The demands on our clients are in a state of flux and are becoming increasingly complex. Treureva is one of a select group of state-supervised auditing firms. Our auditors are licensed as audit experts by the Federal Audit Oversight Authority (FAOA) and are very familiar with the constantly changing market conditions.


  • Statutory audits of financial statements according to the Swiss Code of Obligations, Swiss GAAP FER and IFRS
  • Audit of pension schemes and investment foundations
  • Foundation audits
  • Audits after restructuring or changes in capital
  • Appraisal and arbitration opinions
  • Special audits relating to financial crimes
  • Audit of internal control systems (ICS)

Your contact

Peter Rüegsegger
Head of audit
+41 44 267 17 03
Peter Rüegsegger

In the team since: 2019
lic. rer. pol., Certified auditor
Peter Rüegsegger heads the auditing division. He has long-standing experience in executing and managing complex international audit mandates. His main areas of expertise include auditing consolidated financial statements (Swiss GAAP FER/IFRS), preparing appraisal reports and developing internal control systems.