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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsYverdon-Les-BainsBona Architecture et Design Sàrl
Bona Architecture et Design Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bona AD is an architectural firm specializing in the planning and realization of construction projects. The company's core activities include: planning and realization of new buildings, such as villas, residential houses and mixed-use buildings; carrying out renovations, conversions and extensions of existing buildings; designing interior spaces and planning temporary installations for events and exhibitions; and advising and accompanying clients in the realization of their construction projects, from land acquisition to completion of interior spaces. The company places particular emphasis on considering environmental and energy aspects in the planning and realization of construction projects.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered4
New construction
Creation of individual, attached villas, residential buildings and mixed-use buildings; support for the acquisition of the land from the land purchase through to the interior fit-outs.
Renovations
Renovation, transformation, expansion and change of use of real estate properties; study of the possibilities with particular attention to environmental and energy aspects.
Design
Interior layouts to remodel spaces or create stands and temporary areas for events; designing pleasant and aesthetic spaces.
Architectural project consulting and support
Advice, support and experience to bring an architectural project to life in close collaboration with the client, depending on the site situation, needs and possibilities.
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4.2/5

Bona Architecture et Design Sàrl

Trust & reputation

ranQ Trust Score of Bona Architecture et Design Sàrl: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Bona Architecture et Design Sàrl scores 72.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.76.724%
  • 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.45.610%
  • 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.95.08%
Bona Architecture et Design Sàrl 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%
Bona Architecture et Design Sàrl 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%
Bona Architecture et Design Sàrl scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bona Architecture et Design Sàrl reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue des Pêcheurs 8
1400 Yverdon-Les-Bains

At a glance

Legal form
Limited Liability Company
UID
CHE-108.265.206
Founded
1997 · 29 years
Last commercial register change
June 30, 2009
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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