Aannemingsmaatschappij Van Gelder B.V. provides preparatory work for future residential areas and business sites. It takes care of the preparation of construction grounds, lays sewer systems and reconstructs roads and traffic intersections.

The contractor company Fens Beheer B.V. / Afezo specializes in sewer installation, infrastructural projects and construction site preparation. Many municipalities and water companies are amongst the clientele.

A.F.T. van der Hoek Beheer B.V. serves as holding company of Van der Hoek Isolatie Groep. This family business offers various services in the field of insulation.

BAM Services Nederland is a holding company it is affiliated with Royal BAM Group, an international construction company with various subsidiaries in the port area.

We are hydraulic engineers. We have been for 60 years. Contributing to better waterways and protecting people and hinterland from the water; that is what drives us.

Bouwbedrijf De Vlucht specializes in the restoration of pile foundations. This is done by constructing a new solid concrete floor supported by new concrete piles that are placed directly next to the old wooden piles.

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Bouwbedrijf Selie specializes in renovation, restoration, refurbishment, maintenance, foundation work and new construction in the Amsterdam region.