Jacek Krentusz is a graduate of the Faculty of Law and Administration at the Jagiellonian University in Kraków. He is a legal counsel in the Regional Chamber of Legal Counsels in Warsaw. He specialises in litigation and arbitration.

He has been associated with the Romanowski i Wspólnicy law firm since 2017.

Previously, Jacek Krentusz was an assistant judge at the Court of Appeals in Warsaw, in the department adjudicating civil and commercial cases, including cases related to intellectual property protection. In 2015, he passed the judicial exam with very good results.

He completed postgraduate studies in corporate law and intellectual property law at the University of Warsaw. He also studied philosophy.