Children's Civic Light Opera was created in 1987.
Chicago Civic Opera was created in 1922.
Philadelphia Civic Opera Company was created in 1924.
Philadelphia Civic Grand Opera Company was created in 1950.
Los Angeles Opera was created in 1986.
Lyric Opera of Los Angeles was created in 2002.
Light Opera Works was created in 1980.
Ohio Light Opera was created in 1979.
Light Opera Oklahoma was created in 1983.
American Light Opera Company was created in 1960.
Chicago Civic Opera ended in 1931.
Philadelphia Civic Opera Company ended in 1930.