architectural, construction, engineering and inspection services.

refuse collection services.

tree-maintenance services, tree care measures in the freiburg directorate of the federal agency for real estate tasks (voek 082-22).

building-cleaning services

information systems and servers

germany palling: architectural, engineering and planning services.

engineering design services.

germany-kassel: ventilation and air-conditioning installation work.

germany-frechen: construction work

germany-augsburg: construction work.