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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryRetail & CommerceJewellerWinterthurSenn & Ismaili AG
Senn & Ismaili AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Senn & Ismaili AG is a buying and selling firm for precious metals, jewelry, luxury watches and collectibles. The company purchases and sells items such as scrap gold, silver, dental gold, branded watches, coins, antiques and luxury handbags, and provides services including repairs, valuations, certificates, house visits and estate clearances; selected items are also offered via the online marketplace Ricardo.

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Service area

Offering

Products & services

Industry:Jeweller
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Senn & Ismaili AG

✓ Offered6
Purchase of watches, jewellery and precious metals
Purchase of old gold, old silver, jewellery, dental gold, luxury watches, branded watches, coins, antiques and other valuables; free assessment, quotation, immediate payment, home visits.
Sale of watches, jewellery and precious metals
Sale of luxury watches, timepieces, jewellery, coins and precious-metal bars via Ricardo.ch; with transparent processing and selection of various pieces.
Valuation and appraisal of valuables
Free valuations, appraisals and fair offers for watches, jewellery, precious metals, coins, antiques and other valuables.
Repairs for watches and jewellery
Repairs for watches and jewellery, including servicing of defective watches and support regarding the upkeep of the pieces.
Issuing certificates
Issuing certificates as part of the valuation and processing of watches, jewellery and other valuables.
Home visits
Home visits for the valuation and processing of watches, jewellery and other valuables.
Trust & reputation

ranQ Trust Score of Senn & Ismaili AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of November 2026

Senn & Ismaili AG 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.
x
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%
Senn & Ismaili AG scores 64.1 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.50.012%
  • 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%
Senn & Ismaili AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
Senn & Ismaili AG 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%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of November 2026.

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

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Location

Neuwiesenstrasse 61
8400 Winterthur

At a glance

Legal form
Corporation
UID
CHE-339.856.835
Founded
2023 · 3 years
Last commercial register change
March 21, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHWinterthur
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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