SBF AG, through its subsidiary, SBF Spezialleuchten GmbH, engages in the development, manufacture, and distribution of ceiling and lighting systems for indoor and outdoor rail vehicles. The company primarily serves rail vehicle manufacturers. It also provides interior and exterior lighting, as well as ceiling systems for trams, underground and suburban trains, regional trains, and high-speed trains. The company was founded in 1862 and is headquartered in Leipzig, Germany. SBF AG is a subsidiary of ELBER GmbH.