Jan-Willem van Rooij
Partner - Attorney at law

Jan-Willem van Rooij

Jan-Willem van Rooij, is a member of the Corporate practice group in our Dutch offices. He focuses on national and international Energy & Infrastructure transactions and projects, as such he co-chairs our Energy & Infrastructure team.

About Jan-Willem van Rooij

Jan-Willem is a partner with Loyens & Loeff and has over 20 years of experience in M&A transactions and projects. He specializes in national and international mergers and acquisitions, joint ventures, participations, restructuring and corporate advice with a strong focus on energy and infrastructure transactions. He advises both strategic parties as well as financial parties such as infrastructure funds and private equity firms. Jan-Willem is co-chairs the firm’s Energy & Infrastructure team.

He has advised on the acquisition of a Refinery, the acquisition of gas & coal fired powerstations, various sales of onshore wind portfolios, structuring and advising consortia in relation to offshore wind projects, various buy and sale mandates on solar transactions and also has been involved in most of the recent E&P transactions in the Netherlands.

What others say about Jan-Willem

Chambers Europe: Jan-Willem Van Rooij acts for multinational oil and natural gas companies on transactions and energy projects. He is praised by clients for his attentiveness, one calling him "dedicated, available and knowledgeable." (2021)

Chambers Europe: "Jan-Willem Van Rooij is regarded by an interviewee as "very sharp, good in negotiations and to the point," whilst another interviewee singles out his communication skills: "He's always friendly and honest, has good judgement and goes the extra mile as required." He handles a range of commercial matters, including joint ventures, investments and share transactions." (2020)

Chambers Europe: "Jan-Willem Van Rooij is described by interviewees as an 'exceptional deal coordinator and adviser'." (2019)

Legal 500: "The ‘calm, hands-on’ Jan-Willem van Rooij heads Loyens & Loeff’s ‘top-notch’ department." (2018)

Legal 500: "Jan-Willem van Rooij, who ‘always remains composed and bridges differences between opposing parties’, advised DIF on the sale of DIF Infrastructure II’s assets to APG Asset Management." (2018)


  • International Bar Association (member European Forum), 2010
  • American Bar Association (subcommittee co-chair), 2010
  • Association of International Petroleum Negotiators (chair of the Dutch chapter), 2010
  • Dutch Bar Association, 2000


  • Columbia University Program in American Law, 2002
  • Dutch civil law, Erasmus University Rotterdam, 1999


  • Dutch
  • English

T: +31 10 224 65 52
M: +31 6 53 26 01 31
E: [email protected]