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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Machinery & Electronic DevicesAadorfMarine Diesel Service GmbH
Marine Diesel Service GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Marine Diesel Service GmbH provides technical assistance and spare parts for marine diesel engines and ancillaries. Services include post-damage technical support, troubleshooting and emergency parts supply, maintenance and spare-part stocking, commissioning of new vessels, inspection of second-hand vessels, repair and dry-docking planning, training on 2‑stroke SULZER engines, and field service.

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Products & services

Industry:Repair of Machinery & Electronic Devices
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4.1/5

Marine Diesel Service GmbH

Wholesale - Spare Parts & Residual Materials
✓ Offered6
Technical assistance and spare parts for marine diesel engines and auxiliaries
Technical support after engine damage, fault diagnosis, emergency spare-part supply, maintenance, commissioning of newbuilds, inspection of used vessels and field service.
General maintenance and repair services
Planning and execution of maintenance work, inspections, overhauls, repairs and monitoring during dockings, including work on control and safety systems.
Spare-parts supply and stockholding advice
Delivery of spare parts from proven manufacturers and cost-effective sources, support with supplier selection, and recommendations for stock levels and stocking.
Commissioning of newbuilds
Support with construction supervision, factory testing, yard assembly, commissioning and sea trials, as well as advice on initial stock and maintenance systems.
Inspection of used vessels
General condition check of main engines, assessment of performance data, maintenance documents, class records and spare-part stock; if required, inspection trip onboard.
Training for 2-stroke SULZER engines
Crew trainings during visits as well as customised training seminars onboard or ashore.
Trust & reputation

ranQ Trust Score of Marine Diesel Service GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Marine Diesel Service 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%
Marine Diesel Service GmbH scores 83.0 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.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%
Marine Diesel Service GmbH scores 85.0 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).85.022%
Marine Diesel Service GmbH scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Marine Diesel Service 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 October 2026.

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

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Location

Weiernstrasse 3
8355 Aadorf
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-112.750.485
Founded
2006 · 20 years
Last commercial register change
January 18, 2024
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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