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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionChézard-St-Martin3B Constructions Sàrl
3B Constructions Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of 3B Architecture SA is the planning and realization of construction projects, particularly in the field of architecture, including the construction of villas, apartment buildings, promotions and renovations. The company offers traditional and modern construction methods, including timber construction, and carries out projects both as a general contractor and on a mandate basis.

AI-generated
Offering

Products & services

Industry:Building Construction
✓ Offered6
Single-family homes
Traditional construction, timber frame, Minergie, concepts on request; project studies, design and technical management, site supervision for villas and single-family homes.
Residential buildings
Condominium ownership, rental for investment returns, construction on a fixed-price basis or by mandate, property management; project studies, technical design and site supervision.
Commercial buildings and crafts
Fixed-price or by-mandate construction, structure and tailor-made concept for commercial and crafts buildings; project studies, technical design and site supervision.
Conversions / renovations
On a fixed-price basis or under an architecture mandate, enhancement of existing buildings, extensions and build-outs; project studies, design and site supervision.
Turnkey property development
Sourcing financing, notarial documents, financial monitoring for properties for sale; villa and apartment-building projects offered as property promotions.
Architecture
Project studies, design and technical management, site supervision for single-family homes, multi-family housing, conversions and crafts or commercial buildings.
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4.3/5

3B Constructions Sàrl

Trust & reputation

ranQ Trust Score of 3B Constructions Sàrl: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

3B Constructions Sàrl scores 76.5 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.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 Constructions Sàrl scores 89.7 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.82.07%
3B Constructions 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%
3B Constructions Sàrl 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 Constructions Sàrl 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

Rue du Seu 21
2054 Chézard-St-Martin

At a glance

Legal form
Limited Liability Company
UID
CHE-113.726.555
Founded
2007 · 19 years
Last commercial register change
February 1, 2013
Employees
21 to 50
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.
88.0
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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