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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesMetalworkBonaduzArno Stiefenhofer AG
Arno Stiefenhofer AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Arno Stiefenhofer AG is metal, container and steel construction, particularly the manufacture and assembly of containers, tanks, water supply systems, metal structures and special plants. The company also offers services such as consulting, planning, design, production, assembly and maintenance.

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Service area

Offering

Products & services

Industry:Metalwork
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Arno Stiefenhofer AG

✓ Offered6
Tank construction
Planning, engineering and fabrication of small and large tanks made of steel and stainless steel; cubic and cylindrical tanks, storage units, pellet tanks, special tanks and custom-made equipment.
Water supply
Stainless-steel components for drinking-water systems and reservoirs; well covers, well chambers, piping and fittings, as well as prefabricated drinking-water reservoirs made to measure.
On-site welding
Welding work directly on the construction site for tanks, storage units, piping and special structures; suitable for tight space conditions and hard-to-access installation locations.
Sheet and profile processing
Cutting, round bending and welding of sheet metal and profiles; special parts according to drawings, small production runs, one-off custom fabrication, as well as repairs and modifications to existing metal components.
Special constructions
Custom welded structures and special fabrications made of steel or stainless steel according to customer drawings, including tailor-made solutions for additional plant components.
Metal construction
Steel and metal construction for building, industry and municipal services; fabrication of components and customer-specific metal structures from structural steel as well as V2A and V4A stainless steel.
Trust & reputation

ranQ Trust Score of Arno Stiefenhofer AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of November 2026

Arno Stiefenhofer AG scores 75.5 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.75.024%
  • 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.61.010%
  • 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.95.08%
Arno Stiefenhofer AG scores 89.3 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.70.07%
Arno Stiefenhofer 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%
Arno Stiefenhofer AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Arno Stiefenhofer AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 10 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
4.7
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle4.710
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Industriestrasse 1
7402 Bonaduz
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 13:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-115.722.924
Founded
2010 · 16 years
Last commercial register change
August 24, 2026
Employees
11 to 20

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.
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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