Bradley Ellingboe has been on the faculty of the University of New Mexico since 1985, where he is Professor of Music and Regents Lecturer. He has served as Chairman of the Department of Music. In the fall of 2005 Ellingboe stepped down from his post as Head of the Voice Area and assumed the title of Director of Choral Activities. He is a graduate of Saint Olaf College and the Eastman School of Music and has done further study at the Aspen Music Festival, the Bach Aria Festival, the University of Oslo and the Vatican.

Ellingboe is well known as a composer of choral music, with over 110 pieces in print. His choral music is widely sung and is published by Oxford, Augsburg, Walton, Hal Leonard, Mark Foster, Choristers Guild, Concordia, and particularly the Kjos Music Company, for whom he edits two series of choral octavos. His largest work, the Requiem for choir and orchestra, was premiered in 2002. Since its premiere it has been performed over 200 times across the United States, including its Carnegie Hall debut, with Ellingboe conducting a festival choir of nearly 300 singers from across the U.S., in June of 2010.

Ellingboe has won annual awards for his choral compositions from ASCAP, the American Society of Composers, Arrangers and Publishers since 2000. His music has been performed and recorded by such groups as the Santa Fe Desert Chorale, Philip Brunelle's VocalEssence, the Saint Olaf Choir, the Harvard Glee Club, Craig Hella Johnson's Conspirare, and the choirs of the University of Michigan and Luther College, among many others.

He has prepared choirs for such luminaries as Dave Brubeck, Moses Hogan, Alice Parker, Morten Lauridsen and Robert Ray. At the request of composer Libby Larsen the UNM Women's Chorus, "Las Cantantes," recorded all Larsen's music for treble chorus. Ellingboe has led festival choirs and workshops in 37 states and 10 European countries.

An active church musician, Ellingboe was Director of Music at St. Paul Lutheran Church of Albuquerque from 1990-2009. He has given workshops for the AGO, PAM, ALCM, and NPM. He has been on the summer faculties of Saint Olaf College, Southern Methodist University and the Montreat Conference Center, among many others.

As a bass-baritone soloist, Ellingboe has sung across the United States and in Japan, Korea, Norway, England and Mexico. He has appeared under such distinguished conductors as Robert Shaw, Helmuth Rilling and Sir David Willcocks.

In 2005 Ellingboe joined the national board of the Chorister's Guild. The UNM University Chorus, which Ellingboe has directed since 1985, won the Albuquerque Arts Alliance "Bravos Award" for musical excellence in 2006. In 2008 the UNM Alumni Association named him Faculty of the Year. Professor Ellingboe is the editor of Choral Music for Sundays and Seasons (2004), published by Augsburg Fortress Press. He is also editor of two books of songs by the Norwegian composer Edvard Grieg which have been widely hailed as significant additions to the understanding of Grieg. For his efforts on behalf of Norwegian music, Ellingboe was awarded the Medal of Saint Olav by His Majesty King Harald V of Norway.