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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesStonemasonCarouge GePREMIUM STONE Sàrl
PREMIUM STONE Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

PREMIUM STONE Sàrl specialises in interior fittings using natural stone and composite materials. It sells and installs kitchen worktops and bathroom vanity tops, as well as stone finishes for fireplaces, stairs, floors and terraces, managing projects from measurement to installation.

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Service area

Offering

Products & services

Industry:Stonemason
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PREMIUM STONE Sàrl

Custom worktops
Worktops for kitchens and bathrooms in granite, marble, stone, quartz and ceramics, from design and fabrication through delivery.
Stone interior fit-out
Interior fit-out with hard materials, including site measurement, assembly of the worktops and installation of bespoke solutions for kitchens, bathrooms and interior spaces.
Fireplace and stair cladding
Cladding for fireplaces and stairs in stone and related materials, made to measure as part of interior fit-out projects.
Stone floor coverings
Supply and installation of stone flooring for indoors, outdoor terraces and swimming pool coping.
Trust & reputation

ranQ Trust Score of PREMIUM STONE Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

PREMIUM STONE Sàrl 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%
PREMIUM STONE Sàrl scores 79.8 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.92.512%
  • 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%
PREMIUM STONE Sàrl 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%
PREMIUM STONE Sàrl scores 12.6 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 35.12.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

PREMIUM STONE Sàrl 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 November 2026.

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

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Location

Rue des Caroubiers 15
1227 Carouge Ge

At a glance

Legal form
Limited Liability Company
UID
CHE-330.088.544
Founded
2014 · 12 years
Last commercial register change
July 22, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • GECarouge (GE)
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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