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

About the company

The core activity of Korduna AG is the provision of services in the fields of architecture, spatial planning and real estate. Specifically, this includes: Architecture: planning and design of buildings and spaces; Spatial planning: development of urban planning concepts and plans; Real estate: consulting and support for the purchase, sale, financing and management of real estate. The company positions itself as a partner for its customers, offering individual and sustainable solutions for their construction and real estate projects.

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Offering

Products & services

Industry:Architecture Firms
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4.1/5

Korduna AG

✓ Offered6
Architecture
Concept and design, project development and planning in accordance with SIA phases, building permit submissions and dealings with authorities, tendering and detailed planning, support for implementation through to completion.
Spatial planning
Development of development concepts and site studies, local planning support and development concepts, support for conversions and district development, interdisciplinary planning with transport, landscape and the environment.
Real estate consulting
Advisory services for purchase, sale and financing, support for conversions or renovations, development of usage concepts and feasibility studies, analysis and assessment of plots of land and real estate properties.
Property management and development
Management and development of real estate portfolios, strategies for value preservation and optimisation of property holdings, long-term development of assets and portfolios.
Initial consultation for construction projects
Initial consultation for construction projects, renovations and conversions, clarification of building regulations and construction options, site and feasibility analyses, support in the early stages of the project.
Construction law and planning advisory
Clarification of planning and construction law issues, support with zoning plans, building regulations and special use provisions, mediation between the client, authorities and specialist planners.
Trust & reputation

ranQ Trust Score of Korduna AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Korduna AG scores 69.5 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.76.724%
  • 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.45.610%
  • 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.78.08%
Korduna 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%
Korduna 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%
Korduna AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Korduna AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rheinstrasse 26
4414 Füllinsdorf
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.800.812
Founded
2006 · 20 years
Last commercial register change
January 27, 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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