In 2015, she started her internship at the Regional Court Cologne, with stations at the German Embassy in Prague, at an international law firm in Dusseldorf and at the German Football League (DFL) in Frankfurt. Starting early 2018, Dr. Henseler joined Küttner as an attorney. Dr. Maren Henseler advises, counsels and represents national and international companies, as well as board members, managing directors, executives, in all individual and collective employment law matters. A particular focus of Dr. Henseler is the practice area of compliance, in particular the implementation of compliance and whistle blower systems, as well as conducting internal investigations. In addition, Dr. Henseler has specialized expertise in the practice area of sport employment law, in particular regarding football employment law matters.