Sega Games Co., Ltd. originally short for Service Games and officially styled as SEGA, is a Japanese game developer and publisher, and one of several third-party developers supporting the Nintendo Switch. Sega's head offices are located in Tokyo. Sega's North American division, Sega of America, is headquartered in Irvine, California, having moved there from San Francisco in 2015. Sega's European division, Sega Europe, is headquartered in London.
They were listed as one of the third-party partners with Nintendo on the Nintendo Switch presentation on 12 January 2017, and released Puyo Puyo Tetris early into the console's lifespan. Sonic Forces and Sonic Mania were also released for the Switch in 2017.