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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringGeneva3E Ingénieurs Sàrl
3E Ingénieurs Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of 3E Ingénieurs Sàrl is the provision of engineering services in the fields of energy, water, and environment. Specifically, this includes: * Energy: Audits, consulting, and planning in the area of building energy efficiency, including the creation of energy concepts, the implementation of energy audits, and support for the implementation of energy efficiency measures. * Water: Consulting and planning in the area of water supply and disposal, including the implementation of studies and analyses to optimize water use. * Environment: Consulting and planning in the area of environmental planning, including the implementation of environmental studies and analyses, the creation of environmental concepts, and support for the implementation of environmental protection measures. The company offers its services to both private and public clients, including architects, property managers, municipalities, and cantons.

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Products & services

Industry:Technical Consulting & Engineering
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3E Ingénieurs Sàrl

✓ Offered12
Écoconseil
Écoconseil for villa owners, data analysis, on-site visit, report on the building context, legal requirements and boiler replacement.
Cantonal Building Energy Certificate (CECB)
Cantonal Building Energy Certificate, standardized thermal balance, issuing the energy label for residential, administrative or school buildings.
CECBPlus advisory report
CECBPlus advisory report, study of renovation variants based on the CECB, cost estimates of investments, energy savings, maintenance, subsidies and legal constraints.
Heat expenditure index (IDC)
Calculation of the IDC to benchmark a building’s energy consumption against legal thresholds and for monitoring energy policy.
Building energy concept
Study defining the thermal envelope, heating, ventilation and, at times, cooling, with variants analysed in energy, economic and environmental terms.
Studies for replacing heat generation
Studies to replace heat generation, analysis of the site and the building, comparison of variants from legal, environmental and technical-economic perspectives.
Building permit dossiers
Preparation of energy dossiers for building permits, including plans, thermal or electrical calculations and forms according to the project.
Minergie certifications
Support and certification dossiers for Minergie, Minergie-P, Minergie-A and Minergie-ECO for new builds and renovations.
Subsidy application dossiers
Preparation of subsidy application dossiers for energy-saving measures in buildings, with supporting documents related to the work and permits.
Owner's project management support
Owner's project management support for energy renovation projects of buildings, decision support and coordination of the process steps.
Energy monitoring and CO2 emissions
Energy monitoring and CO2 emissions for real-estate portfolios, with overall indicators to guide the renovations.
Territorial energy planning
Territorial energy planning for urban analyses, future needs, energy supply and framework conditions for infrastructures.
Trust & reputation

ranQ Trust Score of 3E Ingénieurs Sàrl: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 54% · As of October 2026

3E Ingénieurs Sàrl 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%
3E Ingénieurs Sàrl scores 67.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
3E Ingénieurs Sàrl 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%
3E Ingénieurs Sàrl scores 6.6 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

3E Ingénieurs Sàrl reaches a ranQ Trust Score of 3.9 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.

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Location

Rue François-Versonnex 15 BIS
1207 Geneva

At a glance

Legal form
Limited Liability Company
UID
CHE-452.561.029
Founded
2021 · 5 years
Last commercial register change
January 24, 2024
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.
88.0
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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