Ralph D. Page; Advanced Design Pipe Organs of Willow Grove, PA
French Builder, most of whose work is in Japan. His sons Matthieu and Boris have taken over and relocated to Japan, where they are actively building and maintaining.
Markham, Ontario, Canada. Created 1990 by the merger of Artisan Organ Ltd. and The Classic Organ Company Ltd. (1976). Designs, builds, and sells electronic components for classical organs.
Philadelphia, Pennsylvania, 1864. Henry Wilkinson Knauff, Jr. (1835, Philadelphia:Germantown - 1921, Minnesota)
St. Paul, Minnesota, 1970s to at least 2017.
Philip A. Larson, Spokane, Washington 1990s; Monroe, Washington ca. 1998--->
Columbia, Pennsylvania, from Nov., 1987 to March 1993; Philadelphia, Pennsylvania, March 1993 - present.
Owned by Ruby W. Wallin(d. 2015), operated by son Donald G. Wallin until his death (2012).
39 Old Mine Rd, Kerhonkson, NY. 12446
(active until at least 2004)