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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialist foundation engineeringVilleneuve VdHelvisun SA
Helvisun SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Helvisun SA is a renewable energy company that designs and installs photovoltaic panels, heat pumps, energy storage systems and electric vehicle charging stations. It delivers turnkey projects including technical and financial studies, administrative procedures, conformity checks and maintenance, and cooperates with partners and industry organisations such as Swissolar and PV Cycle.

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Service area

Offering

Products & services

Industry:Specialist foundation engineering
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Helvisun SA

✓ Offered4
Photovoltaic panels
Photovoltaic panels for generating electricity from solar energy, with installations in overlay mounting, integrated into the roof, on flat roofs, on carports or on the ground.
Heat pump
Air/water, air/air and geothermal heat pumps, with installation of all types of systems for heating the home and reducing energy consumption.
Energy storage system
Battery storage systems coupled with photovoltaic installations, to store surplus energy, increase self-consumption and provide a reserve in the event of a power outage.
EV charging station
Charging stations for electric vehicles, with faster charging than a conventional socket and the option to be coupled with photovoltaic energy.
Trust & reputation

ranQ Trust Score of Helvisun SA: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 54% · As of November 2026

Helvisun SA 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.
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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%
Helvisun SA scores 59.7 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.39.612%
  • 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%
Helvisun 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%
Helvisun SA scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Helvisun SA reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

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

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Location

Zone industrielle D 140
1844 Villeneuve Vd

At a glance

Legal form
Corporation
UID
CHE-332.416.642
Founded
2024 · 2 years
Last commercial register change
October 6, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • VDVilleneuve (VD)
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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