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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryFinance & InsuranceAccountantMastrilsHartmann Trust GmbH
Hartmann Trust GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hartmann Trust GmbH provides fiduciary and tax advisory services to individuals and businesses. Its services include bookkeeping, administrative and back-office support, management of condominium properties and rental real estate, and assistance with property purchases and sales.

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Products & services

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3.8/5

Hartmann Trust GmbH

✓ Offered8
Tax advisory
Advice on all tax matters for employed persons, self-employed persons and legal entities; including tax returns and optimisation proposals.
Bookkeeping
Takeover of bookkeeping with Abacus, compatible for Abaninja users, including connection via Bexio.
Administration / back office
Taking over part or all of the administration; digital solutions for information and to relieve day-to-day workload.
STWEG management
Management of condominium ownership groups (STWEG) with annual accounting, allocation and technical support.
Rental properties
Management of individual apartments, houses, commercial properties and entire residential buildings for owners.
Real estate purchase / sale
Support with the purchase and sale of real estate; on request, taking over the entire process with powers of attorney.
Conciliation and advice in real estate law
Conciliation in disputes between owners or tenants, as well as advice focused on real estate law.
Cloud document storage
Secure storage of files in the cloud with user access for customers.
Trust & reputation

ranQ Trust Score of Hartmann Trust GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 96% · As of November 2026

Hartmann Trust GmbH scores 56.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.73.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Hartmann Trust GmbH scores 74.1 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.79.212%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Hartmann Trust GmbH scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Hartmann Trust GmbH scores 5.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.5.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hartmann Trust GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hüseraweg 18
7303 Mastrils

At a glance

Legal form
Limited Liability Company
UID
CHE-181.440.834
Founded
2018 · 8 years
Last commercial register change
July 19, 2024
Employees
1 to 10

Active in 1 of 26 cantons

  • GRGrisons
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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