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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsBiel/Bienneitreas GmbH
itreas GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of itreas GmbH is construction management and consulting in all construction-related matters, particularly in the renovation sector, with a special focus on sustainability, building ecology and energy efficiency.

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Offering

Products & services

Industry:Architecture FirmsConstruction & Project Management
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4.1/5

itreas GmbH

✓ Offered6
Construction management
Construction management for renovations, new builds and conversions; project phases from the study through execution to handover, including with partners for larger projects.
Advisory services for construction matters
Advice on all construction matters, including cost analyses, cost estimation, construction controlling, feasibility studies and support for the preliminary project.
Renovations
Renovations of residential houses, village houses, multi-family buildings and other properties, including full-scale renewals, total conversions and alterations.
Architecture and construction projects
Support and delivery of larger architecture and construction projects from the study through planning to realization and handover.
Client representation
Client representation for new builds and renovations, in particular for multi-family houses and housing development projects.
Building ecology and energy efficiency
Advice and planning focused on sustainability, building ecology and energy efficiency in construction and renovation.
Trust & reputation

ranQ Trust Score of itreas GmbH: 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.

itreas GmbH 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%
itreas GmbH scores 83.0 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%
itreas GmbH 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%
itreas GmbH scores 11.1 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 35.11.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

itreas GmbH 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

Freiestrasse 24
2502 Biel/Bienne

At a glance

Legal form
Limited Liability Company
UID
CHE-110.505.302
Founded
2004 · 22 years
Last commercial register change
December 5, 2016
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.
88.0
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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