Brian DeMaris currently serves as Music Director of Mill City Summer Opera and Artist-Faculty at the Aspen Music Festival. He has worked with New York City Opera, Florida Grand Opera, Glimmerglass Opera, Opera Theater of Saint Louis, Syracuse Opera, Tri-Cities Opera, American Opera Projects, American Lyric Theater, Ash Lawn Opera Festival, Music Saint Croix and the Israel Chamber Orchestra. He has appeared at the United Nations, the Aspen Music Festival, Boston’s Jordan Hall, New York’s Studio 54, Jazz at Lincoln Center, Symphony Space, Alice Tully Hall, and in recitals, competitions, and master classes throughout the United States and abroad. He is the 2nd place winner of the 2013 American Prize in Opera and Musical Theater Conducting. Having served as Director of Opera and Musical Theatre at Ithaca College since 2008, in 2015 he joins the faculty of Arizona State University as Artistic Director of the Lyric Opera Theatre program.

DeMaris has also taught at Lawrence University, New England Conservatory School of Continuing Education, George Mason University's International Opera Alliance, the International Vocal Arts Institute in Tel Aviv, and "Meet the Artist" at Lincoln Center. He has served on panels with Opera America and the National Opera Association, and presented master classes with the National Association of Teachers of Singing, New York State Music Teachers Association and New York State School Music Association. His students have performed on Broadway, film and television, and at opera companies and festivals throughout the world.