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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryRetail & CommerceOnline ShopsBrienzwilerPiastra GmbH
Piastra GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Piastra GmbH operates the Vino Piastra online shop, retailing wines, tasting packs and gift sets—primarily from Bulgarian producers—and offering wine club and subscription options, shipping and customer contact details.

AI-generated
Offering

Products & services

Industry:Online ShopsRetail - Beverages & Spirits
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3.6/5

Piastra GmbH

✓ Offered6
Wines
Rosé wine, red wine, white wine and sparkling wine from Bulgarian vineyards, as well as Vino Piastra house wines, sorted by vintage and grape variety.
Tasting packages
Curated tasting packages with selected wines, such as Winterglanz, Winterküche, Entlang der Donau, Von Hand zum Glas and other sets.
Wine subscription
Annual subscription and sample subscription in the Gentlemen´s Club with a monthly selected wine box, plus combinations with cigar and accessories.
Gift vouchers
Vino gift vouchers in a variable price range from CHF 30.00 to CHF 200.00 to give as a present in the online shop.
Food wines
Selection of wines categorised as food wines, with red, white and rosé wines from different vintages.
Wines by vineyard
Wine selection by vineyard, including Midalidare Estate, Burgozone, ROXS Winery, Chateau Boshnakoff, Vino Piastra, Villa Melnik and Bendida Winery.
Trust & reputation

ranQ Trust Score of Piastra GmbH: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

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Data basis 54% · As of October 2026

Piastra GmbH 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%
Piastra GmbH scores 50.8 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.25.012%
  • 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%
Piastra GmbH 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%
Piastra GmbH scores 3.7 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 35.3.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Piastra GmbH reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». 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.

Knowledge

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Location

Aenderdorfgasse 24
3856 Brienzwiler

At a glance

Legal form
Limited Liability Company
UID
CHE-472.828.460
Founded
2025 · 1 year
Last commercial register change
March 6, 2025
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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