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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesThônexab associés holding sa
ab associés holding sa Logo
Verified· 3 sourcesTrust Score
Summary

About the company

ab associés holding sa provides engineering services in structural engineering, geotechnics, special foundation works and environmental engineering. Services include in-situ and laboratory testing, deep geothermal solutions, soil remediation and asbestos removal, as well as exterior works and façade design.

AI-generated
Offering

Products & services

Industry:Holding Companies
✓ Offered7
Engineering consulting services
Engineering consulting services for infrastructure, buildings and the environment, with development of complex projects and support for clients in French-speaking Switzerland and neighbouring France.
Buildings and civil engineering structures
Studies, design and execution of load-bearing structures in reinforced and prestressed concrete, steel structures, transformations, strengthening, bridges, tunnels and pedestrian walkways.
Timber construction
Timber structure studies, floor reinforcement, raising existing buildings and construction of multi-storey buildings.
Civil engineering and infrastructure
Design, construction and rehabilitation of sewerage and utility networks, road works, parking lots, paths for soft mobility, squares and outdoor facilities.
Geotechnics and special works
Ground investigation, geotechnical reports, in-situ and laboratory tests, excavation enclosures, slope stabilisation, shallow and deep foundations, soil strengthening.
Geothermal energy
Vertical geothermal boreholes, borefields, energy piles and geothermal doublets with pumping from the aquifer, including feasibility studies, permits and construction supervision.
Environment
Environmental impact studies, expertise on pollution of soil and groundwater, environmental monitoring during project execution, diagnosis of pollutants in buildings and monitoring of deconstruction.
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4.1/5

ab associés holding sa

Trust & reputation

ranQ Trust Score of ab associés holding sa: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

ab associés holding sa scores 57.5 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.60.624%
  • 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.55.910%
  • 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%
ab associés holding sa scores 85.5 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.55.07%
ab associés holding sa 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%
ab associés holding sa scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ab associés holding sa reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 8 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
4.1
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.18
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Chemin de la Mousse 80
1226 Thônex
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 - 14:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-113.967.277
Founded
2007 · 19 years
Last commercial register change
July 12, 2023
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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