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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringBadenkaro-san systems ag
karo-san systems ag Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of karo-san GmbH is the trenchless renewal of sewer and pipeline systems, including special drilling, damage analysis by TV inspection and the development of innovative solutions such as the karo-san pipe System.

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Products & services

Industry:Civil Engineering
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karo-san systems ag

✓ Offered7
Trenchless sewer and pipe rehabilitation
Trenchless rehabilitation and renewal of sewer and pipe lines, from planning to execution; using environmentally friendly methods, short-pipe modules and special drilling.
pipe-System
Trenchless rehabilitation from manhole to manhole using the “Pipe into Pipe” system; short-pipe modules, tensioning mechanism, pull-in into the existing sewer, low setup times and low space requirements.
Berstlining
Trenchless renewal of defective pipelines in the same alignment; suitable for various damage types up to complete collapse, without preparatory measures on the existing line.
Pipe configuration
Precise and safe pull-in of short-pipe modules into existing pipelines; for fast, cost-efficient rehabilitation with reduced space requirements and low staff effort.
Sunk shaft
Sunk shafts for pumping stations and large shafts; structures from DN 1500 to DN 3200 and depths up to 10 m, matched to soil, loads and groundwater.
Buoyancy protection
Buoyancy protection for relining measures using short-pipe modules; pbc system with fixing rods, prevents pipe uplift and can be installed without large excavations.
Special solutions
Tailor-made special solutions for demanding conditions; planning and execution of measures, for example in landfill remediation or special deployments.
Trust & reputation

ranQ Trust Score of karo-san systems ag

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

karo-san systems ag 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.
x
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%
karo-san systems ag scores 85.5 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.55.07%
karo-san systems ag scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).83.322%
karo-san systems ag scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Mellingerstrasse 2a
5400 Baden

At a glance

Legal form
Corporation
UID
CHE-113.083.674
Founded
2006 · 20 years
Last commercial register change
December 28, 2021
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.
100.0
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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