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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSt. Gallendiemenergie gmbh
diemenergie gmbh Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "diemenergie" is the independent consulting and accompaniment of customers in the planning, implementation and optimization of heating and energy systems for buildings. This includes the creation of concepts, the evaluation of offers, the conduct of measurements and analyses, as well as the moderation of interfaces between customers, installers and other stakeholders. The company supports customers in the selection and implementation of efficient and sustainable heating and energy systems and also offers consulting services by phone or e-mail.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
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3.7/5

diemenergie gmbh

✓ Offered6
On-site consulting
On-site consulting for heating-related matters, recording the current situation, consultation in your home or on the site.
Concept
Concept for the renovation of single-family homes, evaluation of the optimal heating or energy system, calculation of investment and operating costs as well as the payback period.
Quotation comparison
Comparison of contractors’ quotations, neutral assessment of performance and workmanship quality, project support until handover.
Measurement & analysis
Review of existing or newly installed heating systems, data logging with a datalogger, analysis on a computer, visualization of thermal bridges and leaks with a thermal imaging camera.
Interface mediation
Mediation for interface issues in existing or new systems on site with the parties involved.
Consulting via phone or email
Independent consultation by phone or email during general office opening hours, answering questions within a reasonable time.
Trust & reputation

ranQ Trust Score of diemenergie gmbh: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

diemenergie gmbh scores 49.8 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.68.224%
  • 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.17.610%
  • 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%
diemenergie gmbh scores 72.3 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.75.012%
  • 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%
diemenergie gmbh 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%
diemenergie gmbh scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

diemenergie gmbh reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Peter-und-Paul-Strasse 30
9010 St. Gallen
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
Limited Liability Company
UID
CHE-498.772.298
Founded
2019 · 7 years
Last commercial register change
May 13, 2019
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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