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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGranges-Près-MarnandD. Sertori S.A.
D. Sertori S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of D. Sertori SA is the provision of services in the construction sector, particularly in the following areas: Construction (new building of buildings, including villas), Renovation (renovation and conversion of existing buildings), Civil Engineering (including earthworks and development), and Development (planning and implementation of construction projects, including the creation of residential areas). The company thus offers a comprehensive range of services in the construction sector and is able to carry out complex construction projects from planning to completion.

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Offering

Products & services

Industry:Building MaintenanceSite Preparation
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4.0/5

D. Sertori S.A.

Masonry Work
✓ Offered6
Construction
Construction of villas, houses, rural buildings, farms, hangars, stabling, manure pits, milk rooms, halls, garages and villa districts.
Renovation
Building transformations, facade repairs and plastering, tiling works, screeds, remediation and interventions on historical monuments.
Civil engineering
Excavation work, connections, pavements, bridge refurbishment, earthworks, access roads, private and public squares, water network.
Outdoor development
Development of terraces, stairways, natural stone walls, retaining walls and columbariums.
Planning and construction of a villa district
Planning and construction of villa districts, with development-zone projects and construction of individual villas.
Provision of a refrigerated trailer
Provision of a complimentary refrigerated trailer, on reservation for events via Cochon d’Or.
Trust & reputation

ranQ Trust Score of D. Sertori S.A.: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

D. Sertori S.A. scores 58.9 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.65.024%
  • 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.35.310%
  • 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%
D. Sertori S.A. scores 89.3 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.70.07%
D. Sertori S.A. 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%
D. Sertori S.A. scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

D. Sertori S.A. reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 3 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
4.3
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle4.33
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Impasse de la Poste
1523 Granges-Près-Marnand
Opening hours
Mon
08:00 - 17:30
Tue
08:00 - 17:30
Wed
08:00 - 17:30
Thu
08:00 - 17:30
Fri
08:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.025.237
Founded
1992 · 34 years
Last commercial register change
September 9, 2013
Employees
11 to 20
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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