Aisin Seiki Co., Ltd. (アイシン精機株式会社 Aishin Seiki Kabushiki Kaisha?), also known as Aisin, is a Japanesecorporation which develops and produces components and systems for the automotive industry. Aisin is a Fortune Global 500 company, ranked 442 on the 2015 rankings.
Aisin Seiki was founded in 1949 and currently supplies engine, drivetrain, body and chassis, aftermarket, and other main automotive parts for various major OEMs. In addition to partaking in the automotive markets, Aisin also offers life & amenity products (e.g. furniture and sewing machines), energy systems, welfare products, and other products/services.