Piller is a wholly-owned subsidiary of Langley Holdings, a multi-disciplined global engineering group in the United Kingdom. Piller produces high capacity dynamic and static uninterruptible power supply (UPS) and converter systems. The company also produces energy storage equipment, aircraft ground power systems, naval power systems and static transfer switches. Piller provides mission critical power solutions to clients in banking and financial institutions, telecommunications networks, broadcasting facilities, health care centers, airport and traffic control towers, computer data centers and a variety of other production facilities. Additionally, Piller converters and related products are widespread in military and civil applications. Piller also provides services, such as installation, predictive analysis, emergency call-out, spare parts, planned maintenance, training and system monitoring.