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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementFrauenfeldH. Wellauer AG
H. Wellauer AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

H. Wellauer AG is a construction company focused on road construction, civil engineering and special civil engineering. Its services also include its own gravel works and transport services.

AI-generated
Offering

Products & services

Industry:Construction & Project Management
✓ Offered5
Road construction
Road upgrades, maintenance and renovation; asphalt surfacing, paving and landscaping works for squares, paths, green spaces and playgrounds.
Civil engineering
Utility connections with gas, water, power, telecommunications and wastewater lines; earthworks, excavation, backfilling, slope stabilisation, ground stabilisation and hydraulic engineering.
Special deep construction
Anchoring works, nail walls and shotcrete, Rühl walls, micropiles, sheet piling, as well as groundwater lowering using wellpoint or filter well systems.
Gravel works
Production of gravel-sand components for road construction, concrete and road surfacings; extraction of gravel from our own pits with land reclamation and declaration of excavated material.
Transport
Transport of large and heavy construction equipment with low-bed trailers, plus crane work and transport of smaller construction machines with our own crane truck.
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3.9/5

H. Wellauer AG

Trust & reputation

ranQ Trust Score of H. Wellauer AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of October 2026

H. Wellauer AG scores 56.1 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.58.324%
  • 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.55.910%
  • 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.50.08%
H. Wellauer AG scores 88.8 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%
H. Wellauer AG scores 86.7 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).86.722%
H. Wellauer AG scores 22.2 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 35.34.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

H. Wellauer AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 8 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
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle48
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 28, 2015Media
Wie der Vater so der Sohn
thurgauerzeitung.ch

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Comparisons

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Location

Zürcherstrasse 354
8500 Frauenfeld
Opening hours
Mon
07:30 - 12:00, 13:30 - 18:00
Tue
07:30 - 12:00, 13:30 - 18:00
Wed
07:30 - 12:00, 13:30 - 18:00
Thu
07:30 - 12:00, 13:30 - 18:00
Fri
07:30 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.775.244
Founded
1954 · 72 years
Last commercial register change
January 27, 2026
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.100.03%
    • Full methodology

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