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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementUnterengstringenTonascia AG
Tonascia AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Tonascia AG develops and implements real estate projects for property owners, with a focus on investor and user needs and sustainable development. Its core services include site acquisition, preliminary planning, construction project management, building permits and handing over approved projects to general contractors.

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Offering

Products & services

Industry:Construction & Project ManagementReal Estate Project Development
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Tonascia AG

✓ Offered3
Property development and project planning
Property development for landowners and investors, from land acquisition through pre-projects, construction projects and building permits to handover to general contractors.
Realisation of residential developments
Realisation of multi-family houses, twin single-family homes and residential complexes, including projects with apartments of different sizes and in different locations.
Realisation of hotel and residence projects
Realisation of hotel, aparthotel and residence projects, including 4-star residences, hotels and aparthotels with rooms, suites, apartments and villas.
Trust & reputation

ranQ Trust Score of Tonascia AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Tonascia 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%
Tonascia 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%
Tonascia 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%
Tonascia 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%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Obere Hönggerstrasse 1
8103 Unterengstringen

At a glance

Legal form
Corporation
UID
CHE-106.527.447
Founded
1989 · 37 years
Last commercial register change
February 19, 2026
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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