Alexander F. Guminski is an NFLPA-certified contract advisor and attorney, and the Founder and President of PRO ZONE: The Agency, a sports representation firm based in Pittsburgh, Pennsylvania. He has been certified by the National Football League Players Association (NFLPA) since 2016 and represents athletes across the NFL, CFL, FIBA, and NCAA NIL markets, specializing in contract negotiation, marketing representation, and athlete career development. He is also the founder of Guminski Law, P.C., a law practice that operates alongside his agency and focuses on business law, intellectual property, real estate, estate planning, and other legal services commonly relevant to professional athletes. This dual structure allows him to combine legal expertise with sports representation, particularly in contract structuring and off-field financial and business planning. Through PRO ZONE: The Agency, Guminski provides full-service athlete representation including contract negotiation, endorsements, marketing, public relations, post-career counseling, and financial/tax advisory referrals. The agency also operates within the modern NIL ecosystem, helping collegiate athletes build personal brands and secure sponsorship opportunities. Guminski has represented dozens of athletes across professional and collegiate levels and is reported to have negotiated over $100 million in athlete compensation contracts throughout his career. His client portfolio includes NFL, CFL, UFL, and NCAA athletes across football and basketball, along with involvement in NIL deals and community-based athlete initiatives.