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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 IndustryAzmoosSwiss Prometal GmbH
Swiss Prometal GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Swiss Prometal GmbH encompasses two main areas: 1. **Natural Stone Production and Marketing**: The company produces and distributes a wide range of natural stone products, including wall stones, quarry stones, granite design blocks, paving stones, terrace slabs, granite slabs, granite steps and stairs. 2. **Recycling of Non-Ferrous Metals**: The company specializes in the professional processing and refining of metal scrap, particularly aluminum, and supplies the aluminum processing industry worldwide.

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Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
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4.0/5

Swiss Prometal GmbH

✓ Offered3
Natural Stone Products for Landscaping
Natural stone walls, masonry and ashlar blocks, granite slabs, paving stones, palisades, terrace slabs and granite steps for landscaping and private customers.
Landscaping and Dry Stone Wall Construction
Dry stone walls, retaining walls, paving installation, kerb setting, plus planning and advice for garden design and wall construction.
Non-Ferrous Metal Recycling and Metal Trading
Processing, classification and material-specific reworking of non-ferrous scrap, plus trading in aluminium, alloy and steel scrap including transport formalities.
Trust & reputation

ranQ Trust Score of Swiss Prometal GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Swiss Prometal GmbH scores 65.8 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.67.124%
  • 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.52.910%
  • 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%
Swiss Prometal GmbH 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%
Swiss Prometal GmbH 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%
Swiss Prometal GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Swiss Prometal GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Seidenbaumstrasse 42
9478 Azmoos
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-351.271.261
Founded
2014 · 12 years
Last commercial register change
August 21, 2026
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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