Aisin Seiki Co., Ltd., commonly known as Aisin, is a Japanese automotive parts manufacturer founded in 1949 and headquartered in Anjo, Aichi Prefecture. Originally established to supply repair parts for Toyota Motor Corporation, Aisin has grown into one of the world’s largest Tier-1 suppliers, delivering a broad portfolio of components to leading original equipment manufacturers (OEMs) across the globe.
The company’s core business centers on the design and production of automotive systems and components. Key product lines include powertrain products such as transmissions and drive‐train modules, braking systems, chassis and body components, engine management systems, and thermal systems including radiators and air‐conditioning units. Aisin also develops advanced technologies in hybrid and electric vehicle applications, such as electric water pumps and motor control units.
Beyond mobility, Aisin has diversified into non‐automotive areas through its Smartlife segment, offering home and building solutions ranging from kitchen systems and sanitary fixtures to building automation devices. The company is also active in the electronics sector, manufacturing semiconductors and control units used in vehicles and industrial equipment, as well as precision plastic and metal components for a variety of markets.
Aisin operates an extensive global footprint, with manufacturing and R&D facilities across Asia, Europe, North America, and South America. Its products serve many of the world’s major automakers, leveraging a network of strategic partnerships and joint ventures to support localized production and engineering. Aisin’s management emphasis on quality, innovation and environmental sustainability underpins its long‐term strategy in the evolving automotive and industrial landscape.
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