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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectZurichKonrad Roslak
Konrad Roslak Logo
Verified· 2 sourcesTrust Score
Summary

About the company

RDZ is an architecture and interior design studio specializing in the planning and realization of construction projects, particularly in the areas of office buildings and hospitality projects. Core activities include, among others, feasibility studies, architectural concepts, CGI visualizations, building permits, budget planning, execution planning, interior architecture, and product design.

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Service area

Offering

Products & services

Industry:ArchitectAdvertising agency
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4.1/5

Konrad Roslak

✓ Offered4
Architectural Concepts
Feasibility studies, architectural concepts, building permits, execution planning and architectural visualization for private residences and commercial spaces.
Interior Design
Interior design for private residences and commercial spaces, focusing on clarity, functionality and emotional resonance.
Design Consulting
Consultancy, budget planning and feasibility studies for design- and architecture-related projects.
Product Design
Product design for custom furniture and curated objects as part of architecture, interior and brand projects.
Trust & reputation

ranQ Trust Score of Konrad Roslak: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Konrad Roslak 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%
Konrad Roslak scores 69.6 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.79.212%
  • 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%
Konrad Roslak 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%
Konrad Roslak scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Konrad Roslak 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 November 2026.

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

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Location

Zollikerstrasse 132
8008 Zurich

At a glance

Legal form
Sole proprietorship
UID
CHE-308.170.009
Founded
2018 · 8 years
Last commercial register change
May 7, 2025
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHZurich
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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