| country | company | country | company |
|---|
 USA | Amato Opera Theatre (New York, NY) | USA | Arizona Opera (Phoenix, AZ) |
| USA | Atlanta Opera (Atlanta, GA) | USA | Austin Lyric Opera (Austin, TX) |
| USA | Berkshire Opera Company (Pittsfield, MA) | USA | Boston Lyric Opera (Boston, MA) |
| USA | Brooklyn Academy of Music Opera ( Brooklyn, NY) | USA | Carnegie Hall (New York, NY) |
| USA | Cincinnati Opera (Cincinnati, OH) | USA | Cleveland Opera (Cleveland, OH) |
| USA | Colorado Opera Festival (Denver, CO) | USA | Dallas Opera, (Dallas, TX) |
| USA | Detroit Opera House (Detroit, MI) | USA | Florida Grand Opera (Miami, FL) |
| USA | Fort Worth Opera (Fort Worth, TX) | USA | Houston Grand Opera (Houston, TX) |
| USA | Juneau Lyric Opera (Juneau, AL) | USA | Longwood Opera (Needham, MA) |
| USA | Los Angeles Opera (Los Angeles, CA) | USA | Lyric Opera of Chicago (Chicago, IL) |
| USA | Mercury Opera Rochester (Rochester, NY) | USA | New England Marionette Opera (Peterborough, NH) |
| USA | New Orleans Opera (New Orleans, LA) | USA | New York City Opera (New York, NY) |
| USA | Opera Colorado (Denver, CO) | USA | Opera Columbus (Columbus, OH) |
| USA | Opera Company of Philadelphia (Philadelphia, PA) | USA | Opera Delaware (Wilmington, DE) |
| USA | Opera Idaho (Boise, ID) | USA | Opera Memphis (Memphis, TN) |
| USA | Opera North (Lebanon, NH) | USA | Opera Pacific (Costa Mesa, CA) |
| USA | Orlando Opera Company (Orlando, FL) | USA | Pittsburgh Opera (Pittsburgh, PA) |
| USA | Pocket Opera (San Francisco, CA) | USA | Portland Opera (Portland, OR) |
| USA | Prism Opera (Malden, MA) | USA | San Diego Opera (San Diego, CA) |
| USA | San Francisco Opera (San Francisco, CA) | USA | Santa Fe Opera (Santa Fe, NM) |
| USA | Sarasota Opera (Sarasota, FL) | USA | Seattle Opera (Seattle, WA) |
| USA | Tacoma Opera (Tacoma, WA) | USA | The Metropolitan Opera (New York, NY) |
| USA | Toledo Opera (Toledo, OH) | USA | Tulsa Opera (Tulsa, OK) |
| USA | University of Washington Opera (Seattle, WA) | USA | Utah Festival Opera Company (Logan, UT) |
| USA | Utah Opera (Salt Lake City, UT) | USA | Washington National Opera (Washington, DC) |
| USA | West Bay Opera (Palo Alto, CA) |
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