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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectZurichrao gmbh
rao gmbh Logo
Verified· 2 sourcesTrust Score
Summary

About the company

rao gmbh is an architecture practice offering architectural services, planning and construction management. Its work focuses on renovations and energy retrofits, as well as new-build projects using ecological construction methods.

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Service area

Offering

Products & services

Industry:Architect
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4.1/5

rao gmbh

✓ Offered4
Architectural planning
Architecture with planning for new builds, conversions and extensions, option studies, feasibility studies and project development for residential buildings and other construction projects.
Site management
Site management for renovations, new builds and conversions, including coordinated execution for energy retrofits and residential construction projects.
Renovation and refurbishment
Renovations and refurbishments of residential buildings, including complete refurbishments, energy retrofits, façade and roof refurbishments, as well as conversions with alterations to floor plans and wet rooms.
Energy consulting and energy retrofits
Energy consulting and energy retrofits focusing on building fabric, insulation, photovoltaic systems, solar thermal, heat pumps and Minergie-oriented planning.
Trust & reputation

ranQ Trust Score of rao gmbh: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

rao 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%
rao gmbh scores 78.5 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.89.612%
  • 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%
rao gmbh scores 86.7 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).86.722%
rao gmbh scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

rao 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 November 2026.

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

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Location

Langstrasse 200
8005 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-378.384.320
Founded
2015 · 11 years
Last commercial register change
September 17, 2019
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHZurich
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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