The NEFA Foundation has published an investigative report which details the structure and activities of the Muslim Brotherhood in the Netherlands concluding:
In the Netherlands, a network of people linked mainly to the European fronts of the Muslim Brotherhood ideology have developed an extensive infrastructure, including umbrella organizations; charities; educational institutions; real estate related entities; and youth activities. This is not one single network but dosparate, yet overlapping networks. To work with different fronts has become a signature for the spread of the Muslim Brotherhood ideology in the West; the Netherlands is just another example of this.
The report provides a wealth of detail and mirrors activity occuring in many EU countries.