Opera Companies of Colorado (Year Founded)
Central City Opera (1933) - three operas in summer repertory plus other productions and programs thoughout the year
Empire Lyric Players (1958) - a Gilbert and Sullivan company that performs an opera annually
Opera Fort Collins (1979) - a classic opera in August, a mid-year gala and a concert opera in the spring
Colorado Light Opera (1979) - formerly CU Opera in the Summer; two productions in repertory each summer
Opera Colorado (1983) - three operas per season plus other productions and programs throughout the year
Opera Theatre of the Rockies (1999) - an annual opera production in Colorado Springs plus outreach programs
Emerald City Opera (2003) - a fully-staged opera in August in Steamboat Springs plus an opera by Opera Institute Artists
High Desert Opera Company (2003) - a fully-staged opera and a New Year's Eve Gala annually in Grand Junction
Loveland Opera Theatre (2006) - an annual opera, opera classes, and a school outreach program

Colorado Music Festivals with an Opera Component
Aspen Music Festival - three opera productions as part of a summer music festival in the high country
Crested Butte Music Festival - a semi-staged opera included in a summer music program

University Opera Programs in Colorado
Colorado State Opera Theatre - an opera in the fall and spring, a fund raiser in the fall
CU Opera - three operas during the academic year plus opera scenes
Lamont Opera Theatre, University of Denver - a production in the fall and spring plus opera scenes
UNC Opera Theatre - two major opera productions per year and opera scenes