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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsFüllinsdorfERNE AG Bauunternehmung
ERNE AG Bauunternehmung Logo
Verified· 3 sourcesTrust Score
Summary

About the company

ERNE AG Bauunternehmung is a construction company that acts as a building contractor and as a general and total contractor, providing services in building construction, civil engineering, renovation and asset maintenance. Its scope of work also includes water engineering, industrial and commercial construction, demolition and concrete drilling, project delivery as a general contractor (ERNEplus) and digital planning methods such as BIM.

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Products & services

Industry:General ContractorsSite Preparation
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4.3/5

ERNE AG Bauunternehmung

✓ Offered5
Conversion and renovation
Conversion work, renovations and refurbishments for existing buildings; planning and execution, client masonry works, building protection as well as drilling and cutting concrete.
General and total contractor (ERNEplus GU/TU)
Comprehensive services as a general contractor or total contractor; consulting, development and planning, coordination, turnkey implementation as well as taking over project responsibility.
Building construction
New construction, industrial, commercial, residential and data centre construction as well as water engineering in the building construction sector.
Civil engineering
Road construction, infrastructure construction and special deep construction for building projects in civil engineering.
Construction specialties
Client masonry works, concrete drilling, building protection and demolition for supplementary work on construction sites and in existing buildings.
Trust & reputation

ranQ Trust Score of ERNE AG Bauunternehmung: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

ERNE AG Bauunternehmung scores 73.6 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.77.424%
  • 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.52.910%
  • 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.88.08%
ERNE AG Bauunternehmung scores 78.4 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.75.012%
  • 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.90.07%
ERNE AG Bauunternehmung scores 85.0 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).85.022%
ERNE AG Bauunternehmung scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ERNE AG Bauunternehmung reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 7 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
4.9
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.97
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schneckelerstrasse 12
4414 Füllinsdorf

At a glance

Legal form
Branch
UID
CHE-378.169.307
Founded
2019 · 7 years
Last commercial register change
June 13, 2019
Employees
51 to 100
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.
76.0
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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