Monumentenwerf Amsterdam B.V. processes construction materials originating from historic buildings and pavings. Most of them are high-quality and durable materials that have been replaced during repair works, but can still be of valuable use.

PontMeyer is located in the Port of Amsterdam. The wholesale company operates a drive-in pick-up center for timber and construction materials. At this location, the company has a wide range of A brand timber, sheet material and hardware tools.

Roll Roy is a manufacturer and vendor of painting tools. The Amsterdam facility includes the head office and the paint roller factory, the only one in the Netherlands.

As a multidisciplinary construction company, Stiel Groep is active in real estate maintenance and renovation works. This concerns both residential and non-residential construction.

Struyk Verwo Infra Regio West is a specialist in public pavement projects. The business provides street-defining solutions that make the public space attractive, safe, accessible and sustainable.

Unica is an independent technical service provider. The company is specialized in energy, ICT, security and installation technology.

Van Mierlo Bouw & Ontwikkeling is a family-run business that specializes in the development, construction and renovation of real estate. The company also offers consulting services around these activities.

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.