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

Reported Sick but Competing in a HYROX Race: Can an Employer Dismiss You?

29 September 2026

An employee calls in sick, stating that even minor exertion leaves her exhausted. Two weeks later, she takes part in an intensive HYROX competition. Her employer loses confidence in her and summarily dismisses her. The subdistrict court rules that the dismissal was justified.

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Employment, Employee Participation & Mediation

Pay Transparency: 1 January 2027 Implementation Deadline May Not Be Achievable, but Preparing Remains Prudent

28 September 2026

At the beginning of September, the Dutch government indicated that implementing the new pay transparency rules by 1 January 2027 would be feasible. That date now appears less certain. According to the Dutch House of Representatives’ current schedule, the bill is not due to be debated in plenary until the second week of 2027. Both the House of Representatives and the Senate will then still need to consider the proposal. As a result, entry into force on 1 January 2027 no longer appears likely.

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Employment, Employee Participation & Mediation

When does a people issue become a board issue?

7 September 2026

Your best-performing executive may also be your biggest people risk. The numbers are excellent. Targets are being met. The business is growing. But people keep leaving the executive's team. HR receives informal concerns about leadership style. Employees say they do not feel comfortable speaking up. There is no formal complaint. No investigation. No established misconduct. So when should the board become concerned?

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