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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsThônexBureau dec Sàrl
Bureau dec Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bureau Dec is the provision of services in the field of economic and financial management of construction projects, particularly in Switzerland. This includes the preparation of offers, the analysis of tenders, financial monitoring and the creation of texts for tenders. The company supports its clients in the selection of contractors, risk management and ensuring the efficient and cost-effective execution of construction projects. Bureau Dec positions itself as an expert in the economic management of construction projects and offers its clients a comprehensive range of services to successfully realize their projects.

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Offering

Products & services

Industry:Architecture FirmsConstruction & Project Management
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Bureau dec Sàrl

Real Estate Project Development
✓ Offered5
Bill of Quantities
Precise and detailed quantity take-offs, with setting-out/identification plans, quantification of materials and resources, cost estimation and preparation of tender documents.
Estimation & General estimate
Preliminary estimate and general estimate according to eCCC-BAT or CFC, with costings tailored to the level of precision desired and update of the price bases.
Tender documents
Drafting of tender documents with customised schedules, general and special conditions, wording according to CAN/SIA 451, plan analysis and quantification of materials.
Offer analysis
Comparison of tenders with comparative tables, verification of prices and included items, CFC-based analysis and selection of the most suitable contractor.
Financial monitoring
Financial management and on-site accounting, control of billed amounts, payment notes and final statements, with analysis of budget variances.
Trust & reputation

ranQ Trust Score of Bureau dec Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Bureau dec Sàrl scores 74.5 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.78.124%
  • 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.49.510%
  • 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%
Bureau dec Sàrl scores 77.2 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.86.512%
  • 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 dec Sàrl 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%
Bureau dec Sàrl scores 9.4 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 35.9.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bureau dec Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 6 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route de Jussy 29
1226 Thônex
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-265.277.766
Founded
2016 · 10 years
Last commercial register change
July 28, 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.
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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