Curriculum Vitae

Lawyer / associate partner

Expertises

Employment law
Civil service law
Pension law
Employee participation law

Education

Law, Leiden University
Post academic training Labour Law (PALA), Erasmus University Rotterdam/VU
Pension law, Oysterwijck College/Akkermans & Partners

Memberships

Member of the Netherlands Employment Lawyers Association (VAAN)
Member of The Hague Employment Lawyers Association (VHAA)
Member of the Labour Law Association
Member of the Association Civil Servants & Law
Member of the Association for Pension Law

Ancillary activities

Disciplinary judge Royal Dutch Hockey Association (KNHB)
Editorial secretary of the Journal of Public Sector Law (TAR)
Lecturer Legal PAO Leiden University (collective labour law and strike law)
Treasurer VHAA

Publications

The role of piecework in employment law, Labour Law 2023/36
Labour law sanctions bookish employee and civil servant, TAR 2022/120
Annotation collective dismissal committee, JAR 2022/40
Shared duty of care between employer and pension provider in the provision of information, Pension Law Association, March 2021
Dismissal for breach of performance standard: double preventive dismissal test, TAR 2020/17
Limits to civil servants’ freedom of expression on social media, TAR 2018/1
“Drastic changes to the Minimum Wage and Minimum Holiday Allowance Act as of 1 January 2018”, TAP 2017/301

Languages

Dutch
English
German

Koen Vermeulen

‘Solving Complex Legal Puzzles Together’

Not everything that happens in the workplace is directly covered by employment law. That’s why, when it comes to dismissal, pensions, or employee participation, it’s crucial to involve an expert who understands the entire playing field.

Koen Vermeulen is that specialist. With more than 20 years of experience as an employment lawyer, Koen is well-versed in employment law, employee participation law, and pension law. He advises, litigates, and gives presentations on key developments in his field. His practice includes companies, organisations, institutions, and individuals, covering all aspects of employment law, employee participation, and pension schemes.

Koen acts with a (pro)active commitment to his client’s interests. He excels when things get complicated. Even when multiple parties or conflicting interests are involved, Koen maintains his focus on the broader picture. Whatever your case involves, with Koen by your side, you can count on solid support that offers a solution to your concerns.

In addition to his legal practice, Koen has a strong scientific interest, which he pursues through publications and teaching. The latter has included several years in the field of collective labour law (collective labour agreement law) at the Employment Law Specialisation Course organised by Leiden University.

What Koen values at GMW advocaten is the space and flexibility the firm offers him. He is also impressed by the high level of knowledge and service-oriented approach of his colleagues. Working together to solve complex legal puzzles for clients is what motivates Koen.

Articles

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23 July 2025

Medical decision making in the employment relationship from the employer’s perspective

Employers often perceive sickness notifications and absenteeism as a significant burden. This is understandable. Employees on sick leave would also prefer to be at work rather than at home unable to work.

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16 July 2025

Business closure: what to do with employees?

The company is shutting down. This may be due to poor financial performance or because the sole owner is seriously ill or has passed away. However, ceasing operations and closing the doors does not mean that employment contracts with staff automatically end. So how does this work?

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10 July 2025

Implications of the Uber-ruling for companies employing freelancers

Is a freelancer an employee or a contractor? The distinction carries major implications for legal protection, as well as financial and tax consequences.

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Video

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Employment law

Watch on demand: Top 10 things to check in your Dutch employment contract webinar – in collaboration with IamExpat

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