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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringRüti ZhIngenieurbüro Irniger AG
Ingenieurbüro Irniger AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company provides engineering services in the field of plant planning and construction, particularly for heat generation systems, cooling systems and ventilation systems, as well as for cleanroom technology and sanitary technology. The core activities include sizing, thermodynamic and strength-related calculations, as well as the construction of special plant components.

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Products & services

Industry:Technical Consulting & Engineering
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Ingenieurbüro Irniger AG

6
Planning of Refrigeration Systems
Planning of refrigeration systems for process and production technology as well as building services, including concept selection, sizing of refrigeration units and calculation of cooling networks.
Planning of Heat Generation Systems
Planning of heat generation systems, hot-water and hot-heating systems, steam heating systems, gas-fired boilers, heat pumps, solar systems, and combinations of different systems.
Planning of Ventilation Systems
Planning of ventilation systems for building services and process engineering, including garage ventilation, air-conditioning systems, heat recovery, air humidification and dehumidification systems, and industrial extraction systems.
Planning of Cleanrooms
Planning of cleanrooms based on ventilation technology, including analysis of climatic conditions and dimensioning for the required cleanroom conditions and working comfort.
Planning of Sanitary Installations
Planning of cold and hot-water supply, drainage and wastewater disposal, as well as water-treatment systems for the chemical and pharmaceutical industry.
Technical Consulting
Advisory services for new and existing systems in industrial and building services engineering, including feasibility and concept studies for technical implementability and cost-effectiveness.
Trust & reputation

ranQ Trust Score of Ingenieurbüro Irniger AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Ingenieurbüro Irniger 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%
Ingenieurbüro Irniger AG scores 85.5 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%
Ingenieurbüro Irniger AG scores 83.3 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).83.322%
Ingenieurbüro Irniger AG scores 2.0 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 35.2.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbüro Irniger AG reaches a ranQ Trust Score of 4.1 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 October 2026.

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

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Location

Werkstrasse 43B
8630 Rüti Zh

At a glance

Legal form
Corporation
UID
CHE-106.584.474
Founded
1993 · 33 years
Last commercial register change
May 2, 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.
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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