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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentWater supplyAarauBlu-Grid GmbH
Blu-Grid GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Blu-Grid GmbH provides consultancy and practical solutions for drinking water hygiene, including risk assessments, water sampling and training for operators of large facilities, property managers and water utilities. The company sells and supports SuSAn rapid test kits and automated analysis systems for on-site Legionella detection and supplies Legionella filters.

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Service area

Offering

Products & services

Industry:Water supply
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3.8/5

Blu-Grid GmbH

✓ Offered3
Legionella detection
Legionella analysis system for rapid initial assessment of contamination in drinking and service water; results in under 60 minutes, for self-monitoring and supplementary laboratory tests.
Legionella filters
Filter products for point-of-use outlets for direct Legionella filtration while showering or at water draw-off points; various models and replacement filters for different applications.
Accessories for Legionella prevention
Practical accessories to prevent Legionella growth, complementing the filter and analysis range for use in showers and other water draw-off points.
Trust & reputation

ranQ Trust Score of Blu-Grid GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of November 2026

Blu-Grid 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%
Blu-Grid GmbH scores 50.8 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.25.012%
  • 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%
Blu-Grid 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%
Blu-Grid GmbH scores 65.7 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 35.65.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Blu-Grid GmbH reaches a ranQ Trust Score of 3.8 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

Bachstrasse 15
5000 Aarau

At a glance

Legal form
Limited Liability Company
UID
CHE-190.956.002
Founded
2025 · 1 year
Last commercial register change
July 23, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • AGAarau
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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