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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryZurichStudio Roka GmbH
Studio Roka GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Studio Roka is a creative studio specializing in the production and teaching of ceramic products. The core activities include: The production of ceramic products in its own studio, Teaching ceramic courses for beginners and advanced learners, Organizing workshops, team events and private lessons, Selling ceramic products in its own shop, and Administering and managing the studio, including coordinating courses and customer care.

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Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
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4.3/5

Studio Roka GmbH

✓ Offered9
Pottery courses
Pottery courses for beginners and advanced participants, including hand-building and pottery wheel courses, discovery courses and intensive courses in Zurich.
Open workshop
Open workshop for working independently with clay, with studio access and a membership model.
Painting ceramics
Painting ceramics in Zurich, as a stand-alone studio offer for creative design of ceramic objects.
Events
Creative events and occasions in the studio for companies, private groups and children's birthday parties, on request with apéro and drinks.
Clay Breakfast Club
Creative workshops with breakfast and apéro in the studio, as a combined social and pottery event.
Clay Apero Club
Pottery and ceramics format with apéro, as a sociable workshop in the studio.
Membership
Membership for regular access to the studio and workshop, with use of the open studio offerings.
Firing service
Firing service for ceramic work, including information on kiln firing and the firing service.
Online Masterclass
Online masterclass on ceramic techniques, currently offered as the Plates Masterclass with process guidance and the possibility for feedback.
Trust & reputation

ranQ Trust Score of Studio Roka GmbH: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Studio Roka GmbH scores 87.4 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.87.924%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.76.210%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.100.08%
Studio Roka GmbH scores 65.0 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.58.012%
  • 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%
Studio Roka 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%
Studio Roka GmbH scores 60.0 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 35.60.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Studio Roka GmbH reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 19 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 19 reviews across all connected sources

Sources
GGoogle519
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Location

Agnesstrasse 12
8004 Zurich
Opening hours
Mon
12:00 - 17:00
Tue
Closed
Wed
Closed
Thu
14:00 - 18:00
Fri
14:00 - 18:00
Sat
12:00 - 16:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-487.758.880
Founded
2022 · 4 years
Last commercial register change
May 5, 2022
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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