Piller Power Systems, headquartered in Osterode, near Hanover in Germany, is Europe’s leading producer of uninterruptible power supply (UPS) and back-up systems for high end data centres. Piller systems support the global banking & finance community, broadcasters, telecommunication networks, healthcare and other sectors operating mission critical electrical systems. Piller also produces ground power systems for civil and military airports and on-board electrical systems for surface and submarine naval military applications. Modern manufacturing facilities at Piller's Osterode headquarters near Hanover and state-of-the-art, purpose-built assembly and testing facilities at nearby Bilshausen, are generally regarded as the most comprehensive of their kind and Piller is widely acknowledged as the outright leader in the field of high-end power protection. The company was established in 1909 by Anton Piller and remained in the ownership of the Piller family until 1993, when it was acquired by the German utility, RWE AG. Piller became part of the Langley group in 2004.