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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionCorminboeufGema Granit et Marbre Sàrl
Gema Granit et Marbre Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of GEMA Sàrl is the supply and installation of various materials for interior design and building construction, particularly: granite, quartz, HI-MACS (acrylic stone), and tiling. These materials are offered for various applications, including: kitchens (e.g. countertops), bathrooms (e.g. washbasins, showers), floors and walls, stairs, and window sills. The company also provides consulting and planning services for these projects and collaborates with architects, designers, and construction companies.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered8
Supply and installation of granite
Supply and installation of granite for kitchens, bathrooms, window sills and cladding; wide choice of materials and on-site execution.
Supply and installation of quartz
Supply and installation of quartz with a wide variety of colours and finishes, for interior fit-outs and worktops.
Supply and installation of HI-MACS® acrylic stone
Supply and installation of HI-MACS® acrylic stone for kitchens, bathrooms and other interior fit-outs.
Supply and installation of tiling
Supply and installation of tiling for construction sites, in addition to the other coverings and fit-outs offered.
Kitchen fit-out
Fit-out of private and professional kitchens, including buffets, catering and furniture for a company restaurant.
Bathroom fit-out
Fit-out of bathrooms, shelves on furniture, made-to-measure furniture, showers, shower trays and seamless shower cabins.
Floor and wall coverings
Interior floor and wall coverings, exterior facades and staircases.
Window sills
Stone window sills for interior fit-outs, made using the materials offered by the company.
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4.1/5

Gema Granit et Marbre Sàrl

Trust & reputation

ranQ Trust Score of Gema Granit et Marbre Sàrl: 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.

Gema Granit et Marbre 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%
Gema Granit et Marbre Sàrl 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%
Gema Granit et Marbre Sàrl scores 83.3 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).83.322%
Gema Granit et Marbre Sàrl scores 3.4 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 35.3.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gema Granit et Marbre 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 October 2026.

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

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Location

Route du Pâqui 6
1720 Corminboeuf

At a glance

Legal form
Limited Liability Company
UID
CHE-109.047.221
Founded
2001 · 25 years
Last commercial register change
July 19, 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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