Zarzuela Di Sí
- Presenters of the traditional Spanish opera form at venues around Washington, DC. Includes upcoming and past performances, press, singers and contact information.
- http://www.zarzueladisi.org/

Opera Orchestra of New York
- (NY) Provides information on Operas staged in NYC, programs and events hosted by OONY, and upcoming events.
- http://www.oony.org

Lyric Opera of Kansas City
- (MO) Periodic performances of contemporary and traditional, original-language opera.
- http://kcopera.org/

American Opera Group
- (IL) Oak Park group presents information about upcoming and past productions, tickets, special events, sponsors and donations.
- http://www.americanoperagroup.org/

The Bostonian Opera and Concert Ensemble
- (MA) A repertory company presenting opera, music theatre and concerts in Boston and the surrounding area.
- http://www.boce.org

Opera East Texas
- (TX) Annual season of staged and concert opera in East Texas.
- http://www.operaet.com

Harrisburg Opera Association
- (PA) Season, educational outreach, and historical information
- http://www.harrisburg-opera.org

New York City Opera
- (NY) Major works, season and company information
- http://www.nycopera.com/

The Birmingham Music Cooperative
- (AL) Grand opera, two to three productions each season
- http://www.operabirmingham.org

Opera Vivente
- (MD) - Chamber opera company, season information
- http://www.operavivente.org/

Hudson Opera Theatre of New York and New Jersey
- (NY) Season schedule, history
- http://www.hotopera.com

Black Box Opera Theater
- (WA) Seattle-based repertory company
- http://www.blackboxoperatheater.com/

Sacramento Opera
- (CA) Regional professional opera, season information
- http://www.sacopera.org/

San Francisco Lyric Opera
- (CA) Dedicated to the performance of classical opera, traditionally staged and sung in the original language with English supertitles.
- http://www.sflyricopera.org/

OperaModa
- (IL) Chicago area opera company specializing in American operas.
- http://www.operamoda.com

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.
- http://www.americoloropera.org

Cincinnati Opera
- (OH) performs major works, season info
- http://www.cincinnatiopera.org/

Juneau Lyric Opera
- (AK) Opera and Musical Theatre since 1975.
- http://www.juneauopera.org/

California Chamber Opera
- (CA) - produces and commissions new works, new translations of existing works, and new productions of standard repertoire.
- http://www.californiachamberopera.com

Pacific Repertory Opera
- (CA) - Current season, special events and more.
- http://www.propera.org

San Antonio Opera
- (TX) Includes season schedule and information about tickets, educational programs and membership.
- http://www.lyricoperasa.com/

The Living Opera
- (TX) North Texas area chamber opera featuring emerging artists and educational outreach programs.
- http://www.thelivingopera.org/

Opera A La Carte: Gilbert and Sullivan
- (Touring) Schedule, productions, references, reviews, contacts, and related information.
- http://www.operaalacarte.org/

City Concert Opera Orchestra
- (CA) Professional San Francisco-based period instrument organization presenting opera in concert format.
- http://www.cityconcertopera.com

Pittsburgh Opera
- (PA) Eighth-oldest opera company in the U.S. Major works presented annually.
- http://www.pittsburghopera.org/

Teatro Lirico d'Europa
- (Touring) From Europe, the US's most successful touring opera company.
- http://www.maj.org/opera/TLdE.html

Sonoma City Opera
- (CA) Standard operatic repertoire as well as premieres
- http://sonomacityopera.org

Capitol City Opera Company
- (GA) Year-round opera performances in Atlanta and the surrounding metro areas. Performance schedule and news, library, and ticket sales.
- http://www.ccityopera.com

Utah Festival Opera Company
- (UT) Summer opera program.
- http://www.ufoc.org/

Opera League of New Hampshire
- (NH) Schedules, synopses, cast and staff information
- http://www.operanh.org/

Opera Idaho
- (ID) Season information, events
- http://www.operaidaho.org/

Northwest Opera
- Compiled listing of companies in Oregon, Washington, and Alaska.
- http://www.scn.org/nwopera/

Los Angeles Opera
- (CA) - performs major works, season and production info
- http://www.losangelesopera.com/

Golden Gate Opera
- (CA) Schedule, audition and internship information, and past performances.
- http://www.goldengateopera.org/

Martinez Opera
- (CA) Regional opera company in northern California area
- http://mtzo.com/htm/mtzohome.htm

New York Chamber Opera
- (NY) Past and present productions, creative staff, and current and upcoming performances.
- http://www.chamberopera.net

Fort Worth Opera
- (TX) Performs major works, has a young artist program, and performs school tours.
- http://www.fwopera.org

Opera San Jose
- (CA) Performance schedule, resident artist profiles, educational programs and ticket information.
- http://www.operasj.org/

Brooklyn Academy of Music
- (NY) Offers varieties of performing arts
- http://www.bam.org/

Cape Cod Opera
- (MA) fully staged opera showcasing local and regional professional talent.
- http://www.capecodopera.org

Opera Grand Rapids
- (MI) Performance schedule, photograph gallery, auditions calendar.
- http://www.operagr.com

Gloriana Opera Company
- (CA) Community musical theater, some operetta
- http://www.gloriana.org/

Berkeley Opera
- (CA) Local traveling production company. Current performance and ticket information.
- http://www.berkeleyopera.org/

New Jersey Opera Theater
- (NJ) Presenting concert performances. Company history, upcoming productions, education and support programs and contact details.
- http://www.njot.org/

Opera Company of Brooklyn
- (NY) Upcoming performances and programs, special events, contact details.
- http://www.operabrooklyn.com/

Opera for the Young
- (Touring) A professional opera company performing in schools throughout the Midwest.
- http://www.operafortheyoung.org/

Lowell Opera Company
- (MA) Background information, upcoming events and reviews of recent events, plus audition details.
- http://www.lowellopera.com/

Contemporary Opera of Los Angeles
- (CA) Opera in contemporary settings, sung in English.
- http://www.contemporaryopera.com

Lake George Opera
- (NY) Details of upcoming events, company background, reviews of previous productions, and opera education program.
- http://www.lakegeorgeopera.org

Opera Pacifica
- (WA) Events calendar, contact details, details of friends and sponsors.
- http://www.operapacifica.org

Vermont Opera Theater
- (VT) Small company featuring professional singers and instrumentalists.
- http://www.vermontopera.org/

Houston Grand Opera
- (TX) Calendar and ticket information. Includes history of HGO. Studio artist program.
- http://www.houstongrandopera.org/

Rochester Aria Group
- (MN) Dedicated to the performance of classical vocal music and providing performance opportunities for area singers.
- http://www.rochesterariagroup.org

Long Beach Opera
- (CA) Details of upcoming performances, background information on company, plus photos and reviews.
- http://www.longbeachopera.org/

Greensboro Opera Company
- (NC) Production details, tickets and information
- http://www.greensboroopera.org

Center for Contemporary Opera
- (NY) Dedicated to the creation and performance of contemporary American opera and opera in English.
- http://www.conopera.org

Opera North
- (NH) Schedule of productions and events, history, staff listings, newsletter, Young Artists Program.
- http://www.operanorth.org

Central City Opera
- (CO) Includes details about the current schedule, outreach program, news and history
- http://www.centralcityopera.org/

Virginia Opera
- (VA) Schedule and tickets. Presentations in multiple cities
- http://www.vaopera.org/

The Village Light Opera of New York City
- (NY) Long standing amateur company which puts on two productions a year.
- http://www.vlog.org/

DeStefano Presents
- (NY) Details of the opera company, performances and performers. Ordering information for their CD.
- http://www.destefanopresents.org

Tulsa Opera
- (OK) Schedule, artist profiles, tickets, and links.
- http://www.tulsaopera.com/

Tri-Cities Opera Homepage
- (NY) Season and cast information
- http://www.tricitiesopera.com/

Toledo Opera
- (OH) Season schedule, tour, ticket ordering, and links.
- http://www.toledo-opera.com/

Tacoma Opera
- (WA) Season information, cast bios
- http://www.tacomaopera.com/

Summer Opera Theatre Company
- (DC) Showcases young and more established artists, aims to bring fully mounted and affordable professional opera to the public.
- http://summeropera.org/

Southland Opera
- (CA) Community outreach company
- http://www.southlandopera.org/

Seattle Opera
- (WA) Calendar and online ticket sales
- http://www.seattleopera.org/

Sarasota Opera
- (FL) Performance schedules, ticketing and educational programs.
- http://www.sarasotaopera.org/

Santa Fe Opera
- (NM) Summer opera programs, major works
- http://www.santafeopera.org/

San Francisco Opera
- (CA) Major operatic works, season and cast information
- http://www.sfopera.com/

San Diego Opera
- (CA) Current season, Recital Program, Membership and Sponsorship opportunities, Education program, Company History, the Scenic Studio.
- http://www.sdopera.com/

Portland Opera Repertory Theatre
- (ME) Production of major opera and other events
- http://www.portopera.org

Portland Opera
- (OR) Schedule and ticket information.
- http://www.portlandopera.org/

Pocket Opera
- (CA) Season information, events, staff, tickets
- http://www.pocketopera.org/

Orlando Opera
- (FL) Calendar of events, volunteer opportunities, and tickets.
- http://www.orlandoopera.org/

Opera Pacific
- (CA) Season schedule, history, tickets
- http://www.operapacific.org/

Opera Memphis
- (TN) Current season, ticket ordering, merchandise, quizzes, and games.
- http://www.operamemphis.org/

Opera Illinois
- (IL) Schedules, artists and events
- http://www.operaillinois.com/

Opera Ebony
- (NY) African-American opera company. Information about artists, tours and projects.
- http://www.operaebony.org/

Opera Company of Philadelphia Production Department
- (PA) Information about scenery, including plans and photos.
- http://tech.operaphilly.com/

New York Grand Opera Company
- (NY) Performances, repertoire. Free opera in Central Park
- http://newyorkgrandopera.org/

New York Gilbert and Sullivan Players
- (NY) Professional repertory G&S ensemble. Calendar, ticket information
- http://www.nygasp.org/

West Bay Opera
- (CA) Schedule, reviews and information about upcoming events.
- http://www.wbopera.org/

Washington National Opera
- (DC) News, season and company info, young artist program, production rentals, and more
- http://www.dc-opera.org/

New Orleans Opera Association
- (LA) Seating charts, ticket information, and administrative information.
- http://www.neworleansopera.org/

Mobile Opera
- (AL) - performances at Mobile Civic Center
- http://www.mobileopera.org/

The Midwest Lyric Opera Company
- (MO) Small regional company in St. Louis presenting opera, operetta and vocal performances, utilizes regional artists and singers.
- http://mlo.8m.com/

Michigan Opera Theatre
- (MI) - Detroit-based company presenting major works, season info
- http://www.motopera.org/

Metropolitan Opera
- (NY) Complete information, history, and other opera resources
- http://www.metopera.org/

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.
- http://www.lyricopera.org/

Light Opera Works
- (IL) Performing light operas and operettas.
- http://www.light-opera-works.org/

Florentine Opera
- (WI) Info about current season and special events, tickets, history, educational programs, merchandise
- http://www.florentineopera.org/

Long Leaf Opera
- (NC) Information about the current season's operas, including background information and web resources for each opera. Online ticketing.
- http://longleafopera.org/

Connecticut Opera
- (CT) History and highlights, performance schedule and ticket ordering information from Hartford-based performing arts organization.
- http://www.connecticutopera.org/

Comic Opera Guild
- (MI) Touring company presenting operetta in English translations. Orchestrations also available.
- http://www-personal.umich.edu/~mgillett/coghome.htm

Connecticut Grand Opera and Orchestra
- (CT) Season schedule, synopses, and ticket information.
- http://www.ctgrandopera.org

Concert Opera
- (PA) Opera performed in a concert setting.
- http://www.concertopera.com/

Cleveland Opera
- (OH) Presents opera, operettas, and musicals at the State Theatre in Playhouse Square.
- http://www.clevelandopera.org/

Civic Opera Theater of Kansas City
- (MO) Schedule, auditions, and history.
- http://www.kc-civicopera.org/

Chicago Opera Theater
- (IL) Official website, online tickets purchase, season and company information.
- http://www.chicagooperatheater.org/

Chautauqua Opera Company
- (NY) Productions in English, opportunities for young artists, season info
- http://www.chautauqua-inst.org/

Casa Italiana Opera Company
- (CA) Presents several operas each year; specializing in Italian Operas. Based in Los Angeles.
- http://www.casaitaliana.org

Buffalo Opera Theatre
- (NY) Calendar, news and contact information
- http://www.buffalo.com/buffaloopera

Boston Children's Opera
- (MA) Opera company producing full-length operas sung by children aged 7-15 for children.
- http://www.bostonchildrensopera.com/

Baltimore Opera
- (MD) Online ticket sales (including "starving students" discount program) and cast lists for each of the season's productions.
- http://www.baltimoreopera.com/

Austin Lyric Opera
- (TX) Ticketing, scheduling, and performance news.
- http://www.austinlyricopera.org/

Atlanta Opera
- (GA) Includes schedule and ticket sales, information on educational programs, and bibliography.
- http://www.atlantaopera.org/

Opera Colorado
- (CO) Current season, performers, company and education programs. Online ticketing and newsletter.
- http://www.operacolorado.org

The Dallas Opera
- (TX) Production information, news updates, archives, and broadcasts.
- http://www.dallasopera.org/

The Amato Opera
- (NY) Schedule, reviews, photographs, and past seasons.
- http://www.amato.org/

Arizona Opera
- (AZ) Perfoms in Phoenix and Tucson, site features season information about shows, cast, and ticket purchase.
- http://www.azopera.com/