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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryRetail & CommerceArt & Antique TradeGoldachKunstbroker GmbH
Kunstbroker GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Kunstbroker GmbH is an owner-operated online antiquarian bookseller and art dealer focused on rare photographs, books, prints and posters. Services include purchasing, advisory and appraisal services, search services, collection cataloguing and mediation/consignment sales.

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Offering

Products & services

Industry:Art & Antique Trade
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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 October 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.
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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 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%
Kunstbroker GmbH scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

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 October 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
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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