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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceWholesale - Construction & Raw MaterialsVuisternens-Devant-RomontM. Dumas Sàrl
M. Dumas Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of M. Dumas Sàrl is the trade of materials for construction and renovation, particularly the sale of products such as stone, slabs and other building materials, as well as the provision of services such as consulting, transportation and delivery.

AI-generated
Offering

Products & services

Industry:Wholesale - Construction & Raw Materials
✓ Offered5
Sale of construction and renovation materials
Sale of materials for construction and renovation, including stone, paving slabs, cement, render, mortar, concrete, waterproofing, insulation, roofing and drainage and sewerage pipes.
Professional and personal advice
Professional and personal advice for selecting materials, tracking orders and files, with in-store reception and preparation of non-binding quotations.
Delivery service
Delivery of materials to homes and construction sites, handled by our own transport service.
Outdoor landscaping materials supply
Materials for outdoor design, in particular stone, paving slabs and other products suitable for outdoor projects.
Civil engineering materials supply
Materials for civil engineering, drainage and sewerage, roofing, waterproofing and insulation, for private individuals, businesses and public authorities.
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4.1/5

M. Dumas Sàrl

Trust & reputation

ranQ Trust Score of M. Dumas Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

M. Dumas Sàrl scores 67.8 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.62.624%
  • 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.58.610%
  • 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%
M. Dumas 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%
M. Dumas 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%
M. Dumas Sàrl scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

M. Dumas Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 9 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
4.2
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.29
★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 de Villariaz 10
1687 Vuisternens-Devant-Romont
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:00
Sat
08:00 - 11:30
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-110.506.709
Founded
2004 · 22 years
Last commercial register change
December 9, 2025
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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