Van Deudekom Plastics B.V. manufactures rooflight systems. The products include skydomes, ventilation elements and smoke and heat exhaust ventilation systems. They are mostly sold through a network of dealers.

Van Wijk Glashandel is a vendor of glass products. The company is part of Van Wijk Houtindustrie. This company supplies windows, doors, frames and sliding windows made of timber.

Van der Velden Rioleringsbeheer Amsterdam BV provides various sewage management services. The company takes care of declogging, cleaning and inspecting sewer systems.

Verwater is a global contractor in industrial and petrochemical installations, specialized in tank maintenance and construction.