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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeBaselgsi Bau- und Wirtschaftsingenieure AG
gsi Bau- und Wirtschaftsingenieure AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of gsi Bau- und Wirtschaftsingenieure AG is the provision of services in the field of engineering and construction consulting, particularly in the areas of civil and special foundation engineering, pipeline construction, transportation infrastructure, water and wastewater management. This includes, among other things: construction consulting, organization, information and communication, engineering, construction project management and implementation, and expert opinions. The company offers these services to authorities and industrial companies and has its own team of engineers, construction managers and designers who plan, advise and implement projects.

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Products & services

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gsi Bau- und Wirtschaftsingenieure AG

Real Estate Project Development
✓ Offered5
Client advisory
Client advisory for authorities and industry, including project сопровождение, organization, information, communication and support in construction projects.
Engineering
Engineering for civil engineering works, focusing on earthworks and special construction, utility construction, transport infrastructure, as well as water and municipal wastewater construction.
Construction project management and delivery
Construction project management and delivery of civil engineering projects, from planning and coordination through to implementation.
Expert reports
Expert reports on construction and engineering topics, in particular in the context of civil engineering and infrastructure projects.
Organization, information and communication
Organization, information and communication in the context of construction projects, coordinated with project owners, authorities and industry.
Trust & reputation

ranQ Trust Score of gsi Bau- und Wirtschaftsingenieure AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 96% · As of October 2026

gsi Bau- und Wirtschaftsingenieure AG scores 54.3 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.66.724%
  • 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.27.910%
  • 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%
gsi Bau- und Wirtschaftsingenieure AG scores 89.3 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.70.07%
gsi Bau- und Wirtschaftsingenieure AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
gsi Bau- und Wirtschaftsingenieure AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

gsi Bau- und Wirtschaftsingenieure AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 2 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
4.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle4.52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Wallstrasse 8
4051 Basel
Opening hours
Mon
07:30 - 18:00
Tue
07:30 - 18:00
Wed
07:30 - 18:00
Thu
07:30 - 18:00
Fri
07:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.815.501
Founded
1974 · 52 years
Last commercial register change
April 4, 2025
Employees
11 to 20
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.100.06%
  • 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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