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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsMontreux 1Willi Ingénieurs SA
Willi Ingénieurs SA Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Willi Ingénieurs SA is the provision of services in the field of civil engineering, particularly in the planning, design and rehabilitation of buildings, infrastructure and other engineering structures.

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Offering

Products & services

Industry:Civil Engineering FirmsConstruction & Project ManagementGeneral Contractors
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3.9/5

Willi Ingénieurs SA

✓ Offered6
Structural engineering
Engineering for load-bearing structures in concrete, timber, steel and re-use; feasibility studies, design, calculations and sizing, tender documents, construction supervision.
Civil engineering and transport infrastructure
Studies and delivery of road and rail infrastructure, roundabouts, parking lots, retaining walls, utility networks, stations and multimodal platforms.
Construction management
Site management, planning and coordination of trades, monitoring costs, schedules and quality, handling tendering and acceptance of works.
Asbestos diagnostics
Identification of asbestos-containing materials before work or demolition, sampling and analysis, reports, support for submissions to the authorities, management of asbestos removal.
Condition surveys before and after works
Documentation of the initial and final condition of neighbouring buildings, photographic records and inspection reports, interim monitoring if necessary, prevention of disputes.
High-end residential construction
Structural engineering for villas and high-end residential units, from design to execution, including calculations, BIM, material selection and site supervision.
Trust & reputation

ranQ Trust Score of Willi Ingénieurs SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of October 2026

Willi Ingénieurs SA 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%
Willi Ingénieurs SA 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%
Willi Ingénieurs SA 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%
Willi Ingénieurs SA scores 32.2 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 35.54.34%
  • 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

Willi Ingénieurs SA reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. 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.

Press

Media

December 1, 2014Media
Depuis 1983, Daniel Willi et ses ingénieurs redessinent le canton
24heures.ch

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Location

Avenue des Alpes 43
1820 Montreux 1
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.869.327
Founded
1988 · 38 years
Last commercial register change
January 15, 2024
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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