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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryReal EstateReal Estate Project DevelopmentWittnauArthur Müller AG
Arthur Müller AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Arthur Müller AG provides construction services, manages real estate projects and rents construction equipment.

AI-generated
Offering

Products & services

Industry:Real Estate Project Development
✓ Offered3
Real estate projects
Real estate projects, in particular project development and supervision of projects; mentioned on the website as the managing director’s current business focus.
Construction services
Construction services around the externalised construction activities; listed on the website as a service still carried out by the managing director.
Rental of construction equipment
Rental of construction equipment for construction and site purposes; listed on the homepage as a current line of business.
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3.8/5

Arthur Müller AG

Trust & reputation

ranQ Trust Score of Arthur Müller AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Arthur Müller AG scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.68.224%
  • 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.17.610%
  • 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%
Arthur Müller AG scores 85.5 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.100.012%
  • 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%
Arthur Müller AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).85.022%
Arthur Müller AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Arthur Müller AG 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 1 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schulstrasse 8
5064 Wittnau

At a glance

Legal form
Corporation
UID
CHE-105.780.512
Founded
1967 · 59 years
Last commercial register change
July 2, 2021
Employees
1 to 10
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.
100.0
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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