Robert-Morton, Van Nuys California, 1917-1929.
Valley Springs, South Dakota from 1972.
Warsaw, New York, 1915-1932.
New Market, Tennessee, from 1991.
Columbus, Ohio, 1932-1981.
Dallas, Texas 1965-68, at Aeolian-Skinner 69-72. reestablished in Garland TX 1974
Boston, Massachusetts 1901-1906; Cambridge, Massachusetts, 1906-1908.
Boston, Massachusetts, 1958–1963; New York City, New York 1965–1980s; Charlotte, North Carolina 1980s; Monroe, North Carolina from 1992-2015.
Successor to E. R. Kilgen, St. Louis, Missouri, 1939-1960
Royal Oak, Michigan; Successor to A. James Aebel & Sons.
Kansas City, Kansas 1938-85; Walnut Creek, California, by 1989.
Lake City, Iowa, from 1974.
Louisville, Kentucky, 1884–1944.
New York, New York, 1872-1886.
Highland, Illinois from 1906.
Established 1959; Harrisville, New Hampshire, 1964.
Newton, Massachusetts, from 1972.
New Haven, Connecticut, from 1950s.
Boston, Massachusetts, 1847-1850; Reading, Massachusetts, 1850-1872.
Deerfield, New Hampshire 1976-1998.
Milwaukee, Wisconsin 1886-1914.
Hamburg, Germany, 1949–1976.
New York City, 1859; Mount Vernon, NY in 1928; Yonkers, New York from 1940s until 1985.
Milwaukee, Wisconsin, 1924–1942.
Detroit, Michigan, 1874-1910; 1912-1917.
England, since 1828; American subsidiary in Worcester, Massachusetts, 1986.
Saint-Hyacinthe, Québec, Canada, after 1994.
Charlotte, North Carolina, 1968; and Sun Prairie, Wisconsin, 1989.
Jefferson City, Tennessee, from 1967.
Boston, Massachusetts 1827-1872; succeeded by E. & G. G. Hook & Hastings.
District of Columbia, Maryland, and Virginia from 1915.
Rock Island, Illinois, 1908-ca.1927.
Baltimore, Maryland, from 1950s to 1990s.
Sainte-Rosalie, Quebec, Canada 1979; Saint-Hyacinthe, Quebec, Canada, from 1988.
New York City, New York, 1886-1893.
Lincoln, Nebraska, 1969-Present.
Los Angeles, 1894-1913.
Schleisingerville (now Slinger), Wisconsin, 1920–at least 1984.
Middletown, Ohio, 1980; Staunton, Virginia, since 1980.
In Niesetal-Sandershausen, Germany, exporting organs to U.S. from 1970s
Victoria, TX, 1967-1970; Boston, MA, 1970-1972; Wreatham, MA 1972-1983; Stoughton, MA 1983-1987; Hagerstown, MD 1987-1992; Grand Rapids, MI 1994-1998; Hendersonville, NC.
Chicago and DeKalb, Illinois from 1856 through 1940s.
Johnson City, Tennessee, 1979-1984 as Kimber-Allen, from 1984 as R.A. Colby, Inc.
Boston, Massachusetts, 1983.
Pittsburgh, Pennsylvania 1878-1882; Salem, Ohio 1882-1895; Latrobe, Pennsylvania, 1897; Pomeroy, Ohio, 1900-1913
