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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil worksSpeicherBruno Brunner GmbH
Bruno Brunner GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Bruno Brunner GmbH provides services in drilling consultancy, well construction and geothermal energy. Its work includes planning and supervising drilling, constructing and renovating wells and spring-water intakes, pipeline installation, water and utility-line locating, and maintenance.

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Service area

Offering

Products & services

Industry:Civil works
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4.1/5

Bruno Brunner GmbH

✓ Offered6
Well construction / pipe construction
Water prospecting, planning, supervision and drilling of wells for drinking water, water/water heat pumps and groundwater lowering; installation of pumping systems and supply lines, renovation of spring intakes and drilled wells.
Geothermal energy / technical site management
Advisory services for geothermal drilling, technical site management and site planning, monitoring of drilling work, quality checks, laying and welding of connecting pipelines, as well as maintenance of ground heat exchanger systems.
Water intakes / spring intakes
Search for water resources on site, planning and organisation of new spring intakes, renovation of existing intakes, excavation and intake works, laying of pipelines, and cleaning and service works.
Pipe location / inspection / cleaning
Locating water and ground heat exchanger pipelines using TV cameras and locating equipment, condition inspection and documentation of water, drainage and ground heat exchanger pipelines, cleaning of drainage and spring water pipelines.
Drilling consulting
Consulting and support for drilling-related problems, in particular with water and gas incidents during drilling work; organisation or execution of sealing works.
Water search / dowsing
Water search for spring intakes, construction projects and drilling work, including information on location, depth and water quantity; radiesthetic search using a pendulum and a divining rod.
Trust & reputation

ranQ Trust Score of Bruno Brunner GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Bruno Brunner 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.
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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%
Bruno Brunner GmbH scores 75.7 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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.55.07%
Bruno Brunner GmbH scores 86.7 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).86.722%
Bruno Brunner GmbH scores 6.3 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 35.6.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bruno Brunner GmbH 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 November 2026.

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

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Location

Brand 15
9042 Speicher
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-406.758.882
Founded
2017 · 9 years
Last commercial register change
June 25, 2020
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ARSpeicher
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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