The environmental, planning, and public law department at De Brauw Blackstone Westbroek is proficient in regulatory, enforcement, and litigation matters. Martje de Vries Lentsch, renowned for her public litigation capabilities, particularly in energy and infrastructure-related matters, now serves as practice co-head alongside Jasper van Uden, who specialises in complex environmental law and spatial planning issues. Arjan Kleinhout left the firm in July 2025.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge

Testimonials

Collated independently by Legal 500 research team.

  • Jasper van Uden is a knowledgeable individual with a lot of experience.
  • ‘Professional advice. Sometimes questioning things that are not directly asked, but are in line with the way we want to go.’
  • ‘Highly skilled lawyers, business-minded, easily available, and experts at translating complex legal issues into practical advice.’
  • 'Strong team handling high profile cases. Always goes the extra mile for client.'
  • 'Jasper van Uden is a knowledgeable individual with a lot of experience.'

Key clients

  • State of the Netherlands (Ministry of Economic Affairs / Climate and Green Growth)
  • Gasunie
  • Royal Schiphol Group
  • Nederlandse Aardolie Maatschappij B.V. (NAM)
  • Circle Wastewater Services
  • Nederlandse Loterij (the Dutch National Lottery)
  • NEA / Gemeenschappelijke Kernenergiecentrale Nederland (GKN)
  • Verpact (Packaging Recycling)
  • Bureau Clara Wichmann
  • TenneT
  • Porthos (Gasunie, Port of Rotterdam, EBN)
  • Aramis (EBN, Gasunie, Shell & TotalEnergies)
  • Amex (American Express Europe S.A. & American Express Carte France S.A)
  • The Hague Institute for Innovation of Law
  • The Association of Dutch Universities (UNL)

Work highlights

Acting as lead counsel to Royal Schiphol Group, handling all key regulatory, public law, and environmental matters.
Advising both Porthos (Port of Rotterdam, Gasunie & EBN) and Aramis (EBN, Gasunie, Shell & TotalEnergies) on the realisation of two multibillion CCS projects in the Netherlands.
Acting as the lead legal advisor to Gasunie, guiding projects related to the natural gas grid, hydrogen transportation and storage, both onshore and offshore, as well as heat transportation.
Practice head

Jasper van Uden; Martje de Vries Lentsch

Other key lawyers

Josefien Vreeken; Annabel van Schaik; Welmoed Willemsen; Youri Pluis; Max Kaumo