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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesEngineerSarnenThomas Wallimann GmbH
Thomas Wallimann GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Thomas Wallimann GmbH advises and supports clients on water and environmental technology projects. It analyses, plans and oversees the construction or renovation of water-carrying installations and systems through to implementation, and provides water activation solutions for industry, businesses and households.

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Offering

Products & services

Industry:Engineer
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4.1/5

Thomas Wallimann GmbH

4
Planning of water-carrying pipes and systems
Planning of water-carrying pipes and systems from project start, including analysis, consulting, preliminary design, detailed engineering, project management and follow-up support for new construction or pipeline refurbishment.
Water revitalisation with activated water
Water activation for industry, trade, hotels, municipalities, agriculture and private households; to reduce chemical use, cleaning, corrosion, odours and maintenance effort.
Renovation and new construction of water-carrying installations
Renovation or new construction of water-carrying installations with measures to improve drinking, service and process water, and to optimise cost-effectiveness and durability.
Water and environmental engineering consulting
Consulting for projects in water and environmental engineering, focusing on tangible cost-effectiveness, sustainable quality of life and tailored solutions for industry, trade and private clients.
Trust & reputation

ranQ Trust Score of Thomas Wallimann 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.

Thomas Wallimann 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%
Thomas Wallimann GmbH scores 83.0 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.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%
Thomas Wallimann 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%
Thomas Wallimann GmbH scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thomas Wallimann 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

Feldheim 6
6060 Sarnen

At a glance

Legal form
Limited Liability Company
UID
CHE-113.993.062
Founded
2007 · 19 years
Last commercial register change
July 14, 2020
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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