LOS ANGELES — Peter Katsis, a music manager who helped shepherd the careers of Smashing Pumpkins, Jane’s Addiction, Morrissey and Backstreet Boys, has died. He was 69.

Representatives for Katsis confirmed his death on Thursday in Los Angeles, from complications of congestive heart failure, in a statement to the Hollywood Reporter and Billboard. “To the music world, Peter was one of the most influential managers of his generation. His vision, instincts and fierce belief in his artists helped shape some of the most important careers in music for more than four decades. He saw possibilities others didn’t, inspired those around him to dream bigger, and fought relentlessly for the people and artists he believed in,” his family said.

“Peter was simply larger than life. He loved fiercely, laughed loudly and lived with extraordinary courage and conviction. Above everything else, he loved his family. He was our strength, our fiercest advocate, and the person we could always count on to believe anything was possible. The void he leaves in our lives and our hearts is immeasurable.”

Katsis’ career began in Chicago, where he managed the groundbreaking industrial rock group Ministry. He also worked with emerging regional house music acts, helming A&R for the essential label Trax Records and booked acts like Marshall Jefferson and Adonis at globally prominent nightclubs.

After moving to Los Angeles in the early ’90s, he worked with the Cramps and other experimental rock acts before joining Jeff Kwatinetz at the Firm. There he managed hard rock acts including Korn and Limp Bizkit, helping make them superstars of the “TRL” era. He also worked with 30 Seconds to Mars, rapper Snoop Dogg, and played a major role in building Audioslave, the supergroup of Soundgarden’s Chris Cornell and members of Rage Against the Machine.

Katsis took on diverse pop acts like Enrique Iglesias as well, and helped turn the Backstreet Boys into a stadium act, breaking Ticketmaster records for its 1999 Into the Millennium tour.