Ben Gulley has been hailed as "outstanding" (Opera News) and "startlingly gifted" (San Francisco Classical Voice).  Gulley's engagements for the 2025-26 season include Don José in Carmen with Knoxville Opera, Radames in Aida with Anchorage Opera, Canio in Pagliacci with Opera San Jose and Opera Las Vegas, and concert appearances with the Lancaster Festival, Orchestra Miami, South Dakota Symphony Orchestra, Lansing Symphony Orchestra, and Symphony San Jose.

Recent artistic highlights include Romeo in Roméo et Juliette with Opera Idaho, Cavaradossi in Tosca with Sarasota Opera, the Prince in Rusalka at Portland Opera, Foresto in Verdi's Requiem with the Opera Festival of Chicago, Rodolfo in La bohème with Knoxville Opera and Canio in Pagliacci with Pensacola Opera, Edgardo in Opera Orlando's Lucia di Lammermoor, Radames in Aida with Fort Worth Opera, and with Skylight Music Theatre as Quasimodo in Hunchback of Notre Dame and headlining "An Evening with Sir Time Rice."

Additional concert engagements include Grand Rapids Symphony (Carmina Burana), Kalamazoo Symphony Orchestra, Symphony San Jose, Fontana Chamber Arts (with NPR's Peter Dugan), Flagstaff Symphony Orchestra and Modesto Symphony Orchestra (Verdi's Requiem), Orchestra Iowa (Carmina Burana; Verdi's Requiem), Wheeling Symphony Orchestra, Orchestra Miami, Asheville Symphony, Hidden Valley Music Seminars, Tallahassee Symphony, and Bruckner's Te Deum and Mahler's Das Lied von der Erde with the Belgian National Orchestra in Brussels and Namur, Belgium.

In 2016, Gulley released his debut solo album of original music, In Between, available on all major streaming services.  From 2010-2014, Gulley was a member of the Sony/BMG Masterworks' The American Tenors, alongside Nathan Granner and Daniel Montenegro.