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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsEstavayer-Le-Lac3B Architecture SA
3B Architecture SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

3B Architecture SA is an architectural practice that designs and manages projects for individual houses, residential buildings, renovations, and industrial or commercial premises. The firm delivers traditional construction and timber-frame solutions and undertakes turnkey projects or assignments on mandate.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered4
Architecture of detached single-family villas
Project studies, planning and technical management, site direction for single-family homes; traditional construction, timber-frame construction, Minergie and other concepts on request.
Architecture of residential buildings
Project studies, planning and technical management, site direction for residential buildings; condominium ownership, rental with an income/rentability focus, delivery on a fixed-price basis or by mandate, property management.
Alterations and renovations
Project studies, planning and technical management, site direction for alterations and renovations; enhancement of existing buildings, enlargements and extensions, at a fixed price or by mandate.
Turnkey property development
Financing search, notarial documents and financial follow-up for property developments; villa and residential building projects offered for sale, with support until completion.
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4.3/5

3B Architecture SA

Trust & reputation

ranQ Trust Score of 3B Architecture SA: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

3B Architecture SA scores 76.5 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.71.824%
  • 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.78.610%
  • 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.88.08%
3B Architecture SA scores 89.3 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%
3B Architecture 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%
3B Architecture SA scores 48.6 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 35.48.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

3B Architecture SA reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 21 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
4.5
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle4.521
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route du Chasseral 8
1470 Estavayer-Le-Lac

At a glance

Legal form
Corporation
UID
CHE-106.126.901
Founded
1996 · 30 years
Last commercial register change
June 25, 2021
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.
100.0
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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