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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryTolochenazBLACKSTONES Swiss SA
BLACKSTONES Swiss SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Eurostones is the manufacture and distribution of custom-made worktops made from various materials such as quartz, ceramic, marble and natural stone. The company also offers additional services including the realization of individual projects, the production of decorative objects and the restoration of natural stones.

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Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
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BLACKSTONES Swiss SA

✓ Offered5
Custom worktops
Kitchen worktops in quartz, ceramics, marble, granite and natural stone, with islands, splashbacks, bars, between-cabinet sections, skirting boards, shelves and made-to-measure cladding.
Bathroom and wellness fitting
Made-to-measure elements for bathrooms in marble: washbasins, showers, bathtubs, as well as saunas and hammams in marble, chlorite quartz, ceramics or granite.
Facades and cladding
Site measurements, 3D design, transport, delivery and installation for kitchen and bathroom renovations, apartments or residential areas, with stone cladding.
Custom-made pieces
Manufacture of tables, panels, fireplace elements, decorative objects and sculptures in marble or natural stone, with custom sizing, waterjet cutting and precision sculpting.
Tailored advice and project support
Advice for kitchen and bathroom renovations, support from design through installation, with expertise and drawing/layout planning (calepinage).
Trust & reputation

ranQ Trust Score of BLACKSTONES Swiss SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

BLACKSTONES Swiss SA scores 66.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.62.124%
  • 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.68.910%
  • 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.78.08%
BLACKSTONES Swiss SA scores 70.4 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.64.612%
  • 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%
BLACKSTONES Swiss SA scores 85.0 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).85.022%
BLACKSTONES Swiss SA scores 91.4 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 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BLACKSTONES Swiss SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 14 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.214
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Chemin de Préveyres 1 B
1131 Tolochenaz
Opening hours
Mon
08:00 - 12:00, 13:00 - 18:00
Tue
08:00 - 12:00, 13:00 - 18:00
Wed
08:00 - 12:00, 13:00 - 18:00
Thu
08:00 - 12:00, 13:00 - 18:00
Fri
08:00 - 12:00, 13:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-151.705.703
Founded
2021 · 5 years
Last commercial register change
September 29, 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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