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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialist foundation engineeringJonenTankdokter GmbH
Tankdokter GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Tankdokter GmbH provides tank inspections, visual checks and tank-system refurbishment. The company plans and installs new tanks, dismantles existing systems and assists with taking them out of service.

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Service area

Offering

Products & services

Industry:Specialist foundation engineering
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3.9/5

Tankdokter GmbH

✓ Offered6
Tank inspection
Regular tank inspections with thorough cleaning, a new interior coating, and checks of all system components to ensure operational safety and preserve value.
Tank systems
New tank systems made of plastic, steel or concrete, including delivery, unloading and registration of the container with the authorities.
Decommissioning of tank systems
Dismantling of tank systems using modern tools and presenting alternative options during shutdown.
Rehabilitation of tank systems
Rehabilitation of defective tank systems with professional repair work and measures to restore operational functionality.
Chimney refurbishments
Refurbishments and adjustments of chimneys to comply with air pollution control regulations.
Sealing work
Installation of durable liners for swimming pools, ponds and chemical tanks for commercial and industrial use.
Trust & reputation

ranQ Trust Score of Tankdokter GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 54% · As of November 2026

Tankdokter 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.
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%
Tankdokter GmbH scores 65.0 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.58.012%
  • 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%
Tankdokter 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%
Tankdokter GmbH scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tankdokter GmbH reaches a ranQ Trust Score of 3.9 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

Dorfstrasse 31
8916 Jonen
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
08:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-148.547.208
Founded
2022 · 4 years
Last commercial register change
October 20, 2022
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • AGJonen
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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