Alexander Filippos Guminski (commonly known as Alex Guminski) is an American sports agent and attorney. He is the Founder and President of PRO ZONE: The Agency, a Pittsburgh-based sports agency specializing in National Football League (NFL), Canadian Football League (CFL), and National Collegiate Athletic Association (NCAA) Name, Image, and Likeness (NIL) contract negotiation and marketing representation. He is also the founder of Guminski Law, P.C. in Pittsburgh, Pennsylvania. He is best known for negotiating the largest CFL player contract for an American running back in over 15 years when Guminski finalized the contract of his client, Ka'Deem Carey, with the Calgary Stampeders in January 2022.