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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsZofingenWilhelm + Wahlen Bauingenieure AG
Wilhelm + Wahlen Bauingenieure AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Wilhelm + Wahlen Bauingenieure AG is a civil engineering firm that plans and provides technical support for structural and infrastructure projects. The company works in building construction, civil and bridge engineering, seismic safety and structural maintenance, offering structural design, condition assessments, strengthening measures, construction supervision and client advisory services.

AI-generated
Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered5
Building construction
Load-bearing structures in reinforced concrete, prestressed concrete, timber and steel for single- and multi-family houses, industrial and commercial buildings, public buildings, refurbishments and conversions.
Civil engineering
Road construction, rail construction, sewer systems, utility lines, heat/cold district heating and cooling networks, noise protection installations, excavation pits, temporary excavation support, deep foundations as well as surveying work and planning tasks.
Bridge construction
Load-bearing structures in reinforced concrete, prestressed concrete, timber and steel for road and railway bridges, pedestrian bridges, underpasses and retaining structures, including structural checks and consulting.
Earthquake safety
Assessment of bridges and buildings, calculation-based proof of earthquake safety, planning and execution of strengthening measures, specialist expert assessments and earthquake reports.
Structural preservation
Condition analyses and measures concepts for building construction, civil engineering and bridge construction, structural checks, conversions, change of use, repairs and strengthening.
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3.8/5

Wilhelm + Wahlen Bauingenieure AG

Trust & reputation

ranQ Trust Score of Wilhelm + Wahlen Bauingenieure AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Wilhelm + Wahlen Bauingenieure AG scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Wilhelm + Wahlen Bauingenieure AG scores 87.1 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.82.07%
Wilhelm + Wahlen Bauingenieure 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%
Wilhelm + Wahlen Bauingenieure AG scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wilhelm + Wahlen Bauingenieure AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Junkerbifangstrasse 2
4800 Zofingen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-152.893.441
Founded
2009 · 17 years
Last commercial register change
November 24, 2009
Employees
21 to 50
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.76.06%
  • 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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