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GreenTech was built in 2012 by Dipl.-Ing. (FH) f. process and environment engineering Stefan T. Sziwek together with a team of spcialists to:
  • develop
  • plan

projects in the field of
  • Industrie
  • Technical construction as well as
  • Biomass with a focus on residual products / waste
    (slaughterhouse waste, bio-waste containers, sewage sludge, ...)

to implement them finally
  • time-
  • cost-
  • quality-


In the projects, GreenTech persues the aims of the investor, to guide them to success.
Project Development
GreenTech assesses your project idea and develops it with you until joint implementation
Project Management
GreenTech plans your project in cooperation with you while managing quality and costs
Construction Mgmt
With the GreenTech Construction Management (GT CM) System we monitor your project day by day