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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryMetal IndustryBiel/BienneEstoppey-Addor Chromage SA
Estoppey-Addor Chromage SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Estoppey-Addor Chromage SA performs electroplating, chemical and mechanical surface treatments. Services include decorative and technical platings (including black chrome), protective coating application, sand/micro‑blasting and watch decorations for sectors such as turned parts, precision mechanics, watchmaking, jewellery, non‑implantable medical devices and electronics.

AI-generated
Offering

Products & services

Industry:Metal Industry
✓ Offered5
Decorative surface finishes
Decorative treatments for metal parts, using galvanic processes to achieve the desired colours and improved technical properties, in particular corrosion protection; also on racks or in bulk.
Technical treatments
Technical surface treatments to increase resistance to wear, corrosion and friction; including Hardalloy® W, black chrome, hard chrome, electroless nickel, Nickelflon® Ni-PTFE, Hardanic® and galvanic nickel.
Additional treatments
Additional treatments before or after galvanic processes, including sandblasting, micro-bead grinding, heat treatment, epilamising and passivation; for a matte, semi-gloss or protected finish.
Protective layer for later painting and varnish application
Protective covering for engravings as well as permanent lacquer application on watch components, including two-colour results and coloured engravings such as texts, motifs or logos.
Decoration
Watch decorations such as Geneva stripes, sunburst decoration, snail finishing, pearling and satin-finished straight lines; can be carried out depending on the material using a grinding stone or sandpaper.
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4.1/5

Estoppey-Addor Chromage SA

Trust & reputation

ranQ Trust Score of Estoppey-Addor Chromage SA: 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.

Estoppey-Addor Chromage 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 Chromage SA scores 83.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • 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.70.07%
Estoppey-Addor Chromage 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 Chromage SA scores 71.4 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 35.71.44%
  • 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 Chromage 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 October 2026.

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

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Location

Rue du Wasen 32
2502 Biel/Bienne

At a glance

Legal form
Corporation
UID
CHE-347.132.484
Founded
2016 · 10 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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