Fact Sheet Dr. Rietmann & Partner AG, Wirtschaftsprüfer und Steuerberater

Average engagement duration: 12.9 years (max.: 34 years)

Total number of statutory audit clients: 317 (Ranked #27 in Switzerland)

Change in number of audit engagements: +12 (since 31.12.2025), +12 (over the last 12 months)

Details regarding the distribution of the audit engagements across legal forms and cantons are depicted in the table below.

This audit firm is recorded as statutory auditor for 134 deleted entities. These are not included in the table above.

Display client list

Network:

• MOORE Zürich AG (CHE-105.832.468), 1 audit engagements
• MOORE SWITZERLAND REFIDAR SA (CHE-101.269.485), 189 audit engagements
• MOORE ST. GALLEN AG (CHE-103.993.333), 0 audit engagements
• MSZ Group AG Zug (CHE-114.292.387), 144 audit engagements
• MOORE STEPHENS LUZERN AG (CHE-436.958.983), 80 audit engagements

Total number of audit engagements across the network: 731

Further connections:

• Giroud AG, Treuhand- und Revisionsgesellschaft (CHE-101.018.670), 0 audit engagements
• Stieger + Partner Revisions AG (CHE-102.057.997), 100 audit engagements
• MISolutions AG (CHE-105.518.078), 16 audit engagements
• Dascon AG (CHE-106.823.880), 40 audit engagements
• advanto wirtschaftsprüfung ag (CHE-107.795.275), 75 audit engagements
• OREEX AG (CHE-179.403.545), 18 audit engagements
• MSZ Group AG Zürich (CHE-476.423.429), 13 audit engagements