Polish star Mateusz has joined ISM in January 2022.
He finished 68th on the Challenge Tour in 2021, including top-10 finishes at the Sydbank Esbjerg Challenge and the Range Servant Challenge by Hinton Golf.
Matuesz said: "I'm very excited to be joining the ISM stable and to have them as my team. I am certain that their unique experience of managing world class players will help me throughout the years and help me to take my game to that next level."
ISM Chief Executive Officer Chubby Chandler said: "I've noticed his results over the last year and seen him play. He's obviously very good and for us it's an entry into a new market. It's exciting times ahead."
