Quality, Health, Security

Messerli’s ambition is to become the Swiss leader in the cleaning sector, by focusing on the happiness and well-being of its employees and customers, as well as on technological innovation.


Our organisation is proud to hold two internationally recognised certifications: ISO 9001 and B Corp.

Our commitment to quality and continuous improvement ensures that our services meet the highest standards to ensure the satisfaction of our customers and the safety of our employees.

B Corp certification is a mark of our social and environmental responsibility, demonstrating our commitment to the well-being of society and the planet. Together, these certifications reflect our commitment to being a sustainable company, focused on quality and responsibility, while offering exceptional value to our customers.


At Messerli, the health and well-being of our employees are a top priority. We invest in safety training programmes, state-of-the-art protective equipment, and optimal working conditions because we care about our employees. We firmly believe that a healthy and fulfilled team is essential for our success and in providing the best service to our customers.


Messerli’s health and safety policy is based on 4 pillars:

  • Compliance with the law and the Collective Labour Agreement.
  • On-site risk management.
  • Transparency in the exchange of information with our teams and customers.
  • Collaboration with specialist health and safety bodies (SUVA, OCIRT).