Excelling in acting for defendants in major class actions, De Brauw Blackstone Westbroek's mass claims team works closely with the firm's other practice areas such as data privacy, competition, employment and ESG to advise on complex technical disputes. The team is well versed in handling high-profile cases and claims as well as cases involving international aspects. Class actions for damages involving alleged data privacy infringement are a key area of success for the team. Practice head Machteld De Monchy leads the team from Amsterdam and is an expert in handling mass claims and follow-on competition litigation. She is also noted for her pro bono work, where she often handles class actions for underrepresented groups as plaintiffs. Dennis Horeman is a strong litigator and has a wealth of experience handling mass claims, while recently promoted partner Marieke Bredenoord-Spoek continues to specialise in class actions, defending large corporates in complex cases. Also noted is Johan Valk, who assists with class actions and cross-border disputes.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘De Brauw's class action team is the perfect match for high-stake litigation in the Netherlands with its excellent legal knowledge and ability to provide pragmatic advice to achieve a satisfactory outcome.’

  • ‘Machteld de Monchy is excellent, sharp-witted and committed. Remco Kloppenburg manages the team efficiently and effectively. Both are very strategic in a complex context. They bring their vast array of experiences into the case, very much appreciated by us.’

  • ‘The team is absolutely world-class. If you need the best, this is the firm you go to.’

  • ‘A large team that has top-notch experience with defending against the most complex collective action claim in the Netherlands. The team has in-depth knowledge of the law and they are able to think creatively and pragmatically about legal problems.’

  • ‘Machteld de Monchy and Bredenoord-Spoek are trailblazers in the field of collective actions in the Netherlands. They are also empathetic and easy to work with. They spearheaded an initiative to establish a new association for dialogue and exchange about developments in the collective action field in the Netherlands across plaintiff and defense side firms, the academic world and the bench.’

  • ‘De Brauw's dispute resolution practice is exceptional as they offer not only profound expertise on litigation but they show a great deal of team work with other areas of law, including data protection. Dealing with class actions is a métier, for which extensive experience and a track record is paramount - and this is exactly what the team brings to the table. ’

  • ‘The team is a thought leader in class actions. They bring international insights and qualifications to the table which is rare for an independent law firm. They are at the forefront of new cases, including pro bono work in class actions that makes an impact. ’

Key clients

  • Airbnb
  • Amazon
  • Avast
  • Booking.com
  • British Airways
  • Bureau Clara Wichmann
  • Celanese
  • DS Smith
  • FMO
  • J.P. Morgan
  • KPMG
  • Meta
  • NJCM and Defence for Children
  • Otis
  • PACCAR and DAF Group
  • Philips
  • Rabobank
  • Robert Bosch GmbH
  • Salesforce
  • Schiphol Group
  • Shell and NAM
  • SRLEV
  • TikTok
  • Uber

Work highlights

  • Represented PACCAR and DAF Group as lead counsel in around twenty jurisdictions in a complex mass claim in Europe.
  • Represented Airbnb in several mass claims, including Supreme Court proceedings and a class action.
  • Represented Meta in three class actions brought by several claim organisations claiming over €12bn in damages.

Lawyers

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Johan Valk
De Brauw Blackstone Westbroek
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Machteld De Monchy
De Brauw Blackstone Westbroek
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Marieke Bredenoord-Spoek
De Brauw Blackstone Westbroek

Practice head

The lawyer(s) leading their teams.

Machteld de Monchy

Other key lawyers

Marieke Bredenoord-Spoek, Dennis Horeman, Remco Kloppenburg, Johan Valk