Gregory Geiger is a faculty member at Pomona College and maintains a private teaching studio, L.A. Classical Studio, Inc.

He has been a soloist for LA Opera, LA Master Chorale, Baltimore Opera, Washington National Opera, Baltimore Choral Arts Society, Baltimore Concert Artists and Polaris New Music Ensemble. He studied at Michigan State University and the Peabody Conservatory. He has sung in numerous movie scores and recordings ranging from operatic to country to pop.