Opera Companies

• Aac Presents Opera For All
• Academy of Vocal Arts Opera Theatre (AVA)
• Amarillo Opera
• Amato Opera Theatre
• Anchorage Opera
• Arizona Opera
• Atlanta Opera
• Austin Lyric Opera
• Autumn Leaf Performance
• Baltimore Opera Company
• Bel Canto Opera
• Berkeley Opera
• Bolshoi Theatre
• Boston Academy of Music
• Boston Lyric Opera
• Brighton and Hove Operatic Society (BHOS)
• Bristol Opera
• Buxton Opera House
• Canadian Opera Company
• Capitol City Opera Company
• Casa Italiana Opera Company
• Castleward Opera
• Cedar Rapids Opera Theatre
• Central City Opera
• Centuries Opera Association
• Cincinnati Opera
• Cleveland Opera
• College of New Jersey Opera Theater
• Cologne Opera
• Colorado Opera Festival
• Comic Opera Guild, The
• Commonwealth Opera of Western Massachusetts
• Croatian National Theatre
• Croydon Operatic and Dramatic Association (CODA)
• Dallas Opera, The
• Danish Opera, The
• DeStefano Presents Opera Company
• Dicapo Opera Theatre
• Eastern Metropolitan Opera
• Edmonton Opera
• English National Opera
• English Opera Seattle
• Ensemble Weil
• Eugene Opera
• Finnish National Opera
• Flanders Opera
• Florentine Opera Company
• Florida Grand Opera
• Fort Worth Opera
• Glimmerglass Opera
• Glyndebourne
• Gran Teatro la Fenice
• Grand Opera House Belfast
• Greek National Opera
• Greensboro Opera Company
• Harlem Opera
• Harrisburg Opera Association
• Hawaii Opera Theatre
• Houston Grand Opera
• Hudson Opera Theatre
• Huntsville Opera Theater
• Indiana University Opera Theater
• Indianapolis Opera
• Island Lyric Opera
• Juneau Lyric Opera
• Kitchener-Waterloo Opera
• Knoxville Opera Company
• L'Opéra de Montréal
• L'Opéra Français de New York
• La Monnaie
• Lake George Opera Festival
• Lancaster Opera Company
• Latvian National Opera
• Livermore Valley Opera
• Los Angeles Music Center Opera
• Lyric Opera Cleveland
• Lyric Opera of Chicago
• Lyric Opera of Kansas City
• Lyric Theatre of San Jose
• Madison Opera
• Magnolia Opera Festival, The
• Mariinsky Theatre
• Metro Lyric Opera
• Metropolitan Opera
• Michigan Opera Theatre
• Mobile Opera Incorporated
• Modern Baroque Opera Company
• Nanjing Shaoxing Opera Troupe
• Nashville Opera Association
• National Theatre in Belgrade
• New England Marionette Opera
• New Israeli Opera
• New Orleans Opera
• New Rochelle Opera
• New York City Opera
• New York Grand Opera
• Newberry Opera House
• Nice Opera House
• Norrland's Opera
• Onyx Opera
• Opera Aperta
• Opera At Florham
• Opera Carolina
• Opera Colorado
• Opera Comique of Paris
• Opera Companies On the Web
• Opera Company of Philadelphia
• Opera CoOPERAtive
• Opera de Nantes, Theatre Graslin
• Opera della Luna
• Opera Factory
• Opera Fort Collins
• Opera Illinois
• Opera League of New Hampshire
• Opera Memphis
• Opera Minora
• Opera National de Paris
• Opera Omaha
• Opera Orchestra of New York
• Opera Pacific
• Opera San Jose
• Opera Soloist Ensemble of the Imperial Theatre of Russia
• Opera Theatre of Saint Louis
• Opera Vivente
• Opera/Columbus
• OperaDelaware
• Operas de Montpellier
• Operaworks
• Opéra National du Rhin
• Orlando Opera Company
• Orpheus Lyric Theater
• Pacific Opera Victoria
• Palm Beach Opera
• Pamiro Opera - Northeast Wisconsin Regional Opera Company
• Pegasus Opera
• Piedmont Opera Theatre
• Pittsburgh Opera
• Pocket Opera, Inc.
• Portland Opera
• Portland Opera Repertory Theatre
• Prague Opera Gala
• Prism Opera
• Regina Opera Company
• Royal Opera House
• Royal Swedish Opera House
• Sacramento Opera
• San Diego Opera
• San Francisco Opera
• Santa Barbara Grand Opera Association
• Santa Fe Opera
• Sarasota Opera
• Seattle Opera
• Skylight Opera Theatre
• Sofia National Opera
• Sorg Opera Company
• State Opera South Australia
• Stowe Opera
• Sydney Opera House
• Tacoma Opera
• Taconic Opera
• Teatro alla Scala, Milano
• Théâum;tre d'Art Lyrique de Laval
• Théâum;tre lyrique de Hull
• Toledo Opera
• Triangle Opera
• Tulsa Opera
• Unidentified Flying Opera Company (UFOCO)
• Utah Festival Opera
• Utah Opera
• Vancouver Opera
• Virginia Opera
• Washington East Opera
• Washington Opera, The
• Welsh National Opera
• West Bay Opera
• Worthing Light Opera Company
• Wright State Opera Theater