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

About the company

Thorsen Sàrl is an electrical engineering consultancy providing full SIA project services including preliminary studies, design, coordination, execution and handover. Its services include energy and green-tech solutions (photovoltaics, battery storage), electric-vehicle charging infrastructure, lighting design, network modelling, energy audits, expert assessments, electrical and fire-safety concepts and coordination of OIBT compliance checks.

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Products & services

Industry:Technical Consulting & Engineering
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Thorsen Sàrl

✓ Offered10
Project studies and monitoring
Full SIA services for electrical projects, from pre-design to acceptance: surveys, studies, coordination, tendering, detailed design, site monitoring and acceptance.
Energy / Green Tech
Studies for photovoltaic installations, batteries, stationary storage systems and charging points, with optimisation of consumption, load shedding and lighting control.
Advanced studies and modelling
Modelling, analysis and sizing of multi-source electrical networks, microgrids and electric mobility; economic studies, operational simulation, risk analyses and protection plan.
Energy audits
Audits, initial assessments, action plans, support for implementation and periodic monitoring of consumption, with decarbonisation plans and incentive programmes.
Lighting design
Lighting studies for sports grounds, industrial halls, schools, laboratories, retail and residential properties; selection of luminaires, compliance with standards and energy efficiency.
Mobility and supply
Design and support for mobility and supply infrastructures: service stations, public parking areas, fast chargers, hydrogen, ATEX zones, payment, monitoring and compliance.
Expert reports and audits
Expert reports out of court, damages and disputes related to electrical installations; audits of quality and safety of equipment and installations in EX areas, and of selectivity.
OIBT inspections
Complete coordination of OIBT inspections, putting inspection bodies in competition, managing corrective actions for compliance and monitoring up to the official safety report.
Electrical safety concept
Development of electrical safety concepts for companies and network operators: standards, internal regulations, training, monitoring of competencies and periodic checks.
Fire safety concept
Development of fire protection concepts and reports: analysis of the building and materials, structural, technical and organisational measures, monitoring and acceptance.
Trust & reputation

ranQ Trust Score of Thorsen Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Thorsen Sàrl scores 66.9 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.73.124%
  • 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.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.88.08%
Thorsen 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%
Thorsen 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%
Thorsen Sàrl scores 13.7 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 35.13.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thorsen 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 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
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Route de la Chocolatière 26
1026 Echandens
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-105.705.580
Founded
2000 · 26 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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