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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZurichKomfonie engineering AG
Komfonie engineering AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Komfonie Engineering AG is the planning and development of solutions for building technology and energy, including heating, ventilation, cooling, sanitation, sprinkler systems and energy efficiency. The company offers services such as project management, specialist construction management, quality management and energy consulting, focusing on innovative and sustainable solutions that are both technically and economically optimized.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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Komfonie engineering AG

✓ Offered12
Planning and Advisory for Building Services and Energy
Planning, consulting and management services for building services and energy across all project phases, including technical and economic optimisation from a single source.
Heating Technology
Planning of heating systems for new builds, renovation and modernisation as part of building services projects.
Ventilation and Air-Conditioning
Planning of ventilation and air-conditioning systems for buildings, matched to building services, comfort and energy requirements.
Sanitary Engineering
Planning of sanitary installations as part of building services, including project-specific sizing and coordination.
Refrigeration Engineering
Planning of refrigeration systems and technical solutions for buildings and energy-related projects.
Building Automation and MCR
Planning of building automation and measurement, control, regulation and monitoring technology for building services projects.
Energy Consulting and Energy Concepts
Energy consulting, energy concepts, energy labels and society, as well as solutions for energy and operational optimisation.
BIM and Digital Design
BIM-supported design and Building Information Modeling for digital transformation in building services and construction planning.
Project Management and Technical Site Supervision
Project management, technical site supervision and quality management for building services and energy projects.
Feasibility Studies and Expert Reports
Condition analyses, feasibility studies, expert reports, studies as well as simulations and measurements for technical projects.
Renewable Energies
Planning and integration of renewable energies into building services and energy concepts.
Client Advisory and Sustainable Construction
Client advisory, sustainable construction and support for technical and economic project optimisation.
Trust & reputation

ranQ Trust Score of Komfonie engineering AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Komfonie engineering AG scores 59.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.75.024%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.40.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Komfonie engineering AG scores 82.0 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.83.012%
  • 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%
Komfonie engineering AG 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%
Komfonie engineering AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Komfonie engineering AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Comparisons

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Location

Vulkanstrasse 110c
8048 Zurich
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-286.959.920
Founded
2017 · 9 years
Last commercial register change
June 19, 2026
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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