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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZurichRUDAZ ARCHITEKTEN GmbH
RUDAZ ARCHITEKTEN GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of RUDAZ ARCHITEKTEN is the planning and realization of sustainable and ecological building projects, particularly in the areas of residential construction, renovation and refurbishment of buildings, as well as urban planning. The architects place emphasis on integrating energetic autonomy, longevity and a low ecological footprint. They design and realize buildings that are tailored to the needs of users and blend into the urban context.

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Products & services

Industry:Architecture Firms
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3.7/5

RUDAZ ARCHITEKTEN GmbH

✓ Offered
3
Architectural planning
Planning robust, resource-efficient and circular houses; dealing with existing fabric, further developing contexts and a sustainable planning and construction process.
Renovation and existing-building projects
Handling existing fabric, energy-efficient renovations, conversions, extensions and rebuilding of residential and existing buildings.
Competition planning
Project competitions and general planner competitions for residential buildings, school facilities, multi-purpose halls and urban-planning tasks.
Trust & reputation

ranQ Trust Score of RUDAZ ARCHITEKTEN GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 100% · As of October 2026

RUDAZ ARCHITEKTEN GmbH scores 47.2 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.63.624%
  • 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.17.610%
  • 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.35.08%
RUDAZ ARCHITEKTEN GmbH scores 77.2 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.86.512%
  • 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%
RUDAZ ARCHITEKTEN GmbH scores 86.7 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).86.722%
RUDAZ ARCHITEKTEN GmbH scores 15.0 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 35.20.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

RUDAZ ARCHITEKTEN GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 4.0 out of 5 stars from 1 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle41
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 9, 2024Media
Sanierung eines Doppelhauses in Volketswil: Stahlfachwerk im Wohnhausbau
baublatt.ch

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Location

Flüelastrasse 6
8048 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-366.401.986
Founded
2016 · 10 years
Last commercial register change
May 20, 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.
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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