Philadelphia Civic Grand Opera Company ended in 1955.
Philadelphia Opera Company ended in 1910.
Philadelphia Grand Opera Company ended in 1921.
Philadelphia Lyric Opera Company ended in 1974.
Philadelphia La Scala Opera Company ended in 1954.
Chicago Civic Opera ended in 1931.
Chicago Opera Company ended in 1946.
American Opera Company ended in 1930.
Berkshire Opera Company ended in 2009.
Beecham Opera Company ended in 1920.
Opera Company of Boston ended in 1990.
Aborn Opera Company ended in 1922.