You can contact us in various ways.
Are you looking for one of our experts?

Use our expert module
Are you looking for one of our offices?

Use our office search tool

Would you like to report a malfunction?

Call our service desk to get help as soon as possible.


+31 800 - 670 67 06
Mail your malfunction


+31 30 256 33 50
Mail your malfunction
Would you like to file a complaint?

We always aim to provide the highest quality service. Yet it may happen that we do not meet your expectations. In that case we would like to hear your experience. Send a letter to Colliers International Netherlands, to our CEO Dirk Bakker, Stadionplein 14, 1076 CM in Amsterdam. Or send us an email with your complaint.
Mail your complaint