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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryRetail & CommerceArt & Antique TradeBaselBriefmarken Helvetia, Adrian Wyss
Briefmarken Helvetia, Adrian Wyss Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Briefmarken Helvetia is the trade in stamps, particularly the sale and auction of classic and semi-classic stamps and covers, as well as other philatelic items such as postcards and coins. The company regularly offers mail auctions and is also present at stamp fairs and events.

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Offering

Products & services

Industry:Art & Antique Trade
✓ Offered5
Stamp Auctions
Remote auctions for classic and semi-classic stamps and postal covers, mainly Switzerland but also Europe and overseas; in addition, airmail, varieties, postal stationery, collections and estates.
Consignment and Valuation Service for Collections
Acceptance of consignments as well as appraisals of stamps, collections and estates; clarifications by phone or e-mail, viewing by appointment.
Philatelic Online Trading
Internet trading in small lots, stamps, coins, banknotes and postcards; in addition, ongoing auctions in the Ricardo shop.
Collectibles
Albums, supplements, stamp covers, numismatic items, optical inspection devices, catalogues and other accessories from Leuchtturm, Safe and Lindner.
Participation in Stamp Fairs
On-site presence at Mubaphil fairs as well as at the fair in Rheinfelden; stand support and personal contact with customers at trade fairs and collectors' fairs.
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4.1/5

Briefmarken Helvetia, Adrian Wyss

Trust & reputation

ranQ Trust Score of Briefmarken Helvetia, Adrian Wyss: 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.

Briefmarken Helvetia, Adrian Wyss 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%
Briefmarken Helvetia, Adrian Wyss scores 77.5 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.97.712%
  • 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%
Briefmarken Helvetia, Adrian Wyss scores 83.3 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).83.322%
Briefmarken Helvetia, Adrian Wyss scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Briefmarken Helvetia, Adrian Wyss 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

Lautengartenstr. 13
4052 Basel

At a glance

Legal form
Sole proprietorship
UID
CHE-467.434.960
Founded
2012 · 14 years
Last commercial register change
December 4, 2014
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.67.06%
  • 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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