Your Team

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Our co-workers

Our people are central to everything we do. At Callens, Pirenne, Theunissen & C° we are committed to recruiting, developing, and retaining the right people. Our experienced and qualified employees have been guaranteeing continuity and top quality since 1936. They think along with the customer, they provide innovative solutions, and never lose sight of a result-oriented approach.

At Callens, Pirenne, Theunissen & C° we believe that every staff member is important and we ensure there is a healthy work-life balance. We have our own party committee that regularly organises activities so that colleagues also have the opportunity to get to know each other at informal events.

In addition, we offer various training opportunities enabling our employees to grow, both professionally and personally.

Our directors and partners

Throughout the years, Callens, Pirenne, Theunissen & C° has built up unique expertise in the professional support of local and international customers, and this in almost all sectors.

Large enough to be your expert advisors
Yet small enough to care


boudewijn callens
Boudewijn Callens

Managing Partner

philip callens
Philip Callens

Managing Partner

ludo caris
Ludo Caris
an de ceuster
Ann De Ceuster
guy meerbergen
Guy Meerbergen
ken snoeks
Ken Snoeks
jan van brabant
Jan Van Brabant
Lieven Van Brussel
Lieven Van Brussel
gorik van den bergh
Gorik Van den Bergh


Baudoin Theunissen
Baudouin Theunissen
Cecile Theunissen
Cécile Theunissen
Gonzague Lepine
Gonzague Lépine
Stéphane Rosier


Marc Maris
Marc Maris


Günther Adins
Günther Adins