Willem heads the IP department at Ploum. He focuses on soft IP and advertising & marketing law. He regularly coordinates pan-European trade mark enforcement and pan-European marketing projects. He is a domain name panelist with WIPO and the Czech Arbitration Court, a WIPO Legal Rights Expert and Chariman of the board of the Professional Education for Benelux trade mark attorneys. He co-founded the Netherlands Advertising Law Association and made an honary member in 2016. Willem is a member of the Executive Committee of MARQUES, in which he has a specific responsibility for internal relations, operations, programming, organizing conferences and events and combatting trade mark scams.

Alessandra is MARQUES External Relations Officer since February 2010. She has been practicing as Italian and European Trade Mark Attorney for twenty-six years. She works at Buzzi, Notaro & Antonielli d’Oulx based in Turin, Italy since 2001. Italian-native speaker, she is conversant with the English, French, and German languages. She counsels on all ranges of matters concerning trademarks, geographical indications, designs, copyright, domain names and social media, with a wide experience on advising and representing clients of all sizes in the frame of extrajudicial controversies, settlement transactions and ADR proceedings. After completing the formal national training course, in January 2022, Alessandra has qualified as Mediator of Civil and Commercial Disputes.