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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionAu SgEugster Au AG
Eugster Au AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Eugster Au AG is a craft company offering metal construction, crane services, demolition (rückbau) and civil engineering works. The firm fabricates steel, stainless steel and aluminium structures including custom parts, performs excavations and utility works, carries out demolition and material recycling, and supplies a mobile flood-protection system; crane lifts up to 21 m/760 kg.

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Products & services

Industry:Building Construction
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4.0/5

Eugster Au AG

5
Metal construction
Metal construction in steel, stainless steel and aluminium; custom fabrications, surveying and (3D) planning, railings, handrails, canopies, staircases, balcony towers, privacy and wind protection, glazing.
Civil engineering
Civil engineering for excavations of all kinds, utility trench construction and specialist deep foundation work in cooperation with partners, for example for single- and multi-family houses or industrial workshops.
Deconstruction
Deconstruction with demolition work, partial demolition, dismantling and breaking-out; proper disposal and recycling of the deconstructed material.
Crane work
Crane work and lifting/positioning work up to 21 metres and 760 kg; material handling with special attachments such as glass suction systems and clamshell grab buckets for special jobs.
Flood protection
Mobile flood protection system made of aluminium by PREFA to protect doors, gates and windows against penetrating water.
Trust & reputation

ranQ Trust Score of Eugster Au AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 100% · As of October 2026

Eugster Au AG scores 72.5 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.79.224%
  • 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.58.610%
  • 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.70.08%
Eugster Au AG scores 76.5 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.70.212%
  • 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.70.07%
Eugster Au AG 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%
Eugster Au AG scores 3.5 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 35.0.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.6.74%
Qualifications+0.00

Eugster Au AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.9 out of 5 stars from 9 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.99
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 6, 2021Media
Eugster Metallbau mutiert zu Eugster Au AG
rheintal24.ch

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Location

Industriestrasse 28
9434 Au Sg
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-305.352.229
Founded
2020 · 6 years
Last commercial register change
November 24, 2020
Employees
11 to 20
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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