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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringVétrozVoltaz Sàrl
Voltaz Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Voltaz Sàrl is an independent inspection body (OIBT) and an electrical diagnostics office. It carries out low-voltage inspections required by ordinance, including ownership-change checks, periodic inspections (1, 5, 10 or 20 years), final/reception tests, photovoltaic system checks (DC and/or AC), charging-station inspections for electric vehicles, and electrical and consumption diagnostics. Voltaz holds a general inspection authorization issued by the Federal Inspectorate for Heavy Current Installations (ESTI) and issues objective inspection reports with photographic documentation.

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Products & services

Industry:Technical Consulting & Engineering
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Voltaz Sàrl

Testing & Inspection Centers
✓ Offered4
Electrical inspections OIBT
Inspections in case of change of ownership, periodic inspections, final inspections or commissioning checks according to the Low Voltage Installations Ordinance.
Inspection of photovoltaic installations
Inspection of photovoltaic installations in the DC and/or AC section to verify the compliance and safety of the installations.
Inspection of electric vehicle charging points
Inspections of charging points for electric vehicles as part of the checks of electrical installations.
Electrical and consumption diagnostics
Electrical and consumption diagnostics to analyse the condition of the installations and energy consumption.
Trust & reputation

ranQ Trust Score of Voltaz Sàrl

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Voltaz Sàrl has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Voltaz Sàrl scores 77.2 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.86.512%
  • 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%
Voltaz 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%
Voltaz Sàrl scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Chemin des Roseaux 25
1963 Vétroz
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-245.202.475
Founded
2016 · 10 years
Last commercial register change
February 1, 2023
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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