Garbe, Lahmeyer & Co. (until 1938 also known as: DEW - Deutsche Elektrizitäts-Werke zu Aachen) is a former electrical engineering company in Aachen. The company was founded in 1886 by in Aachen as Deutsche Elektrizitäts-Werke zu Aachen, Garbe, Lahmeyer & Co.. Lahmeyer left the company only a few years later, but the company still used his name. From 1938 the company was known as Garbe, Lahmeyer & Co. (GL). In 1973 GL was taken over by CGEE Alsthom. Production under the GL label stopped around 1993.