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

About the company

trunova ag provides energy consulting and supports the planning, implementation and project supervision of solar thermal systems and photovoltaic installations, and offers GEAK certification and thermographic surveys.

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Products & services

Industry:Technical Consulting & EngineeringConstruction & Project Management
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trunova ag

Solar & Photovoltaics
✓ Offered9
Energy consulting / process consulting
Energetic analysis of the building, assessment of renovation measures, comparison of impact and costs, computer calculations and simulations.
Photovoltaics
Consulting and supply of suitable photovoltaic solutions for decentralised power generation, with high-quality components and professional installation.
Thermal solar systems
Consulting and supply of thermal solar systems for domestic hot water and heating, including planning and installation of a system tailored to needs.
Construction supervision
Development of the solution, obtaining and evaluating quotes, planning, coordinating and controlling activities, acceptance inspections and contact with authorities.
Building submission
Preparation of building submissions for renovations as well as the associated energy attestations for the building permit.
Heating system comparisons
Comparison of heating systems with a set of options tailored to the specific situation, system proposals, a cost overview and a CO2 balance.
GEAK certification
Building analysis for the cantonal GEAK building certificate, rating from A to G and suggestions for possible renovations.
Grant advisory
Support with applications, documentation and implementation confirmations for grants for energy renovations of buildings and renewable energies.
Thermography
Thermographic analysis of buildings or problem areas for energy assessment and for identifying hidden defects and issues.
Trust & reputation

ranQ Trust Score of trunova ag

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

trunova ag 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%
trunova ag 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%
trunova ag scores 83.3 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).83.322%
trunova ag 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

Erlenstrasse 88
8645 Jona

At a glance

Legal form
Corporation
UID
CHE-232.044.327
Founded
2011 · 15 years
Last commercial register change
May 11, 2011
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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