American Opera Group: (IL) Oak Park group presents information about upcoming and past productions, tickets, special events, sponsors and donations.
Americolor Opera Alliance of Atlanta: (GA) Opera that celebrates American music and culture by presenting stories based upon American and Afro-centric culture and experiences.
Arizona Opera: (AZ) Perfoms in Phoenix and Tucson, site features season information about shows, cast, and ticket purchase.
Atlanta Opera: (GA) Includes schedule and ticket sales, information on educational programs, and bibliography.
Austin Lyric Opera: (TX) Ticketing, scheduling, and performance news.
Baltimore Opera: (MD) Online ticket sales (including "starving students" discount program) and cast lists for each of the season's productions.
Berkeley Opera: (CA) Local traveling production company. Current performance and ticket information.
Black Box Opera Theater: (WA) Seattle-based repertory company
Boston Children's Opera: (MA) Opera company producing full-length operas sung by children aged 7-15 for children.
Brooklyn Academy of Music: (NY) Offers varieties of performing arts
Buffalo Opera Theatre: (NY) Calendar, news and contact information
California Chamber Opera: (CA) - produces and commissions new works, new translations of existing works, and new productions of standard repertoire.
Canton Comic Opera Company: (OH) dedicated to the preservation and performance of American comic operas and operettas.
Cape Cod Opera: (MA) fully staged opera showcasing local and regional professional talent.
Capitol City Opera Company: (GA) Year-round opera performances in Atlanta and the surrounding metro areas. Performance schedule and news, library, and ticket sales.
Casa Italiana Opera Company: (CA) Presents several operas each year; specializing in Italian Operas. Based in Los Angeles.
Center for Contemporary Opera: (NY) Dedicated to the creation and performance of contemporary American opera and opera in English.
Central City Opera: (CO) Includes details about the current schedule, outreach program, news and history
Chautauqua Opera Company: (NY) Productions in English, opportunities for young artists, season info
Chicago Opera Theater: (IL) Official website, online tickets purchase, season and company information.
Cincinnati Opera: (OH) performs major works, season info
City Concert Opera Orchestra: (CA) Professional San Francisco-based period instrument organization presenting opera in concert format.
Civic Opera Theater of Kansas City: (MO) Schedule, auditions, and history.
Cleveland Opera: (OH) Presents opera, operettas, and musicals at the State Theatre in Playhouse Square.
Comic Opera Guild: (MI) Touring company presenting operetta in English translations. Orchestrations also available.
Concert Opera: (PA) Opera performed in a concert setting.
Connecticut Grand Opera and Orchestra: (CT) Season schedule, synopses, and ticket information.
Connecticut Opera: (CT) History and highlights, performance schedule and ticket ordering information from Hartford-based performing arts organization.
Contemporary Opera of Los Angeles: (CA) Opera in contemporary settings, sung in English.
DeStefano Presents: (NY) Details of the opera company, performances and performers. Ordering information for their CD.
Florentine Opera: (WI) Info about current season and special events, tickets, history, educational programs, merchandise
Fort Worth Opera: (TX) Performs major works, has a young artist program, and performs school tours.
Gloriana Opera Company: (CA) Community musical theater, some operetta
Golden Gate Opera: (CA) Schedule, audition and internship information, and past performances.
Greensboro Opera Company: (NC) Production details, tickets and information
Harrisburg Opera Association: (PA) Season, educational outreach, and historical information
Houston Grand Opera: (TX) Calendar and ticket information. Includes history of HGO. Studio artist program.
Hudson Opera Theatre of New York and New Jersey: (NY) Season schedule, history
Juneau Lyric Opera: (AK) Opera and Musical Theatre since 1975.
Lake George Opera: (NY) Details of upcoming events, company background, reviews of previous productions, and opera education program.
Light Opera Works: (IL) Performing light operas and operettas.
Long Beach Opera: (CA) Details of upcoming performances, background information on company, plus photos and reviews.
Long Leaf Opera: (NC) Information about the current season's operas, including background information and web resources for each opera. Online ticketing.
Los Angeles Opera: (CA) - performs major works, season and production info
Lowell Opera Company: (MA) Background information, upcoming events and reviews of recent events, plus audition details.
Lyric Opera of Chicago: (IL) International-level opera company. Details about the current season, tickets (online ordering), special events, radio broadcasts, education programs, press releases, history and online shopping.
Lyric Opera of Kansas City: (MO) Periodic performances of contemporary and traditional, original-language opera.
LyriCo of St. Louis: (MO) Not-for-profit organization devoted to the performance and promotion of the lyric opera repertoire.
Martinez Opera: (CA) Regional opera company in northern California area
Metropolitan Opera: (NY) Complete information, history, and other opera resources
Michigan Opera Theatre: (MI) - Detroit-based company presenting major works, season info
Mobile Opera: (AL) - performances at Mobile Civic Center
Muddy River Opera Company: (IL) Contact information only. A community program from Quincy University.
New Jersey Opera Theater: (NJ) Presenting concert performances. Company history, upcoming productions, education and support programs and contact details.
New Orleans Opera Association: (LA) Seating charts, ticket information, and administrative information.
New Rochelle Opera: (NY) Calendar and contact information.
New York Chamber Opera: (NY) Past and present productions, creative staff, and current and upcoming performances.
New York City Opera: (NY) Major works, season and company information
New York Gilbert and Sullivan Players: (NY) Professional repertory G&S ensemble. Calendar, ticket information
New York Grand Opera Company: (NY) Performances, repertoire. Free opera in Central Park
Northwest Opera: Compiled listing of companies in Oregon, Washington, and Alaska.
Opera A La Carte: Gilbert and Sullivan: (Touring) Schedule, productions, references, reviews, contacts, and related information.
Opera Colorado: (CO) Current season, performers, company and education programs. Online ticketing and newsletter.
Opera Company of Brooklyn: (NY) Upcoming performances and programs, special events, contact details.
Opera Company of Philadelphia Production Department: (PA) Information about scenery, including plans and photos.
Opera East Texas: (TX) Annual season of staged and concert opera in East Texas.
Opera Ebony: (NY) African-American opera company. Information about artists, tours and projects.
Opera for the Young: (Touring) A professional opera company performing in schools throughout the Midwest.
Opera Grand Rapids: (MI) Performance schedule, photograph gallery, auditions calendar.
Opera Idaho: (ID) Season information, events
Opera Illinois: (IL) Schedules, artists and events
Opera League of New Hampshire: (NH) Schedules, synopses, cast and staff information
Opera Memphis: (TN) Current season, ticket ordering, merchandise, quizzes, and games.
Opera North: (NH) Schedule of productions and events, history, staff listings, newsletter, Young Artists Program.
Opera Pacific: (CA) Season schedule, history, tickets
Opera Pacifica: (WA) Events calendar, contact details, details of friends and sponsors.
Opera San Jose: (CA) Performance schedule, resident artist profiles, educational programs and ticket information.
Opera Vivente: (MD) - Chamber opera company, season information
OperaModa: (IL) Chicago area opera company specializing in American operas.
Orlando Opera: (FL) Calendar of events, volunteer opportunities, and tickets.
Pacific Repertory Opera: (CA) - Current season, special events and more.
Pittsburgh Opera: (PA) Eighth-oldest opera company in the U.S. Major works presented annually.
Pocket Opera: (CA) Season information, events, staff, tickets
Portland Opera: (OR) Schedule and ticket information.
Portland Opera Repertory Theatre: (ME) Production of major opera and other events
Rochester Aria Group: (MN) Dedicated to the performance of classical vocal music and providing performance opportunities for area singers.
Sacramento Opera: (CA) Regional professional opera, season information
San Antonio Opera: (TX) Includes season schedule and information about tickets, educational programs and membership.
San Diego Opera: (CA) Current season, Recital Program, Membership and Sponsorship opportunities, Education program, Company History, the Scenic Studio.
San Francisco Lyric Opera: (CA) Dedicated to the performance of classical opera, traditionally staged and sung in the original language with English supertitles.
San Francisco Opera: (CA) Major operatic works, season and cast information
Santa Fe Opera: (NM) Summer opera programs, major works
Sarasota Opera: (FL) Performance schedules, ticketing and educational programs.
Seattle Opera: (WA) Calendar and online ticket sales
Sonoma City Opera: (CA) Standard operatic repertoire as well as premieres
Southland Opera: (CA) Community outreach company
Summer Opera Theatre Company: (DC) Showcases young and more established artists, aims to bring fully mounted and affordable professional opera to the public.
Tacoma Opera: (WA) Season information, cast bios
Teatro Lirico d'Europa: (Touring) From Europe, the US's most successful touring opera company.
The Amato Opera: (NY) Schedule, reviews, photographs, and past seasons.
The Birmingham Music Cooperative: (AL) Grand opera, two to three productions each season
The Bostonian Opera and Concert Ensemble: (MA) A repertory company presenting opera, music theatre and concerts in Boston and the surrounding area.
The Dallas Opera: (TX) Production information, news updates, archives, and broadcasts.
The Living Opera: (TX) North Texas area chamber opera featuring emerging artists and educational outreach programs.
The Midwest Lyric Opera Company: (MO) Small regional company in St. Louis presenting opera, operetta and vocal performances, utilizes regional artists and singers.
The Opera Company of Astoria: (NY) Dedicated to bringing quality opera to the community.
The Village Light Opera of New York City: (NY) Long standing amateur company which puts on two productions a year.
Toledo Opera: (OH) Season schedule, tour, ticket ordering, and links.
Tri-Cities Opera Homepage: (NY) Season and cast information
Tulsa Opera: (OK) Schedule, artist profiles, tickets, and links.
Utah Festival Opera Company: (UT) Summer opera program.
Vermont Opera Theater: (VT) Small company featuring professional singers and instrumentalists.
Vero Beach Opera Guild: (FL) Dedicated to promoting opera in the community and classroom, plus providing scholarships to promising students.
Virginia Opera: (VA) Schedule and tickets. Presentations in multiple cities
Washington National Opera: (DC) News, season and company info, young artist program, production rentals, and more
West Bay Opera: (CA) Schedule, reviews and information about upcoming events.