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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsLausanneAtelier d'architecture Jaunin SA
Atelier d'architecture Jaunin SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the planning and realization of construction projects, particularly in the field of high-rise architecture, with a focus on: planning and building residential properties, such as single-family homes and multi-family homes; renovation and refurbishment of existing buildings, including the modernization of apartments and common areas; and implementation of projects in Switzerland, particularly in the Lausanne region. The company also offers specific services such as: architectural planning and consulting; construction management and project management; interior design and construction; and renovation and refurbishment of buildings and apartments. The company focuses on realizing high-quality construction projects that are both functional and aesthetically pleasing.

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Products & services

Industry:Architecture Firms
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3.9/5

Atelier d'architecture Jaunin SA

Residential architecture
Construction of individual villas and residential buildings in PPE, with design of dwellings, underground parking, vehicle access and related site arrangements linked to the programme.
Renovation of residential buildings
Complete renovation of occupied residential buildings, including common areas, stairwells, building envelopes, windows, technical installations and compliance upgrades for fire safety.
Interior transformation
Transformation and fit-out of dwellings, with redistribution of spaces, design of loft-style floor plans, creation of sliding partitions and level optimisation.
Trust & reputation

ranQ Trust Score of Atelier d'architecture Jaunin SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Atelier d'architecture Jaunin SA scores 56.9 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.47.524%
  • 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.68.910%
  • 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.70.08%
Atelier d'architecture Jaunin SA scores 85.5 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%
Atelier d'architecture Jaunin SA 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%
Atelier d'architecture Jaunin SA scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Atelier d'architecture Jaunin SA reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 14 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
3.7
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle3.714
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue Saint-Roch 36
1000 Lausanne

At a glance

Legal form
Corporation
UID
CHE-102.615.213
Founded
1980 · 46 years
Last commercial register change
July 25, 2022
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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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