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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsKoppigenBill Weyermann Partner AG
Bill Weyermann Partner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bill Weyermann Partner AG is the provision of engineering services in civil and structural engineering, including special foundation engineering and cadastral surveying.

AI-generated
Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered12
Structural design
Structural design for residential buildings, commercial and industrial buildings, public buildings, steel construction and steel-concrete composite construction; in addition, retaining walls, foundations and BIM.
Renovation & preservation
Renovations, conversions, change of use and earthquake strengthening for existing structures.
Traffic route construction
Road construction, traffic guidance, engineering structures and Road-Safety-Audit in civil engineering deepworks.
Water engineering
River and stream works, diversions, hydrological structures and renaturalisation.
Infrastructure development & urban drainage
Utility line planning, infiltration measures and capacity sizing for development and drainage systems.
Excavation shoring
Slope calculations, soil nailing walls, sheet piling walls, Rühl walls and BIM to Field for secured construction pits.
Foundations
Pile foundations, settlement calculations and soil stabilisation for subsoil and foundations.
Earthquake engineering
Compliance factors, proportionality calculations, static measures and site supervision for earthquake-related issues.
Condition assessments
As-built documentation and crack reports for recording the structural condition.
Client advisory
Feasibility studies, impact analyses, capacity sizing and building permit checks for civil engineering.
Surveying
GPS surveys, utility line surveying and terrain surveys for utility cadastre and construction projects.
Data management
3D cadastre updates, cadastre information and infiltration cadastre for utility cadastres.
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4.2/5

Bill Weyermann Partner AG

Trust & reputation

ranQ Trust Score of Bill Weyermann Partner AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Bill Weyermann Partner AG scores 65.9 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.78.124%
  • 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.49.510%
  • 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%
Bill Weyermann Partner AG scores 92.3 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%
Bill Weyermann Partner 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%
Bill Weyermann Partner AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bill Weyermann Partner AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 6 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

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Secure profile

Location

Hauptstrasse 29
3425 Koppigen

At a glance

Legal form
Corporation
UID
CHE-113.548.905
Founded
2007 · 19 years
Last commercial register change
August 8, 2025
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.
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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