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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringGenevaDUPONT SA
DUPONT SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

DUPONT SA is an electrical services company that designs, installs and maintains high- and low-voltage systems. Services include building electrical installations, weak-current systems (networks, telephony, security and video), electrobiology assessments, fibre-optic installation and splicing, home automation, EV charging station installation, engineering and AEAI fire-protection services, and ESTI-authorised testing and controls.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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DUPONT SA

Electrical Planning & Installation
✓ Offered8
Electrical installations
New electrical installations, conversions, renovations and fault service for private, administrative and industrial buildings; IT networks, telephony, TV, video, intercom, alarm systems, video surveillance and access control.
Installation inspection
Periodic inspection of electrical installations according to OIBT, with a safety report for residential, administrative, industrial premises and other categories subject to inspection.
Engineering office & AEAI fire protection
Advice, planning, preparation of electrical drawings and project follow-up; AEAI fire protection with concept, audit, certification, maintenance and monitoring.
Lighting
Indoor and outdoor lighting solutions for homes, parks and gardens; site layout studies, ambient, comfort and task lighting, with tailor-made solutions.
Home automation
Technical building management and smart home: multimedia integration, control of heating and ventilation, lighting control and security functions.
Fibre optics
Laying, splicing and testing of fibre optic cables; fusion splices, power measurements, reflectometry and commissioning of network links.
Charging stations
Site survey, installation and connection of charging stations for electric vehicles, including commissioning, safety tests and guidance for use.
Electrobiology
Reduction of electrosmog: expertise and report, protection against electromagnetic exposure, remediation of installations and planning of projects without electrosmog.
Trust & reputation

ranQ Trust Score of DUPONT SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

DUPONT SA scores 67.0 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.59.224%
  • 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.68.910%
  • 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.88.08%
DUPONT 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%
DUPONT 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%
DUPONT SA scores 10.0 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 35.10.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DUPONT SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 14 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
4.1
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.114
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin des Clochettes 18
1206 Geneva
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.263.248
Founded
1997 · 29 years
Last commercial register change
July 29, 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.
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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