Markus Rehm was born in Villingen and studied electronics and control engineering at the Furtwangen University of Applied Sciences from 1986 to 1990. He then worked until 1998 in Thomson Brandt's research and development laboratory with the electronic optimization of TV sets and video recorders. Markus Rehm has been self-employed since the laboratory in Villingen was closed. He had his former professor commit him to a research contract for two years and, upon completion, concluded that "power electronics engineers were not needed on the market, everyone wanted software experts." So he founded his own company, the engineering office Rehm, and gained a wide range of regular customers with his specialist knowledge.