The firm Hugo Mayer Orgelbau, located in Heusweiler, Saarland, specializes in organ building and restoration, operating in its third generation. Founded in 1952 by Hugo Mayer in Brebach and relocated to Heusweiler in 1957, the company has a rich history of craftsmanship. Hugo Mayer, after completing his apprenticeship and experiencing interruptions due to military service and Soviet captivity, earned his master certification in 1948 and initially worked for E. F. Walcker before establishing his own business. His son, Gerd Mayer, joined the workshop in 1957, becoming a master organ builder in 1966 and later taking over the business in 1974. Gerd was recognized as a restorer in organ building in 2001. The third generation, represented by Stephan Mayer, joined in 1989, bringing CAD design technology into the company and leading the new construction department after his master certification in 1996.

Hugo Mayer Orgelbau has seen significant evolution in their instruments' design and sound since its inception. Initially focusing on electropneumatic cone chests and zinc free pipe facades, the company transitioned to mechanical slider chests in the 1960s. The 1970s saw a shift away from copper pipes, with typical organ designs featuring prominent central main works and flanking pedal towers. The 1980s reintroduced copper pipes, now with flamed finishes, and developed distinctive decorative patterns. The 1990s and early 2000s continued this trend, producing notable symphonic instruments and embracing modern aesthetic and functional designs, including unconventional concepts like the Multiplex principle. Despite these innovations, Hugo Mayer Orgelbau has consistently produced instruments with fully electric actions throughout its history.

https://de.wikipedia.org/wiki/Hugo_Mayer_Orgelbau