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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,194 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesWinterthurwitreva & Thalmann Treuhand AG
witreva & Thalmann Treuhand AG Logo
Verified· 3 sources

witreva & Thalmann Treuhand AG

Summary

About the company

The company provides comprehensive services in the areas of auditing, corporate consulting, financial and accounting, human resources and payroll, tax consulting, as well as outsourcing and administration. The core activity of the company lies in advising and supporting companies, organizations, and private individuals in these areas, with a focus on optimizing business processes, creating financial and accounting processes, managing trust mandates, and conducting audits.

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
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✓ Offered9
Finance and Accounting
Financial bookkeeping, annual and interim financial statements, accounts receivable and payable bookkeeping, fixed asset accounting, VAT declarations, budgeting as well as liquidity and financial planning.
Auditing
Statutory and restricted audits, special audits, internal audits on assignment, as well as audits for companies, non-profit organizations and public administration.
Tax Advisory
Tax advice for companies and private individuals as part of fiduciary services.
HR and Payroll
Payroll accounting, personnel administration and other payroll-related services for trades, companies, non-profit organizations and public administration.
Management Consulting
Advisory services related to financial reporting, internal control systems (ICS), company incorporations, reorganizations, changes in share capital, mergers, restructurings and other business-related matters.
Outsourcing Administration
Outsourced administrative tasks, organizational support and ongoing administrative relief for companies.
External Financial Accountant / Ad Interim Assignments
Temporary assumption of financial accounting functions and time-limited assignments as an external specialist.
External CFO / External HRM / Ad Interim Assignments
Temporary assignments in CFO, HRM and management functions, as well as operational support for companies and non-profit organizations.
Sparring Partner
Sparring and expert exchange for executives and organizations in the business and fiduciary environment.
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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Location

Technikumstrasse 92
8400 Winterthur
Opening hours
Mon
08:00 - 12:00, 13:30 - 16:00
Tue
08:00 - 12:00, 13:30 - 16:00
Wed
08:00 - 12:00, 13:30 - 16:00
Thu
08:00 - 12:00, 13:30 - 16:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-157.557.542
Founded
2021 · 5 years
Last commercial register change
January 19, 2026
Employees
21 to 50

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