Emil Hammer Orgelbau, originally founded in 1838 by Philipp Furtwängler and later continued by Adolf Hammer and his nephew Emil Hammer, was a renowned German organ-building workshop based in Arnum near Hanover. At its peak, the company employed up to 120 workers and built over 2,200 organs worldwide, including some of the most significant instruments of late Romantic organ building. The workshop was recognized for its innovations, such as the introduction of tubular pneumatic and electro-pneumatic action, and played a crucial role in the organ reform movement of the 20th century.

In its later years, the company shifted its focus increasingly toward the restoration and maintenance of historic organs. After Emil Hammer's death, his grandson Christian Eickhoff took over the business but eventually sold it in 2007 due to succession issues to the organ-building company Reichenstein. While Reichenstein initially continued operations, the business was dissolved in 2011 following insolvency. However, the tradition of organ building in the region is maintained by the successor company, E. Hammer Orgelbau, based in Hiddestorf.

https://emil-hammer.de/
https://de.wikipedia.org/wiki/Emil_Hammer_Orgelbau