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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZurichZach + Zünd Architekten GmbH BSA SIA
Zach + Zünd Architekten GmbH BSA SIA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Zach + Zünd Architekten GmbH BSA SIA is an architecture firm that works on architectural and planning projects. The platform presents selected works and project examples from the office.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered3
Architectural Services
Architectural services for residential developments, office and commercial buildings, retirement and care facilities, schools, plus conversions, refurbishments, competitions and test planning.
Competition and Study Services
Competitions, project competitions, project study commissions, test planning and framework studies for public and private construction projects.
Conversion and Refurbishment Planning
Conversions, full refurbishments and renovations of residential buildings, villas, school buildings, institute buildings and other existing properties.
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4.1/5

Zach + Zünd Architekten GmbH BSA SIA

Trust & reputation

ranQ Trust Score of Zach + Zünd Architekten GmbH BSA SIA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

Zach + Zünd Architekten GmbH BSA SIA 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%
Zach + Zünd Architekten GmbH BSA SIA scores 83.0 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%
Zach + Zünd Architekten GmbH BSA SIA scores 85.0 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).85.022%
Zach + Zünd Architekten GmbH BSA SIA scores 50.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Zach + Zünd Architekten GmbH BSA SIA 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 58%, 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.

Press

Media

May 25, 2017Media
Respektvolle Verdichtung der Gartenstadt - Wohnüberbauung Wartstrasse/Aeckerwiesenstrasse, Winterthur 2017
swiss-architects.com
November 8, 2012Media
Blick zum Schloss
swiss-architects.com
August 16, 2012Media
Parkhaus Opéra
swiss-architects.com

Knowledge

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Location

Feldstrasse 24
8004 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-112.708.916
Founded
2006 · 20 years
Last commercial register change
October 28, 2025
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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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