The Workshop Family
The workshop Klais is home to a staff of app. 60 dedicated craftsmen
Here the key personnel of the workshop:
Philipp C A Klais
Managing Director, see 'Impetus to Organ Building'
Johannes Zurnieden
Managing Director
Hans-Gerd Klais
see 'Impetus to Organ Building'
Markus Bendel
Organbuilder, businessman for industries, staff member since September 1980
Heinz Bergheim
Carpenter, head of installation team, head of the casework carpenters' shop, staff member since 1977
Markus Burghof
Organbuilder, head of installation team, staff member since September 2005
Gesa Graumann
Organbuilder, designer, organist, staff member since September 1994
Heinz-Günther Habbig
Organbuilder, Workshop Manager, organist, voicer, trained in France, head of reed pipe department, staff member since September 1980
Thomas von Heymann
Carpenter, head of installation team, staff member since September 1981
Stefan Hilgendorf
Master organbuilder, draughtsman, staff member since April 2000
Horst Hoffmann
Organbuilder, head of metal pipe workshop, staff member since Mai 1998
Christoph Kleemann
Master organbuilder, voicer, staff member since January 2015
Markus Linden
Organbuilder, voicer with concert hall experience, staff member since September 1992
Wassilij Menges
Organbuilder, engineer, designer, staff member 2012 through 2017 and since 2024
Josef Meuser
Organbuilder, designer, staff member since July 2016
Stephan Rau
Organbuilder, head of installation team, staff member since September 2007
Bernd Reinartz
Organbuilder, voicer, staff member since January 2013
Frank Retterath
Organbuilder, voicer, organist, staff member since September 1999
Andreas Saage
Organbuilder, Tonal Director, voicer, organist, staff member since January 2013
Dimitri Stein
Carpenter, designer, CNC expert, instructor, staff member since 2015
Matthias Wagner
Organbuilder, voicer, head of restoration department, staff member since March 2021
Jakob Wieser
Organbuilder, business administrator, voicer, staff member 2014-2019 and since 2025