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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryRetail & CommerceArt dealerGoldachKunstbroker GmbH
Kunstbroker GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Kunstbroker GmbH is an owner-managed online antiquarian bookshop and art dealer specialising in rare photographs, books, prints and posters. It buys and sells these items, arranges art transactions, and provides advice, valuations and assistance with the documentation of collections.

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Presence

Service area

Offering

Products & services

Industry:Art dealer
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3.9/5

Kunstbroker GmbH

✓ Offered6
Buying
Buying rare books, photographs, prints and posters; assessment of complete collections or estates; commission sales by arrangement.
Advisory
Advisory on antiquarian books, photographic prints, printed graphic works and artists’ posters; questions regarding sale, restoration, presentation and provenance.
Valuations
Valuations and expert reports for rare books, original photographs, graphic works, posters, antiques, artworks and collections; also for insurance valuations and estate division.
Search service
Search mandates for artworks or books; collection of desiderata and feedback once suitable objects have been found.
Collection cataloguing
Scholarly cataloguing of collections and preparation of catalogues; individual advisory on documenting collections.
Art broker
Handling purchases via auctions, galleries and antiquarian shops; brokerage for direct sales of artworks, anonymously on request.
Trust & reputation

ranQ Trust Score of Kunstbroker GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of November 2026

Kunstbroker 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%
Kunstbroker GmbH scores 61.5 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.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%
Kunstbroker GmbH scores 85.0 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).85.022%
Kunstbroker GmbH scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kunstbroker GmbH reaches a ranQ Trust Score of 3.9 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

Wuhrstrasse 5
9403 Goldach

At a glance

Legal form
Limited Liability Company
UID
CHE-407.917.166
Founded
2023 · 3 years
Last commercial register change
August 28, 2023
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SGGoldach
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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