Architects Wannenmacher + Möller GmbH, based in Bielefeld Germany, has been in practice for almost 60 years. Today the office is run by second generation Andreas Wannenmacher and Hans-Heinrich Möller. It was founded by Gregor Wannenmacher in Düsseldorf, Germany in 1955. Over the years the office grew continuously and became one of the largest architectural firms in the German region Eastern Westfalia. Most of the activities were focused in this region. During the last years, however, the office had the opportunity to design buildings and control their realization outside this region, some of them in foreign countries throughout Europe, Asia, and the USA.