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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringBernStrahm AG Umwelt- und Energietechnik
Strahm AG Umwelt- und Energietechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Strahm AG is the comprehensive planning, consulting and design of heating, ventilation, air conditioning and environmental technology systems. This includes in particular the development of customized solutions for buildings to ensure efficient and sustainable energy use.

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Products & services

Industry:Technical Consulting & Engineering
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Strahm AG Umwelt- und Energietechnik

✓ Offered8
Building services design
Design of HVACS systems and the overall building services for new builds and renovations, including technical coordination and cross-trade consulting.
Heating system design
Design of heating and cooling circuits from the source to the heat delivery, for projects in new builds and renovations.
Refrigeration system design
Design of refrigeration systems and cooling circuits within building services projects, from the source to the heat delivery.
Ventilation system design
Design of ventilation systems for modern buildings, from the air intake to the outlet, as part of HVAC and building services projects.
Air conditioning design
Design of air conditioning systems and climate-related solutions for buildings, integrated into HVAC and building services projects.
Environmental and energy technology consulting
Consulting in the early stages of projects on environmentally friendly and energy-saving solutions, considering the energy potential and technical feasibility.
GEAK documentation
Preparation of the necessary documentation for construction projects as a GEAK specialist partner, including technical processing in the context of energy planning.
Minergie documentation
Preparation of the necessary documentation for construction projects as a Minergie specialist partner, combined with consulting and support throughout all project phases.
Trust & reputation

ranQ Trust Score of Strahm AG Umwelt- und Energietechnik: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Strahm AG Umwelt- und Energietechnik scores 62.0 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.70.824%
  • 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.27.910%
  • 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.78.08%
Strahm AG Umwelt- und Energietechnik 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%
Strahm AG Umwelt- und Energietechnik 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%
Strahm AG Umwelt- und Energietechnik scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Strahm AG Umwelt- und Energietechnik reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Stauffacherstrasse 65
3014 Bern
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:13 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.873.102
Founded
1989 · 37 years
Last commercial register change
March 27, 2025
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.100.06%
  • 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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