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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,805 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesDiepoldsauhartmannpartner experts ag
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hartmannpartner experts ag

Summary

About the company

M. Hartmann Treuhand AG provides fiduciary, tax and audit services as well as business consulting, succession planning and real estate valuation. The firm handles bookkeeping, preparation of annual financial statements, VAT and fiscal representation, acts as an ABACUS distributor and performs audits as a revision expert approved by the federal audit oversight authority (RAB).

AI-generated
Offering

Products & services

Industry:Fiduciary Offices
✓ Offered5
Accounting and fiduciary services
Accounting, financial statements, business consulting, company formation and fiscal representation for companies, entrepreneurs and non-profit organisations; digital processes, VAT reporting, annual financial statements and interim financial statements.
Real estate valuation
Real estate valuation in Eastern Switzerland for owners and companies, as a supplementary fiduciary and advisory service.
Business consulting
Business consulting for business decisions, company valuation and development and implementation of succession strategies.
Company formation
Advice on choosing the legal form, company formation and, on request, time-limited or permanent mandates for the board of directors or management.
Fiscal representation
Advisory services and assumption of fiscal representation for companies with VAT-liable services in Switzerland.
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Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle4.84
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

May 1, 2026Media
Aus M. Hartmann Treuhand AG wird Hartmannpartner Experts AG
leaderdigital.ch
June 19, 2024Media
M. Hartmann Treuhand AG etabliert sich als Abacus-Partner
leaderdigital.ch
December 18, 2023Media
M. Hartmann Treuhand AG expandiert in den Bezirk Werdenberg
leaderdigital.ch

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Location

Bogenstrasse 6
9444 Diepoldsau
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.378.170
Founded
1999 · 27 years
Last commercial register change
May 1, 2026
Employees
11 to 20

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