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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZurichWGI AG
WGI AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

WGI AG is a structural engineering firm providing structural design and civil engineering services, including planning and project design, project and construction management, and technical studies and expert opinions. The practice works on building projects and renovations, participates in competitions, and applies digital planning methods such as BIM.

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Products & services

Industry:Technical Consulting & Engineering
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WGI AG

✓ Offered
11
Structural engineering design
Static and structural design for buildings, civil engineering and infrastructure; development of structural concepts, calculations, optimisation of material and resource use, as well as earthquake and vibration analyses.
Bridge construction
Development and structural calculation of bridge load-bearing systems made of steel, timber, concrete or stone; digital simulations, design optimisation, sustainable construction methods, as well as repair and refurbishment.
Special deep foundation engineering
Ground investigations, planning and calculation of deep foundations, excavation closures, shoring structures, slope stabilisation and ground improvement for challenging site conditions.
Condition assessment
Structural inspections, non-destructive testing methods, material analyses, structural monitoring, long-term measurements, and development of rehabilitation concepts to assess load-bearing structures.
Conversion and strengthening
As-built surveys and structural analyses, planning of strengthening measures, integration of new use concepts, digital modelling and sustainable upgrading of existing buildings and structures.
Building envelope design
Planning and development of façade concepts, energy-efficient building envelope solutions, material consulting, sustainability assessment, building-physics analyses and integrated façade structural solutions.
Sustainability planning
Life cycle assessments, CO2 reduction, material selection, resource conservation, optimisation of energy efficiency, certification consulting and circular construction for building projects.
Fire protection
Fire protection concepts and compliance documentation, evacuation and rescue concepts, fire simulations, risk analyses, advice on material selection and fire resistance, and implementation of fire protection measures.
Developments
Concept development for construction projects, feasibility studies, risk analyses, digital planning methods, simulations and development of sustainable building concepts using new technologies.
Studies and expert reports
Structural analyses, risk assessments, cost-benefit and feasibility studies, sustainability evaluations, material and damage analyses, as well as independent expert reports.
Competitions
Support for competitions from the initial concept idea through feasibility studies to the realisation of innovative, sustainable and cost-effective building projects.
Trust & reputation

ranQ Trust Score of WGI AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

WGI AG scores 67.8 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.73.224%
  • 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.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.70.08%
WGI AG scores 70.4 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.64.612%
  • 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%
WGI 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%
WGI AG 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

WGI AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 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
4.7
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.77
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hier entsteht die Karte
Giesshübelstrasse 30
8045 Zurich

At a glance

Legal form
Corporation
UID
CHE-468.097.842
Founded
2021 · 5 years
Last commercial register change
September 19, 2025
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.70.03%
    • Full methodology

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