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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringLausanneKarakas et Français S.A.
Karakas et Français S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Karakas et Français S.A. is an engineering firm specialising in geotechnical and geological services, providing geotechnical investigations, geostructure design and dimensioning, environmental assessments, and on-site testing and measurements.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered12
Geotechnics
Soil investigation, development of a geotechnical model, geotechnical reports with technical recommendations, geotechnical monitoring of works.
Geostructures
Design and dimensioning of walls, retaining walls, shallow or deep foundations, tunnels and covered trenches; support to partners and construction management.
Geology
Site surveys, characterisation and prospecting, geological modelling, technical expertise, assessment of natural hazards, safety measures.
Environment
Contaminated sites, pedology, building pollutants, environmental construction monitoring.
Tests and Measurements
Laboratory tests, in-situ measurements, interpretation of measurements to characterise soils and monitor their behaviour.
Geothermal energy
Energy geostructures, geothermal boreholes, on-site investigations and monitoring, geothermal use of groundwater.
Natural hazards
Identification, assessment and mapping, safety measures, urgent intervention, support to the project owner.
Hydrogeology
Management and preservation of water resources, assessment of the impacts of projects, operation of groundwater, management and infiltration of clean water.
Numerical modelling
Simplified and advanced numerical approach, optimisation of variants, impact studies on the built environment, technical expertises.
Pedology
Pedological studies, soil protection concept, pedological monitoring of works, plot development.
Building pollutants
Building diagnostics, waste management concept and monitoring of remediation works, advice on the management of special waste.
Environmental construction monitoring
Environmental impact notices, SER specifications, implementation of environmental construction monitoring.
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4.2/5

Karakas et Français S.A.

Trust & reputation

ranQ Trust Score of Karakas et Français S.A.: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 88% · As of October 2026

Karakas et Français S.A. scores 53.3 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.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: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Karakas et Français S.A. scores 95.0 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%
Karakas et Français S.A. 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%
Karakas et Français S.A. scores 91.4 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 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Karakas et Français S.A. 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 1 customer reviews. The data basis is 88%, 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Avenue des Boveresses 44
1010 Lausanne
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.121.039
Founded
1994 · 32 years
Last commercial register change
September 21, 2026
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.95.03%
    • Full methodology

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