Co-operation with 5xy (5xy.eu) is starting to get shape. About four years ago, we have started on the initiative of Geert Vandaelen. At that time we met at the New Year reception of the chamber of commerce. In the first place we started with 4 self-employed persons. After sharing experiences and ideas, we made appointments. Finally, two of us are left. Our persevering is starting to become successful. This way we could pass on work, because the other person was already active at a project. Thus together we are active with acquisition and visiting companies. Exchange of experience remained. Customers’ profit on this cooperation: we complete each other; we are exchangeable and have a large network with several disciplines. Briefly: your increase in productivity does not depend on a single person with us.