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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectStein ArLouis architektur + design
Louis architektur + design Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Louis architektur + design provides architectural and interior design services, design work and lighting planning. Its activities include client consulting, feasibility studies and competitions, as well as new construction, conversions and renovations; the company also sells designer lighting.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Architect
✓ Offered5
Architecture
Architecture, interior design and design for new builds, conversions and renovations; single-family houses, apartments, office construction and public buildings, as well as feasibility studies and competitions.
Lighting design
Lighting design for architectural projects and design of modern luminaires; advice on the right solution in connection with interior design and building projects.
Client advisory
Client advisory for new builds, conversions and renovations; support in evaluating solutions, feasibility and project execution.
Feasibility studies and competitions
Feasibility studies and competitions in the context of architectural projects; assessment of implementability and participation in design competitions.
Design luminaires
Modern design luminaires from a large selection; luminaires with a link to architecture and lighting design, partly awarded international design prizes.
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4.1/5

Louis architektur + design

Trust & reputation

ranQ Trust Score of Louis architektur + design: 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.

Louis architektur + design 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%
Louis architektur + design scores 78.5 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%
Louis architektur + design scores 85.0 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).85.022%
Louis architektur + design 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

Louis architektur + design 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

Langenegg 877
9063 Stein Ar

At a glance

Legal form
Sole proprietorship
UID
CHE-109.277.933
Founded
2001 · 25 years
Last commercial register change
January 15, 2010
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ARStein (AR)
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.
67.0
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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