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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionLausanneBertholet + Mathis SA
Bertholet + Mathis SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bertholet + Mathis SA is a construction firm providing building construction, civil engineering, transformations/renovations, thermal insulation and façade refurbishment, and asbestos-removal services. The company carries out planning and execution of reinforced concrete, prestressed and precast concrete works and holds ISO certifications (ISO 9001, ISO 14001, ISO 45001).

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Products & services

Industry:Building ConstructionCivil Engineering
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Bertholet + Mathis SA

✓ Offered5
Building construction
New building construction in reinforced and prestressed concrete, precast construction and masonry; residential buildings, public buildings, shopping centres, underground car parks and technology campuses.
Civil engineering
Engineering structures and infrastructure in reinforced concrete; bridges, viaducts, tunnels, retaining walls and other structural works, with design, execution and coordination.
Alterations & renovations
Conversion, renovation and maintenance of existing structures; heavy and light conversions, masonry, plastering, tiling, painting, strengthening, intervention after damage and adaptation of utility networks.
Thermal insulation & façade renovations
Reworking of renders, installation of perimeter insulation, restoration of window surrounds and cornices, diagnosis and elimination of carbonation defects.
Asbestos removal
Identification, containment, removal and treatment of asbestos-containing materials; logistical coordination, monitoring with the parties involved and final reinstatement.
Trust & reputation

ranQ Trust Score of Bertholet + Mathis SA: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Bertholet + Mathis SA scores 73.0 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.63.210%
  • 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.70.08%
Bertholet + Mathis SA scores 93.9 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%
Bertholet + Mathis 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%
Bertholet + Mathis SA scores 40.0 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 35.40.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bertholet + Mathis SA reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 11 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
4.8
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle4.811
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin du Grey 84
1018 Lausanne

At a glance

Legal form
Corporation
UID
CHE-115.938.660
Founded
2010 · 16 years
Last commercial register change
July 2, 2025
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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