Arjan specialises in public law and mainly focuses on energy and environment, state aid, market regulation and public enforcement matters. Arjan is known in the market for his thorough but pragmatic and effective approach to resolving matters. These characteristics and his vast knowledge of public law (including EU regulation) allow him to offer on-point legal advice in complex multi-disciplinary cases. Clients value his sharp legal analyses, strong memory and hands-on approach in achieving the best outcome in regulatory, litigation and enforcement matters. Many clients have praised Arjan’s extensive experience and knowledge of markets and sectors.

According to clients, “Counsel Arjan Kleinhout is the go-to-person for extremely complex and technical energy regulatory questions. He is down to earth and his calm personality helps diffuse volatile situations in negotiations and litigation.”

Arjan is a cutting-edge litigator before the highest administrative and civil courts (both national and European), as well as a sharp negotiator in several cases before the regulatory authorities. These include the Netherlands Authority for Consumers and Markets, the Dutch Data Protection Authority and the European Commission.

His active involvement in complex regulatory and litigation matters contributes towards De Brauw’s integrated approach – unrivalled compared to other firms.

You will not see Kleinhout overlook any argument that is important to the case. His materials are always thorough.

Chambers and Partners (2020)


  • Profession

    Advocaat, admitted to the Bar in the Netherlands in 2005

  • Languages

    Dutch, English, French

  • Education

    VU University Amsterdam

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