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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringWettswilKorroexpert GmbH
Korroexpert GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Korroexpert GmbH is to advise, analyze and support building owners, investors, authorities, engineering offices, steel construction, corrosion and fire protection companies in the implementation of corrosion protection and fire protection projects for steel and concrete structures, particularly in the field of high-rise steel buildings, industrial buildings, infrastructure buildings and other specialized structures.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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Korroexpert GmbH

✓ Offered4
Advisory in corrosion and fire protection
Advice, support and supervision of clients, investors, authorities and engineering offices for corrosion protection and fire protection projects for steel and concrete structures.
Analysis
Analysis of corrosion protection and fire protection projects for steel and concrete structures, as part of project support and implementation.
Quality assurance
Quality assurance for corrosion protection and fire protection projects in steel and concrete structures, in particular in construction and infrastructure projects.
Project supervision
Supervision of corrosion protection and fire protection projects for steel and concrete structures, from planning to implementation.
Trust & reputation

ranQ Trust Score of Korroexpert GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Korroexpert GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Korroexpert GmbH scores 70.2 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.55.07%
Korroexpert GmbH scores 83.3 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).83.322%
Korroexpert GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Oberhausenstrasse 61
8907 Wettswil

At a glance

Legal form
Limited Liability Company
UID
CHE-431.810.103
Founded
2020 · 6 years
Last commercial register change
December 1, 2020
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.
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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