About
Tess is an Associate in the antitrust, competition and trade team of our firm's Amsterdam office.
She specialises in competition law, European law, Dutch administrative law and regulated markets. She has broad experience in both national and cross-border litigation and has represented a range of clients before the Dutch courts, the European Courts, the Dutch (regulatory) authorities (ACM, NVWA) and the European Commission. Tess regularly advises technology clients on the Digital Markets Act and FMCG clients on competition and regulatory compliance matters. She is also regularly engaged in transactions, focusing on both antitrust and regulatory due diligence aspects.
Additional Information
- Advising a tech client on litigation and regulatory aspects of the Digital Markets Act.
- Representing an FMCG client in litigation on fines relating to violations of a Dutch advertising ban.
- Representing various telecom and media clients in Dutch court litigation on various aspects of the Dutch Telecommunications Act.
- Representing Amsterdam UMC in Dutch court litigation against the mandated shutdown of (pediatric) congenital heart surgery.

Tess Heystee
Associate
Amsterdam Office
Strawinskylaan 10
P.O. Box 75299
1077 XZ Amsterdam