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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsLausanneSynthèse développement et conception S.à r.l.
Synthèse développement et conception S.à r.l. Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Synthèse développement et conception S.à r.l. is an architecture practice focused on sustainable design, energy efficiency, and cost-conscious project planning. The company supports projects from concept to completion and provides services for new builds, conversions, and renovations.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered3
Architecture
Architecture of sustainable projects, design of buildings for investors, institutions and private clients; preparation of the scope of work, architectural concept, energy integration and site supervision.
Building renovation and remediation
Building renovation and remediation with handling of administrative procedures, qualitative site monitoring, financial control and handover of the works.
Energy design and sustainable development
Design integrating energy efficiency, high-performance insulation and materials, the orientation of glazing, thermal solar or photovoltaic systems, and reducing environmental impact.
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4.1/5

Synthèse développement et conception S.à r.l.

Trust & reputation

ranQ Trust Score of Synthèse développement et conception S.à r.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.

Synthèse développement et conception S.à r.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.
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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%
Synthèse développement et conception S.à r.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%
Synthèse développement et conception S.à r.l. 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%
Synthèse développement et conception S.à r.l. scores 8.3 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 35.8.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Synthèse développement et conception S.à r.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

Rue des Terreaux 8
1003 Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-106.516.082
Founded
1997 · 29 years
Last commercial register change
April 5, 2017
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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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