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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationArtistsDübendorfKERAMIKUM E. WIETRAK
KERAMIKUM E. WIETRAK Logo
Verified· 2 sourcesTrust Score
Summary

About the company

KERAMIKUM E. WIETRAK is a ceramic painting studio where customers choose ceramic pieces, paint them, and have them glazed and fired by the studio. The company offers open studio sessions, online bookings, and special events such as birthdays and team events.

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Products & services

Industry:ArtistsSports & Recreation Instruction
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KERAMIKUM E. WIETRAK

4
Ceramic Painting Studio
Ceramic painting during open studio hours with a selection of blanks, colours, tools and techniques; includes introduction, guidance, glazing, firing and collection of the finished piece.
Children's Ceramic Painting Birthday Party
Children's birthdays from age 8 with two hours onsite, a ceramic piece, materials, glazes and firing; own cake and food allowed, decoration available.
Private Ceramic Events
Private events outside regular opening hours for groups, with studio fee, individually selected ceramic piece, materials, glazes and firing.
At-Home Ceramic Painting Box
At-home ceramic painting box with a ceramic piece, paints, brushes and instructions, followed by return for glazing and firing.
Trust & reputation

ranQ Trust Score of KERAMIKUM E. WIETRAK

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Website authority, Media authority

Data basis 50% · As of October 2026

KERAMIKUM E. WIETRAK 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%
KERAMIKUM E. WIETRAK scores 46.3 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%
KERAMIKUM E. WIETRAK 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%
KERAMIKUM E. WIETRAK has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% 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
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 50%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Website authority, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Location

Riedgarten 3
8600 Dübendorf

At a glance

Legal form
Sole proprietorship
UID
CHE-156.093.623
Founded
2025 · 1 year
Last commercial register change
October 30, 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.
67.0
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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