Accounting, tax consulting, auditing and consulting

We are a well established, growing trust company in Zurich. The support and advice of national and international clients in the areas of accounting, tax consulting, auditing and consulting is our core task.
We are a well established, growing trust company in Zurich. The support and advice of national and international clients in the areas of accounting, tax consulting, auditing and consulting is our core task.

Services

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Bookkeeping

Accounting and final consultation for your company.

Annual financial statementAccounts ReceivableAccounts PayablePayroll AccountingSecurities AccountingReal Estate AccountingFinancial Accounting LightValue-Added Tax (VAT)
Tax Advice

The tax laws are subject to constant change. We stay up-to-date for you and support you with our knowledge.

Value-Added Tax (VAT)
Auditing

As voluntary or statutory auditors, we ensure correct and legally compliant reporting.

Regular AuditsLimited AuditOther Statutory Audits
Consulting

We accompany you and your company in all phases of the business cycle.

ConsolidationReporting and Financial AnalysisSwiss GAAP FERRelocation to Switzerland
Outsourcing

We are happy to support you by taking over company tasks. Use our Know-How.

Temporary Employees

Skilled workers temporarily or permanently. We will provide you with step-by-step support at short notice.

News and Insights

21September2026

Das neue Transparenzgesetz (TJPG): Neue Pflichten, Fristen und deren Einhaltung

Author:Lenz Treuhand AG

Das neue Transparenzregister Schweiz bringt für eine Vielzahl von Unternehmen, insbesondere für die zahlreichen GmbHs und AGs, eine zusätzliche administrative Pflicht. Neben der erstmaligen Meldung wi...

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23July2026

Kostenrechnung für KMU – Transparenz und bessere Entscheidungen

Author:Lenz Treuhand AG

Eine Kostenrechnung für KMU schafft Transparenz über Kosten und bildet die Grundlage, um die Wirtschaftlichkeit von Unternehmensbereichen, Dienstleistungen oder Produkten zu beurteilen. Spätestens bei...

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13July2026

Herzlichen Glückwunsch – Marco Meier

Author:Lenz Treuhand AG

Mit grosser Freude gratulieren wir Marco zum erfolgreichen Abschluss als dipl. Treuhandexperte. Mit viel Engagement, Ausdauer und Fachkompetenz hat Marco diesen bedeutenden Meilenstein erreicht. Wir s...

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The
Lenz Team

Blerona Shabani Chartered Specialist in Accounting and Financial Management, Federal Diploma of Higher Education
Andrea Mohammed Fiduciary Services Associate
Alain Bienz – Partner Certified Fiduciary, Advanced Federal Diploma of Higher Education
Cansu Karabacak
Dilek Waser Certified Fiduciary, Federal Diploma of Higher Education / MAS in VAT/LL.M. VAT (Kaleidos FH)
Dominik Lenz – Partner Certified Fiduciary, Advanced Federal Diploma of Higher Education
Isabelle Suter – Partner Certified Fiduciary, Advanced Federal Diploma of Higher Education
Jeannine Rupp Fiduciary Services Associate
Joelle Sommer (in training) Certified Fiduciary, Federal Diploma of Higher Education
Loela Honegger Certified Fiduciary, Federal Diploma of Higher Education
Marco Frauenknecht – Partner Certified Fiduciary, Advanced Federal Diploma of Higher Education
Marco Meier Certified Fiduciary, Advanced Federal Diploma of Higher Education
Micha Hummel Certified Fiduciary, Federal Diploma of Higher Education
Pascal Romy (in training) Certified Fiduciary, Federal Diploma of Higher Education
Penda Coker Advanced Federal Diploma of Higher Education in Business Administration
Peter Lenz – Partner Grad. Specialist in Accounting and Controlling, Company Founder (1978)
Rahel Profos Certified Hôtelière-Restauratrice HF/SHL | CAS Payroll Expert (ZHAW)
Sabrina Kumpf Certified Fiduciary, Advanced Federal Diploma of Higher Education
Vanessa Correia (in training) BSc Kalaidos FH in Business Psychology
Zeno Baldegger (in training) Commercial Employee, Federal Diploma of Vocational Education and Training
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