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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsEnnetbürgena4 architekten gmbh
a4 architekten gmbh Logo
Verified· 3 sourcesTrust Score
Summary

About the company

a4 architekten gmbh is an architecture firm providing planning and project management services for building projects. Its services include feasibility studies, project and construction documentation, tendering, cost management and construction management.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered4
Architecture and planning services
Feasibility studies, project studies, preliminary design and building permit, detailed planning with execution plans, coordination with specialist planners.
Tendering and submission
Bill of quantities by construction processes, preparation of bills of specifications, comparison of bids, review of terms and awarding of works.
Cost management and cost estimation
Cost estimates according to eBKP-H and BKP, ongoing cost monitoring, budget estimate, construction accounting and final billing.
Construction management and site supervision
Project and construction management, representation of the client, coordination with architects, engineers and installation planners, ensuring construction quality and administration.
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3.8/5

a4 architekten gmbh

Trust & reputation

ranQ Trust Score of a4 architekten gmbh: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

a4 architekten gmbh scores 53.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.70.824%
  • 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.27.910%
  • 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%
a4 architekten gmbh scores 80.4 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%
a4 architekten gmbh scores 85.0 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).85.022%
a4 architekten gmbh scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

a4 architekten 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Im Baumgarten 8
6373 Ennetbürgen

At a glance

Legal form
Branch
UID
CHE-185.774.754
Founded
2001 · 25 years
Last commercial register change
September 27, 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.
76.0
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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