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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryIndustryMetal processorBiel/BienneEstoppey-Addor SA
Estoppey-Addor SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Estoppey-Addor SA provides galvanic, chemical and mechanical surface treatments for components used in sectors including watchmaking, precision engineering, jewellery, medical technology and electronics. Its services include decorative and technical coatings, as well as supplementary processes such as sandblasting, heat treatment and passivation.

AI-generated
Offering

Products & services

Industry:Metal processor
✓ Offered6
Surface treatments
Galvanic, chemical and mechanical surface treatments for turned parts, precision mechanics, watchmaking, jewellery, non-implantable medical devices and electronics.
Decorative finishing
Decorative treatments to enhance parts and improve technical properties, including corrosion protection; including gilding, rhodium plating and decorative black chrome.
Technical treatments
Treatments to modify the technical properties of components, to increase wear and corrosion resistance and to improve the coefficient of friction; including hard chrome and chemical nickel.
Additional treatments
Additional treatments before or after galvanic processes, including sandblasting, micro bead grinding, heat treatment, epilaminisation and passivation.
Protective coating & paint application
Protective coating, lacquer application on previously engraved parts and permanent lacquers on watch components, including for two-tone results.
Decoration
Watch decorations such as Geneva stripes, perlaging, spiral graining, sunburst decoration and straight lines, executed with a grinding stone or abrasive paper.
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4.1/5

Estoppey-Addor SA

Trust & reputation

ranQ Trust Score of Estoppey-Addor SA: 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.

Estoppey-Addor SA 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%
Estoppey-Addor SA scores 89.3 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.70.07%
Estoppey-Addor SA 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%
Estoppey-Addor SA scores 71.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Estoppey-Addor SA 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

Wasenstrasse 32
2502 Biel/Bienne

At a glance

Legal form
Corporation
UID
CHE-101.631.793
Founded
1995 · 31 years
Last commercial register change
December 13, 2023
Employees
11 to 20
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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