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

About the company

The company A. Somogyi AG is an architectural firm and general contractor specializing in the planning, realization, and execution of construction projects. The core activities include: Architecture: Design and planning of buildings, particularly single-family homes, multi-family homes, industrial and commercial buildings, as well as renovations and refurbishments. General Contracting: Execution of construction projects, including construction work, construction management, and project management. Consulting and Support for Building Owners: The company offers comprehensive consulting and support for building owners, from the initial idea to the completion of the project. Thus, the company provides a comprehensive service in the construction industry, from planning to the realization of construction projects.

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Offering

Products & services

Industry:Architecture FirmsGeneral Contractors
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4.1/5

A. Somogyi AG

✓ Offered2
Architecture
Design, project management and site supervision for single-family homes, multi-family buildings as well as industrial and commercial buildings; conversion, extension, renovation and refurbishment.
General contracting
General contracting for construction projects with coordination of construction execution, building cost control, scheduling and support through to handover of the keys and processing of warranty services.
Trust & reputation

ranQ Trust Score of A. Somogyi AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

A. Somogyi 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.
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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%
A. Somogyi AG scores 85.5 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.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%
A. Somogyi AG 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%
A. Somogyi AG scores 11.7 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 35.11.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

A. Somogyi 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

Hofstrasse 38
8590 Romanshorn

At a glance

Legal form
Corporation
UID
CHE-107.964.980
Founded
1981 · 45 years
Last commercial register change
September 16, 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.
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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