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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIT & CommunicationSoftware DevelopmentLausanneE4tech S.àr.l.
E4tech S.àr.l. Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Consulting in the fields of energy, environment and building physics.

Commercial register, canton of VD·As of July 27, 2026View on Zefix
Offering

Products & services

Industry:Software Development
✓ Offered3
Energy and Building Software
Calculation of building energy demand, power loads, comfort and life cycle; thermal and eco-certification software, BIM/BEM import and export, multilingual use.
Building Physics and Life-Cycle Software
Analysis of U-value, thermal inertia and life cycle for homogeneous and heterogeneous constructions; software for building professionals with fast, reliable results.
Material Database Interoperability Software
Information exchange between material suppliers and construction software; XML-based solution for managing proprietary construction material databases without a central database.
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4.1/5

E4tech S.àr.l.

Trust & reputation

ranQ Trust Score of E4tech S.àr.l.: 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.

E4tech S.àr.l. 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.
x
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%
E4tech S.àr.l. scores 83.0 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.55.07%
E4tech S.àr.l. scores 81.7 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).81.722%
E4tech S.àr.l. scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

E4tech S.àr.l. 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.

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Location

Avenue d'Ouchy 4
1006 Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-109.063.970
Founded
2001 · 25 years
Last commercial register change
July 27, 2026
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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