Ernst van Win

Ernst van Win

Mediator & Senior Associate | Attorney at law

Employment & Employee Participation & Employment, Employee Participation & Mediation

Ernst is recognised as an experienced consultant/mediator specialising in assisting directors and works councils of large international corporations, as well as many non-profit organisations such as orchestras, museums and provincial authorities. As a former musician himself (trumpet player), he provides advice to many in the arts. He is also a mediator to medical partnerships of professionals, based on his previous role as a dean. Ernst is regularly sought out as a business mediator and arbitrator through parties such as the Netherlands Arbitration Institute (Nederlands Arbitrage Instituut).

Education

After completing his school education at the Stedelijk Gymnasium Leiden, Ernst studied Civil Law at Leiden University and classical trumpet with the principal teacher of trumpet at The Hague Conservatory.

Career

In 1983, Ernst became an attorney alongside the eponymous Paul de Clercq, with whom he went on to form the partnership De Clercq and Van Win Lawyers in 1987. He became a registered and certified business mediator in 1996. Ernst was one of the initiators of the Grotius Employment Law specialist course and has lectured in this, as well as in rules of conduct at the Professional Law School. He joined the Supervisory Council in The Hague in 2006, in the role of ‘Leids Deken’ (Dean of Leiden). In 2009, he was elected as ‘Haags Deken’ (Dean of The Hague) and held this supervisory and administrative position until 2012. He has been a member of the Lawyers’ Conduct Review Committee, and performs various administrative and supervisory roles in the art, museum and healthcare sectors.

Ernst’s daily practice

Ernst handles matters and disputes on behalf of directors and supervisors, and provides boardroom advice on complex organisational changes. He deals with conflicts in partnerships and in behavioural and disciplinary law, and with employment and employment participation law matters, including in the art world. Ernst provides advice relating to Codes of Conduct and ethical issues.

Selected cases

Mergers of museums and orchestras

Provided advice on the employment and employment participation law aspects of proposed mergers and their finalisation.

Arbitration relating to the performance of a pension fund’s administration agreement and on a dispute involving an international partner of one of the big four accountants with his firm.

Guiding and settling of the dismissal of a director/shareholder in a rapidly growing start-up company

Negotiation and purchase of one of the oldest Rembrandts on behalf of Museum de Lakenhal in Leiden

Providing employment law guidance for professional musicians

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The latest developments

Employment, Employee Participation & Mediation

Booking.com and mandatory office attendance: A reasonable requirement, but also a convincing balancing of interests?

3 November 2026

Can an employer require employees to work from the office at least two days a week? The recent court ruling concerning Booking.com has sparked considerable debate. For many, the answer seems obvious: surely requiring two days of office attendance is entirely reasonable? Legally, however, the issue is more nuanced. When the works council (OR) refuses to consent to a proposed decision, the court must assess whether the employer’s interests outweigh those of the works council. And it is precisely this aspect of the ruling that raises questions. Just how convincing is the balancing of interests carried out by the subdistrict court?

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Employment, Employee Participation & Mediation

Self-Insuring for Sickness Benefits and WGA Benefits: Opportunities and Pitfalls for Employers

26 October 2026

As an employer, you can choose to bear the financial risks associated with sickness and incapacity for work of current and former employees yourself. This is known as self-insurance. This option can be financially attractive and gives you greater control over the reintegration of current and former employees. At the same time, self-insurance entails responsibilities and risks. What exactly does self-insurance for Sickness Benefits (Ziektewet) and WGA benefits involve? What are the advantages, and what pitfalls should employers be aware of? In this blog, we explain how self-insurance works and what you need to consider.

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Employment, Employee Participation & Mediation

Carelessness Does Not Constitute Grounds for a Right to Be Consulted

12 October 2026

The Enterprise Chamber of the Amsterdam Court of Appeal (the “Enterprise Chamber”) delivered its ruling on 28 April 2026 in a case brought by the Temporary Works Council (the “TOR”) of the Identification and Screening of Asylum Seekers Service (Dienst Identificatie en Screening Asielzoekers, “DISA”) (ECLI:NL:GHAMS:2026:1105). The Enterprise Chamber ruled that the TOR had no right to be consulted on the decision to treat the reorganisations at DISA and the Immigration and Naturalisation Service (IND) as separate processes, without transferring personnel between them. According to the Enterprise Chamber, the decision concerned the allocation of public-law responsibilities between government services and therefore fell within the scope of the political primacy principle set out in Article 46d of the Dutch Works Councils Act (Wet op de ondernemingsraden, or WOR). Notably, however, the Enterprise Chamber described the decision-making process as “highly careless”. This finding did not lead to a different legal conclusion.

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