From the OHS PC Database, derived from A Guide to North America Organ Builders by David H. Fox (Organ Historical Society, 1991). -- Established by Hellmuth Wolff in Laval, PQ, Canada, 1968; active in 2014. Builder of mechanical action instruments.

Staff (1995): Frannois Beauchemin; Gerhardt Biller; Frannois Couture; Simon Cyr; Robert Dion; Jean Duttin; Gérald Gingras; Susanne Giroux; Andres Hermann; Denis Juget; Michael Laram,e; James W. Louder; Bernard Nonnon; Bertrand Perrier; Karl J. Raudsepp; Étienne Rivest; Dieter Rufenecht; Robert Syvestre; Lucie Tremblay; Martin Wolff.