References

For building cleaning glass and facades:

PEDUS/DUSSMANN, Germany

ZEHNACKER, Germany

BOGDOL, Germany

ISS, Denmark

GROUPO EULEN, Spain

PEDUS/DUSSMANN, Germany

ZEHNACKER, Germany

BOGDOL, Germany

ISS, Denmark

GROUPO EULEN, Spain

References

For cleaning solar systems:

E.ON, Germany

JUWI GmbH, Germany

References

References for mobility safety / vehicle cleaning:

Deutsche Bahn

ÖBB-Personenverkehr-AG, Austria

Schweizerische Bundesbahnen AG

Rhätische Bahn AG, Switzerland

Deutsche Bahn

ÖBB-Personenverkehr-AG, Austria

Schweizerische Bundesbahnen AG

Rhätische Bahn AG, Switzerland