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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsLausanneAster'O, travaux sous-marins Sàrl
AT
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Aster'O Travaux sous-marins SARL is the execution of subaquatic works, in particular: underwater inspection of structures, construction and maintenance of underwater structures, combating invasive mussel species (Quagga and Zebra mussels), wreck removal, bathymetry and topography, sampling, drilling and analysis. The company offers these services in Switzerland and abroad, working with various clients, including public and private companies as well as private individuals.

AI-generated
Trust & reputation

ranQ Trust Score of Aster'O, travaux sous-marins Sàrl: 3.7 out of 5.0

Trust Score3.7/ 5.0
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3.7/5

Aster'O, travaux sous-marins Sàrl

Solid

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Data basis 92% · As of October 2026

Aster'O, travaux sous-marins Sàrl scores 50.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.54.224%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Aster'O, travaux sous-marins Sàrl scores 82.0 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.97.712%
  • 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%
Aster'O, travaux sous-marins Sàrl scores 61.7 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).61.722%
Aster'O, travaux sous-marins Sàrl has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% 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
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Aster'O, travaux sous-marins Sàrl reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.0 out of 5 stars from 2 customer reviews. The data basis is 92%, 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. Full methodology

Reviews

Aggregated rating

Aggregated rating
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Location

Avenue de France 18
1004 Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-270.988.241
Founded
2012 · 14 years
Last commercial register change
June 2, 2025
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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%

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