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

About the company

Jürg Bumann GmbH is an architecture practice that handles building projects from conception through execution. Its work includes object design, interior fit-outs and renovation, architectural projects, urban planning, project development and building management.

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Service area

Offering

Products & services

Industry:Architect
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4.1/5

Jürg Bumann GmbH

✓ Offered
6
Architectural services
Design and delivery of architectural projects, from content and theoretical project work through to economic and schedule planning and on to technical execution.
Building design
Building design for a range of scales and tasks, including individual architectural projects and construction-related assignments.
Interior fit-out and refurbishment
Interior fit-out and refurbishment of buildings, from planning to quality-assured execution.
Urban planning projects
Urban planning assignments and site developments, from studies and master plans to competition and project work.
Real estate developments
Real estate project developments for residential and commercial buildings, including feasibility, preliminary design, building design, building submission, execution and sale.
Building management
Building management as a support service for construction projects and existing properties.
Trust & reputation

ranQ Trust Score of Jürg Bumann 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.

Jürg Bumann 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%
Jürg Bumann GmbH scores 89.7 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.82.07%
Jürg Bumann GmbH scores 86.7 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).86.722%
Jürg Bumann GmbH scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jürg Bumann 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

Haldenstrasse 89
8055 Zurich
Opening hours
Mon
08:30 - 18:30
Tue
08:30 - 18:30
Wed
08:30 - 18:30
Thu
08:30 - 18:30
Fri
08:30 - 18:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-112.390.607
Founded
2005 · 21 years
Last commercial register change
February 21, 2018
Employees
21 to 50

Active in 1 of 26 cantons

  • 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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