Many customers require our services. Satisfied customers in medium and large companies are the best proof of our performance. We strive to continually improve our offering.


  • Allianz
  • Bafima
  • Bundesakademie für öffentliche Verwaltung im Bundesministerium des Innern
  • Berner Fachhochschule
  • bwdigitronik
  • DER Touristik
  • E.ON
  • Eidgenösssische Bundesverwaltung im Auftrag des Informatiksteuerungsorgan des Bundes (ISB)
  • Emmi
  • Gemeinde Meilen
  • Givaudan
  • Helsana Versicherungen
  • Hochschuke für Wirtschaft Zürich (HWZ)
  • Kärcher
  • Kanton St. Gallen
  • LGT
  • Mainzer Stadtwerke
  • Postfinance
  • Profond
  • Ronal Group
  • Skyguide
  • Swisscom
  • Zürcher Hochschule für Angewandte Wissenschaften
  • Zürcher Kantonalbank

"The survey by the TWISK® checkups provided us with insights that enable us to plan future investments and campaigns better. Working together with TreeSolution gave us relevant input on security that we were able to implement immediately."

Daniel Graf
Federal IT steering Unit FITSU

Full Report (PDF) 

"We are very pleased with the exceptionally good results of the analysis and proud that we have a good information security culture. We now also know the issues for which we need to set the next priorities for employee awareness."

Stefan Mettler
IT security expert at Wegelin & Co
Full Report (PDF)

"Our information security project was a great success. TreeSolution supported us energetically and purposefully to increase the awareness of our employees in terms of information security. Thanks to TreeSolution we have achieved our goals and even exceeded them."

Stefan K. Burau
Clariden Leu, Head IT Governance / Security
Full Report (PDF)