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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementCrans-MontanaBureau 21 SA
Bureau 21 SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bureau 21 SA is architecture and construction development, particularly in the field of hotel and tourism infrastructure in Crans-Montana, Switzerland. The company offers services such as conception, planning, realization and management of construction projects, including hotel buildings, apartments and other tourist facilities.

AI-generated
Offering

Products & services

Industry:Construction & Project Management
✓ Offered7
Architectural design
Development of architectural project designs for structures of small or large scope, including planning of an urban development that combines Valais character with modern design.
Architectural projects
Construction and development projects in Crans-Montana, including Projets Bureau 21, Projets Crans-Montana-Aminona, Vision Crans-Montana and Hôtel & Bains les Mélèzes.
Construction
Execution of construction works, from small to large structures, within the framework of the projects handled by the firm in Crans-Montana.
Implementation
Monitoring and execution of architectural projects, in connection with the firm’s projects and construction.
Real estate sales
Sale of real estate properties listed on the website, in particular villas, residences and chalets in Crans-Montana and the surrounding area.
Property rentals
Rental of properties published on the website, with several residences offered in Crans-Montana.
PPE and building administration
Administration of PPE and buildings, including management of residences and establishment of several condominiums in Crans-Montana.
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3.8/5

Bureau 21 SA

Trust & reputation

ranQ Trust Score of Bureau 21 SA: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Bureau 21 SA scores 49.8 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.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%
Bureau 21 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%
Bureau 21 SA 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%
Bureau 21 SA scores 5.4 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 35.5.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bureau 21 SA reaches a ranQ Trust Score of 3.8 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.

Knowledge

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Comparisons

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Location

Route du Rawyl 42
3963 Crans-Montana
Opening hours
Mon
08:00 - 12:00, 14:00 - 18:00
Tue
08:00 - 12:00, 14:00 - 18:00
Wed
08:00 - 12:00, 14:00 - 18:00
Thu
08:00 - 12:00, 14:00 - 18:00
Fri
08:00 - 12:00, 14:00 - 18:00
Sat
10:00 - 12:00, 16:00 - 18:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.434.484
Founded
1989 · 37 years
Last commercial register change
January 9, 2017
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.
100.0
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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