
Loyens & Loeff's litigation and risk management practice has a sizeable team handling complex litigation, including class actions. Bastiaan Kemp leads the practice and is known for his expertise in corporate governance cases and multi-jurisdictional litigation. He is well versed in advising corporate clients, private equity funds and investment firms. He works closely together with Marit Bosselaar, who focuses her practice on class actions and commercial litigation, often advising on ESG-related issues and collective settlements. The wider litigation group is co-led by disputes expert Sidney Berendsen and also has a pro bono programme assisting with ESG and class action litigation.
Testimonials
Collated independently by Legal 500 research team.
‘Experts in litigation, fast and efficient. Important to report that I have confidence that the case/file is well under control and that our concerns are being well taken care of.’
‘The team has excellent experience in admissibility issues in class action proceedings’
‘The Loyens & Loeff class action team is great to work with.’
‘Sidney Berendsen and Marit Bosselaar are the stars of the show. They are great. Amazing litigators and very commercial.’
‘The team are thorough in developing their argumentation and fun to work with.’
‘Marit Bosselaar is a real talent.’
‘We experience our cooperation with Marit Bosselaar as very pleasant with a high level of substantive and strategic alignment.’
Key clients
- Former CEO of Airbus
- ICAP plc and ICAP Europe Ltd
- Facebook Netherlands B.V./Meta Platforms Ireland Ltd.
- Dunea N.V.
Work highlights
- Represented the former CEO of Airbus in denying alleged claims in a class actions lawsuit.
Lawyers

Practice head
The lawyer(s) leading their teams.
Sidney Berendsen, Bastiaan Kemp