Thompson coached the Isles' AHL farm team, the Bridgeport Sound Tigers, to their first division championship in 10 years during the 2011-12 season with a 41-26-9 record. He spent the previous two seasons coaching the Alaska Aces of the ECHL, leading the team to the Kelly Cup in his second season while earning coach of the year honors.
"Brent did a great job in Bridgeport last year molding our young prospects into a division-winning team," Islanders general manager Garth Snow said in a statement. "With his coaching experience and defensive expertise, we're excited for him to join our coaching staff."
Prior to coaching Alaska, Thompson served as an assistant with the AHL's Peoria Rivermen from 2005-09. Thompson turned to coaching after a 15-year playing career that included 121 NHL games ended in 2005 with the AHL's Providence Bruins.