Thomas Catersels

Thomas Catersels

Associate | Attorney at law

Employment & Employee Participation

Thomas mainly advises employers and works councils of varying sizes in diverse sectors, such as healthcare institutions, IT companies, and public sector organisations. He also regularly advises directors. Thomas provides advice in a wide range of areas, ranging from reorganisations and dismissal to consultation and consent processes.

‘I am an approachable, keen and dedicated lawyer with a positive attitude. I am energised by finding the best solution in every situation, based on the client’s best interests.’

Education and career

Thomas successfully completed his Bachelor’s degree in Law at Leiden University, graduating with a major in Law, Entrepreneurship & Management. During his university studies, he took employment law electives that piqued his interest in this area. In 2023 he graduated with his Master’s in Employment Law from Leiden University. While at university, Thomas was an active member of the Leiden employment law student association Sine Labore Nihil, performing committee work such as organising the annual employment law conference. His successful internship with the Employment, Employment Participation & Mediation team led to Thomas joining De Clercq after obtaining his Master’s degree. In 2024, he will commence studies at the Professional Law School (Beroepsopleiding Advocaten).

Thomas’s daily practice

‘My daily practice is a combination of employment law and employment participation law. This includes matters concerning dismissal, reorganisation and restructuring, competition clauses, collective labour agreements and leave. I also regularly draft and modify model employment contracts and complaints procedures. In addition to the above, I guide works councils and directors on employment participation processes with respect to the right of consultation and consent, and I provide advice and guidance on the establishment of works councils. The breadth of my practice means that every day is different, and highly enjoyable.’

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The latest developments

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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Employment, Employee Participation & Mediation

The Self-Employment Act: When Does It Provide Legal Certainty?

8 October 2026

The government aims to provide greater certainty and clarity for self-employed professionals and their clients. To that end, on 1 October 2026, it submitted the draft Self-Employment Act (Zelfstandigenwet) for public consultation. The proposed Act seeks to answer a fundamental question: when can businesses engage self-employed professionals, and when can individuals work as self-employed professionals, with certainty that the relationship does not constitute employment? By establishing clear rules in advance, the government aims to create a safe harbour for those who meet and comply with these requirements. What exactly does the proposed Self-Employment Act entail, and what does it mean for businesses engaging self-employed professionals?

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