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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZurichJONGER ARCHITEKTUR + STÄDTEBAU GmbH
JONGER ARCHITEKTUR + STÄDTEBAU GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

JONGER ARCHITEKTUR + STÄDTEBAU GmbH is an architecture and urban design practice that plans residential and mixed-use buildings, conversions and site developments. The office regularly participates in competitions, addresses settlement planning and housing topics, and is involved in architectural education and competition juries.

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3.8/5

JONGER ARCHITEKTUR + STÄDTEBAU GmbH

✓ Offered4
Architecture and urban planning projects
Architecture, urban planning, and site development projects, new builds, conversions, renovations, change of use, and restorations; residential, commercial, and cultural projects as well as competitions and design plans.
Competition handling
Processing of architecture competitions and study commissions with rankings, project development, and conceptual contributions for housing construction, settlement planning, and conversions of existing buildings.
Assessment of architecture competitions
Serving on assessment panels for architecture competitions and providing professional input in the evaluation of projects.
Training of architects
Involvement in the training of architects as well as academic teaching and supervision activities in the architectural field.
Trust & reputation

ranQ Trust Score of JONGER ARCHITEKTUR + STÄDTEBAU GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 96% · As of October 2026

JONGER ARCHITEKTUR + STÄDTEBAU GmbH scores 56.5 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.68.224%
  • 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.70.08%
JONGER ARCHITEKTUR + STÄDTEBAU GmbH scores 65.0 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.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%
JONGER ARCHITEKTUR + STÄDTEBAU 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%
JONGER ARCHITEKTUR + STÄDTEBAU GmbH scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

JONGER ARCHITEKTUR + STÄDTEBAU GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Eichstrasse 29
8045 Zurich
Opening hours
Mon
08:30 - 17:30
Tue
08:30 - 17:30
Wed
08:30 - 17:30
Thu
08:30 - 17:30
Fri
08:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-142.389.738
Founded
2022 · 4 years
Last commercial register change
July 17, 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.88.06%
  • 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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