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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsWinterthurnagel ag
nagel ag Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Nagel Architektur & Baumanagement is the planning, management and implementation of high-rise building projects, including architecture, construction management and project development, with a focus on quality, functionality and economic efficiency.

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Products & services

Industry:Architecture Firms
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4.0/5

nagel ag

8
Architecture
Preliminary studies, project planning and building submissions, execution and detail planning, structural and material proposals for building projects.
Interior design
Interior design and design concepts, furnishing planning, spatial concepts as well as office and layout planning for restructurings, expansions and new locations.
Project & construction management
Coordination of all planning and construction processes, performance specifications, schedule planning, cost estimates as well as monitoring and control of construction work on site.
Overall management & planning
Coordination of all planning services, point of contact for clients and the design team, as well as monitoring of all construction processes for complex construction projects.
Client advisory
Advice from the search for the plot through to checking the construction final accounts, with analysis of needs, solution proposals and references to possible difficulties.
Evaluations & analyses
Highlighting advantages and disadvantages, documentation of studies and search for the optimal solution for plots of land, properties or rental areas.
Building physics
Noise assessment reports with CadnaA, proofs, execution inspections in the area of energy and sound insulation, as well as advice on thermal, moisture and sound protection.
Fire protection
Fire protection planning and specifications up to QSS2, authority submissions, on-site supervision during execution and final documentation in compliance with the applicable standards.
Trust & reputation

ranQ Trust Score of nagel ag: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

nagel ag scores 51.1 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.60.724%
  • 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.40.910%
  • 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%
nagel ag scores 89.3 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.70.07%
nagel ag 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%
nagel ag scores 51.4 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 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

nagel ag reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 4 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
4
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle44
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hintermühlenstrasse 4
8409 Winterthur
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.566.857
Founded
2002 · 24 years
Last commercial register change
September 10, 2024
Employees
11 to 20
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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