Boston, Massachusetts 1901-1906; Cambridge, Massachusetts, 1906-1908.
Detroit, Michigan, 1874-1910; 1912-1917.
Boston, Massachusetts, 1958–1963; New York City, New York 1965–1980s; Charlotte, North Carolina 1980s; Monroe, North Carolina from 1992-2015.
Denver, Colorado, from 1972
Lincoln, Nebraska, 1969-Present.
Rapid City, South Dakota, from 1980s.
Lake City, Iowa, from 1974.
Sainte-Rosalie, Quebec, Canada 1979; Saint-Hyacinthe, Quebec, Canada, from 1988.
Texas, from 1972.
Johnson City, Tennessee, 1979-1984 as Kimber-Allen, from 1984 as R.A. Colby, Inc. (also Roger A. Colby, Inc.)
Schleisingerville (now Slinger), Wisconsin, 1920–at least 1984.
Dallas, Texas 1965-68, at Aeolian-Skinner 69-72. reestablished in Garland TX 1974
Milwaukee, Wisconsin 1886-1914.
Newton, Massachusetts, from 1972.
San Francisco, California, 1970-2004; Benicia, California, from 2004.
Lithonia, Georgia since 1973.
New York City, 1859; Mount Vernon, NY in 1928; Yonkers, New York from 1940s until 1985.
Mankato, Minnesota from 1964-1967. St. Peter, Minnesota, from 1967.
In Niesetal-Sandershausen, Germany, exporting organs to U.S. from 1970s
New Market, Tennessee, from 1991.
Columbus, Ohio, 1932-1981.
New York, New York, 1872-1886.
Middletown, Ohio, 1980; Staunton, Virginia, since 1980.
Newburgh, New York c.1970-1990s.
Kansas City, Kansas 1938-85; Walnut Creek, California, by 1989.
Austin, Texas 1948-1995.
New York City, New York, 1872-1893; branches in Philadelphia, Pennsylvania and Baltimore, Maryland.
Boston, Massachusetts, 1847-1850; Reading, Massachusetts, 1850-1872.
New Haven, Connecticut, from 1950s.
Boston, Massachusetts 1827-1872; succeeded by E. & G. G. Hook & Hastings.
Charlotte, North Carolina, 1968; and Sun Prairie, Wisconsin, 1989.
Rock Island, Illinois, 1908-ca.1927.
Successor to E. R. Kilgen, St. Louis, Missouri, 1939-1960
Toledo, Ohio, from 1952.
Royal Oak, Michigan; Successor to A. James Aebel & Sons.
Germany prior to 1925; Erie, Pennsylvana; North Tonawanda New York; Buffalo New York, 1932-1974.
England, since 1828; American subsidiary in Worcester, Massachusetts, 1986.
Jefferson City, Tennessee, from 1967.
Valley Springs, South Dakota from 1972.
District of Columbia, Maryland, and Virginia from 1915.
Milwaukee, Wisconsin, 1924–1942.
Paterson, New Jersey, from 1918.
New York City, New York, from 1972
New York City, New York, 1886-1893.
Pittsburgh, Pennsylvania 1878-1882; Salem, Ohio 1882-1895; Latrobe, Pennsylvania, 1897; Pomeroy, Ohio, 1900-1913
