQ, and V Jump, and seinen magazines Weekly Young Jump, Grand Jump and Ultra Jump, and the online magazine Shōnen Jump+. They also publish other magazines, including Non-no. Shueisha, along with Shogakukan, owns Viz Media, which publishes manga from all three companies in North America. Source: Wikipedia (en)