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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsLausanneDUO Architectes Paysagistes / Landschaftsarchitekten SARL
DUO Architectes Paysagistes / Landschaftsarchitekten SARL Logo
Verified· 3 sourcesTrust Score
Summary

About the company

DUO is an architectural firm specializing in landscape architecture and urban planning. The company's core activity encompasses the planning and realization of projects in the fields of landscape architecture, urban planning, and architecture, including the development of public spaces, schools, residential areas, and other construction projects. The company also participates in architectural competitions and offers study mandates and project management services.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered3
Landscape architecture
Analysis and design of outdoor spaces, open-space planning, planting concepts and environment concepts for public and private projects; projects as adaptable, evolving spaces.
Competition and study commissions
Participation in competitions and study commissions for urban districts, school sites, village centres, open spaces and infrastructure projects; repeatedly awarded first prizes and rankings.
Realisation of landscape and open-space projects
Implementation of redesigned squares, parks, school surroundings, promenades, swimming pools and public outdoor facilities; ongoing construction sites and completed work are documented.
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3.9/5

DUO Architectes Paysagistes / Landschaftsarchitekten SARL

Trust & reputation

ranQ Trust Score of DUO Architectes Paysagistes / Landschaftsarchitekten SARL: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 96% · As of October 2026

DUO Architectes Paysagistes / Landschaftsarchitekten SARL scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.68.224%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.17.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
DUO Architectes Paysagistes / Landschaftsarchitekten SARL scores 81.0 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.83.012%
  • 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%
DUO Architectes Paysagistes / Landschaftsarchitekten 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%
DUO Architectes Paysagistes / Landschaftsarchitekten SARL scores 71.4 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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DUO Architectes Paysagistes / Landschaftsarchitekten SARL reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Rue du Midi 20
1003 Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-313.914.141
Founded
2017 · 9 years
Last commercial register change
March 16, 2022
Employees
11 to 20
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.85.03%
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