The factory was established in 1952 in Vilvoorde city not far from Brussels as a small manufacture of electric pump repair and service. In 1959 the production of machines and automation aids of special-purpose use was launched. Later the company was called STERN Armaturen und Maschinen GMBH.
Nowadays STERN AuM has its own production of high-accuracy equipment, automobile modules and details in Austria and Brussels as well as its own production of high-quality valves and fittings in China. STERN AuM producers over 10 000 types of items and technologies, aimed at factory integration in such fields as space, pharmaceutical, chemical and petrochemical, food industries and constructional engineering.