About Mueller Stockli Treuhand AG

Our Story

Mueller Stockli Treuhand AG is a fiduciary and accounting firm based in Canton Zug. We provide bookkeeping, tax advisory, audit, payroll, and company formation services to over 1,000 clients — from single-founder startups to international holding companies.

Our firm was established by Alexander Mueller and Maria Stockli, two practitioners who shared a conviction that accounting services in Zug should be delivered with the same professional rigor expected in Zürich or London, but with the accessibility and responsiveness that smaller firms can offer.

We are certified members of EXPERTsuisse and registered with the Swiss Federal Audit Oversight Authority (RAB).

Our Values

Accuracy over speed. We would rather take an additional day to verify a number than submit a filing with an error.

Direct communication. When you call or email, you reach the person who handles your account.

Transparency. Our fees are fixed and published. If we identify a risk or error, we tell you immediately.

Local presence. We are physically based at Stockerstrasse 21, 6300 Zug — five minutes from Zug railway station.

Qualifications

EXPERTsuisse — leading Swiss professional organization for audit, tax, and fiduciary experts.

Schweizerische Treuhandkammer — Swiss Chamber of Fiduciaries.

RAB registration — Federal Audit Oversight Authority, authorizing ordinary and limited statutory examinations.

40+ hours of professional development annually per team member.