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

About the company

The core activity of Ruf Engineering includes planning and construction services, particularly in the fields of architecture, engineering services and general contracting, with a focus on real estate and management, mainly in the Zurich region.

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Offering

Products & services

Industry:Architecture FirmsCivil Engineering FirmsConstruction & Project Management
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Ruf Engineering

General Contractors
✓ Offered4
Architecture
Architectural office for extensions and renovations of heritage-protected buildings, conversion of older properties and merging of apartments in older buildings.
Engineering services
Engineering office from concept to implementation, civil engineering, municipal water engineering and infrastructure construction as well as building physics, building services, structural calculations, noise protection and thermal insulation.
General contractor
Planning, building permit submission, construction management and construction execution, specialised in heritage-protected buildings.
Property management and rentals
Management and letting of various apartments in the greater Zurich area, with vacancies, notices and forms on the website.
Trust & reputation

ranQ Trust Score of Ruf Engineering

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

Ruf Engineering 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%
Ruf Engineering 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.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%
Ruf Engineering 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%
Ruf Engineering 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

Uetlibergstrasse 354a
8045 Zurich

At a glance

Legal form
Sole proprietorship
UID
CHE-106.065.760
Founded
1990 · 36 years
Last commercial register change
September 22, 2022
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.
67.0
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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