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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringLausanneCSD Ingénieurs SA
CSD Ingénieurs SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

CSD Ingénieurs SA provides engineering and environmental consulting services, including water management, energy and renewable systems, geotechnics and foundation engineering, contaminated site remediation, waste treatment and decontamination, and transport infrastructure engineering.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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CSD Ingénieurs SA

✓ Offered8
Consulting and Planning
Consulting for construction, environmental and energy projects, project planning across all phases, variant studies, permitting support, audits, certifications and expert assessments.
Environmental Studies and Environmental Construction Supervision
Environmental impact assessments, environmental reports, risk assessments, ecological and pedological supervision, site monitoring, waste and noise checks, and resource analyses.
Infrastructure Engineering
Planning and project management for road and rail projects, port and underwater works, water intakes, reservoirs, distribution networks, deconstruction planning, project management and site supervision.
Geology and Geotechnics
Site investigations, borehole surveys, 3D modelling, soil and rock analysis, geotechnical design, retaining works and excavations, foundations, tunnels and natural-hazard assessment.
Building and Energy Technology (HVAC/S)
Planning of heating, ventilation, air-conditioning and sanitary systems, energy concepts, building automation, energy analyses, Minergie standards, renewable energy and commissioning.
Building Physics and Acoustics
Sound, thermal and moisture protection, room acoustics, daylight analysis, thermal and hygrothermal simulations, summer heat protection, site measurements and construction supervision.
Water Management and Hydrogeology
Protection of groundwater, surface water and springs, water protection zones, databases and maps, measurements and monitoring, hydrological supervision, groundwater modelling and safety analyses.
Waste Management and Treatment
Waste concepts, collection and transport logistics, recycling studies, landfill planning and operation, disposal logistics, site assessments, environmental monitoring and treatment facilities.
Trust & reputation

ranQ Trust Score of CSD Ingénieurs SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

CSD Ingénieurs SA has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
CSD Ingénieurs SA scores 99.0 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.96.07%
CSD Ingénieurs SA scores 83.3 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).83.322%
CSD Ingénieurs SA 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

CSD Ingénieurs SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

Knowledge

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Comparisons

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Secure profile

Location

Chemin de Montelly 78
1007 Lausanne

At a glance

Legal form
Corporation
UID
CHE-101.465.738
Founded
1991 · 35 years
Last commercial register change
October 1, 2026
Employees
101 to 500
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.100.03%
    • Full methodology

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