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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZuricha4D Architekten AG
a4D Architekten AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

a4D Architekten AG plans and realises construction projects and offers services covering development, design, and construction from a single source. The website also presents current projects and new-build developments.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered5
Development
Development of residential building projects, from the early project idea to the preparation for realization; with a focus on new-build projects and integrated support.
Design
Architectural and design planning for residential building projects; includes the creative and functional development of new-build structures as well as the preparation of detailed and execution plans.
Realization
Realization of building construction and residential projects with coordination of specialist designers, contractors and site management, as well as processing of building permit submissions and execution planning.
Residential project development
Project development for new-build residential projects at various locations, including well-thought-out residential concepts and ongoing support for projects such as Hohliebi, Pomera, Oberdorf and Makani.
Execution planning
Detailed and execution plans, building permit submissions, colour and material concepts, as well as review and coordination of specialist designers’ and contractors’ plans.
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4.1/5

a4D Architekten AG

Trust & reputation

ranQ Trust Score of a4D Architekten AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

a4D Architekten AG 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%
a4D Architekten AG scores 85.5 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.100.012%
  • 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%
a4D Architekten AG 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%
a4D Architekten AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

a4D Architekten AG 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 October 2026.

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

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Location

Weberstrasse 4
8004 Zurich

At a glance

Legal form
Corporation
UID
CHE-105.101.459
Founded
1999 · 27 years
Last commercial register change
October 1, 2024
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.
100.0
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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