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

About the company

Iseni Engineering GmbH is an engineering firm for building services providing electrical and lighting design, HLKS (heating, ventilation, air-conditioning and sanitary) and building automation. The company also offers construction consulting and energy consulting, delivering integrated technical solutions for construction projects.

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Products & services

Industry:Technical Consulting & Engineering
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Iseni Engineering GmbH

✓ Offered11
Electrical planning
Tailored electrical planning for residential, commercial and public projects, from detailed design through to material selection and implementation.
Building automation
Intelligent, networked solutions for controlling lighting, shading, heating, ventilation and safety for residential, commercial and industrial projects.
Lighting planning
Lighting concepts for work areas, accent lighting as well as indoor and outdoor lighting—functional, aesthetic and tailored to use and architecture.
PV planning
Planning of photovoltaic systems for roof, façade and fence solutions as well as for residential buildings, commercial properties and larger projects.
Heating planning
Planning of modern heating systems such as heat pumps, solar thermal systems and district heating systems for residential buildings, commercial properties and larger projects.
Ventilation planning
Planning of energy-efficient ventilation systems with heat recovery, central and decentralised units, and solutions for complex requirements.
Sanitary planning
Well thought-out concepts for drinking water supply, domestic hot water preparation and wastewater systems, focusing on efficiency and sustainability.
Sewerage planning
Planning of sewer networks, rainwater drainage, foul water disposal and infiltration solutions for residential, commercial and infrastructure buildings.
Energy performance certificates
Preparation of energy performance certificates and GEAK certificates to assess energy efficiency and meet legal requirements.
Construction consulting
Individual consulting for sustainable, efficient construction projects, focusing on the planning and implementation of building services.
Energy consulting
Tailored energy concepts for construction projects, focusing on sustainability, efficiency and cost-effective implementation.
Trust & reputation

ranQ Trust Score of Iseni Engineering GmbH

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

Iseni Engineering GmbH 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%
Iseni Engineering GmbH scores 65.0 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.58.012%
  • 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%
Iseni Engineering GmbH 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%
Iseni Engineering GmbH 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.

Knowledge

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Location

Gartenstrasse 17
9435 Heerbrugg

At a glance

Legal form
Limited Liability Company
UID
CHE-498.812.704
Founded
2022 · 4 years
Last commercial register change
February 22, 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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