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DirectoryConstruction & ArchitectureArchitectLausannetangram-design SARL
tangram-design SARL Logo
Verified· 2 sourcesTrust Score
Summary

About the company

tangram-design SARL is an architectural practice involved in designing, constructing and transforming buildings, as well as urban planning and design. Its work includes renovating existing buildings and using timber and locally sourced materials.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Architect
✓ Offered5
Architecture
Building architecture from design to site management, with construction, conversion and fit-out projects at different scales.
Building conversion and renovation
Conversion and renovation of farmhouses, workers' houses and châteaux, with adaptation to technical standards, heritage requirements and current needs.
Timber construction
Timber construction using local materials, solid timber, charred timber, panels and prefabricated structures, applied to new-build and transformation projects.
Design of housing projects
Detached houses, multi-family homes and collective housing, in new construction or renovation, depending on the projects presented.
Design of public and collective buildings
Schools, secondary schools, crèches, EMS, UAPE, museums, swimming pools and performance halls, handled in architectural projects and competitions.
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4.1/5

tangram-design SARL

Trust & reputation

ranQ Trust Score of tangram-design SARL: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

tangram-design SARL 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%
tangram-design SARL scores 86.7 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.70.07%
tangram-design SARL scores 85.0 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).85.022%
tangram-design SARL scores 12.6 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 35.12.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

tangram-design SARL 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Hier entsteht die Karte
Avenue de Sévelin 32
1004 Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-115.349.848
Founded
2010 · 16 years
Last commercial register change
January 14, 2011
Employees
11 to 20

Active in 1 of 26 cantons

  • VDVaud
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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