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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryIT & CommunicationPublishingChurCalven Verlag AG
Calven Verlag AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company Antiquariat Narrenschiff is an antiquarian bookshop and bookstore specializing in the sale of books, pictures, graphics, postcards, photographs, and other cultural goods. It also offers an online catalog that allows customers to search for and order specific books. In addition, the company is also active as a publisher, particularly with the Calven Verlag, which publishes books by local authors.

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Offering

Products & services

Industry:PublishingArt & Antique Trade
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4.1/5

Calven Verlag AG

✓ Offered5
Book publishing
New releases, poetry volumes, novels, works on cultural history and local history books with ISBN and price details in the online shop.
Antiquarian bookshop
Antiquarian books, old prints, manuscripts, pictures and graphic works; online catalogue with search functions, ordering option and interest in purchasing rare items.
Art dealing
Antiquarian and modern works of art, including paintings, drawings, lithographs, etchings, copper engravings and posters in the online shop.
Photography
Original photographs and framed photographs with historical motifs, artist portraits and views in the online shop.
Autograph trading
Letters, postcards and signed autographs of various artists and public figures in the online catalogue.
Trust & reputation

ranQ Trust Score of Calven Verlag AG: 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.

Calven Verlag 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%
Calven Verlag AG scores 85.5 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.100.012%
  • 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%
Calven Verlag AG 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%
Calven Verlag AG scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Calven Verlag AG 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

Karlihofplatz 1
7000 Chur

At a glance

Legal form
Corporation
UID
CHE-103.949.697
Founded
1963 · 63 years
Last commercial register change
April 19, 2010
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.
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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