Pieter Ariëns Kappers heads an international corporate group of the firm. He regularly advises US, German and other publicly or privately held foreign companies in the areas of mergers and acquisitions, reorganisations, joint ventures, the starting-up of business operations in the Netherlands, including commercial contracts. He heads the German Advisory Group of the firm. Pieter is a recommended M&A lawyer in European Legal 500 and listed in European Legal Experts for Corporate and Commercial law since start of publication. He also regularly advises on media and entertainment matters including television productions, broadcasting and film.

Pieter is a frequent lecturer and the author of various publications. He is a member of the Board of the Netherlands-German Society.He has been long time Secretary General  and is presently Adviser to the Board of the Netherlands Federation of Appraisers, Brokers and Auctioneers of moveable goods Federatie TMV.  Pieter is Vice Chair of the Art, Cultural Institutions and Heritage Law Committee of the International Bar Association. Pieter has been a long time member of the Board of the Netherlands Film Museum serving as Vice-Chairman. He has also been Chairman of the Board of the Foundation International Art Film, Chairman of the Institute for the Code Cultural Sponsoring, General Secretary of the Netherlands Copyright Association and is also a past member of the Comité Exécutif of the International Copyright Association ALAI.

Pieter is 'recommended' by Legal 500. He is a member of the International Bar Association and Associate Member of the American Bar Association.