Dresser-Rand is a leading maker of industrial rotating equipment that includes steam and gas turbines, centrifugal and reciprocating compressors, hot gas expanders, and control systems. It makes new and replacement units and offers aftermarket repair and upgrades for its own and third-party products. Dresser-Rand serves customers in the oil and gas, power, and chemical and petrochemical markets through 14 manufacturing and nearly 50 service facilities in about 30 countries. The majority of its sales come from energy infrastructure and oilfield projects. In mid-2015 Dresser-Rand was acquired by electronics and engineering giant Siemens.