W.B.M. Machine Factory (1966)
- Special machines for building and road construction
- Concrete moulds up to concrete production installation
- Equipment for Petrochemical industry
WBM-Ammann Machine Factory (1972)
- Joint venture with Swiss Ammann
- Production of Chimneys
- Asphalt and Concrete production installations
- Prefab elements production installations
- Classifying installations
Machine Factory Stramproy (1983)
- Composting installations
- Biomass Drying installations
- Conveyor systems
- Waste/Minerals recycling installations
- Sand and Gravel classifying
Stramproy Group (1997)
- Large transport installations
- Petrochemical shut down
- Torrefaction pilot installation
Stramproy Contracting (2004)
- Thermal soil cleaning installation
- Waste recycling plant
- 2nd Torrefaction pilot installation
- Waste classifying installations
Materials, Granulate & Powder (2007-2010)
- 100% recycling building waste
- Classifying Ceramics, Granulates and cement
Stramproy Green Investments BV (2007-2013)
- Torrefaction plant
- CHP plant