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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsAarauHunziker, Zarn & Partner AG
Hunziker, Zarn & Partner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Hunziker, Zarn & Partner AG is an engineering firm in hydraulic and water-resources engineering providing studies, project planning, construction execution and consultancy. Its specialist areas include hydrology, hydraulics, sediment transport, river morphology, flood protection, river revitalization, monitoring of revitalization measures, drone surveying and construction management.

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Products & services

Industry:Civil Engineering Firms
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Hunziker, Zarn & Partner AG

Studies
River engineering studies on hydrology, hydraulics, morphology, sediment transport and natural hazards; detailed analysis of complex issues as a basis for further project phases.
Project planning
Planning and implementation of flood protection and river renaturation projects, considering ecological, landscape-planning and urban-development aspects.
Execution
Site management and support of on-site work for projects in and with nature; close supervision due to fine design, structuring and unexpected situations.
Advisory
Advising clients from the launch of a project through to implementation; support for investigations, procedural issues and advisory mandates in Switzerland and in the border regions abroad.
Trust & reputation

ranQ Trust Score of Hunziker, Zarn & Partner AG: 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.

Hunziker, Zarn & Partner AG 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%
Hunziker, Zarn & Partner AG scores 93.9 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.82.07%
Hunziker, Zarn & Partner AG 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%
Hunziker, Zarn & Partner AG scores 27.2 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 35.54.34%
  • 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

Hunziker, Zarn & Partner AG 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

June 30, 2026Media
Rathausbrücke Zürich urbaNplus / Stefan Kurath / GmbH
swiss-architects.com
September 28, 2015Media
Ein Stück Schweizer Regenwald ist zurück Renaturierung der Rheinaue Rietheim
espazium.ch

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Location

Schachenallee 29
5000 Aarau

At a glance

Legal form
Corporation
UID
CHE-108.376.515
Founded
1997 · 29 years
Last commercial register change
July 26, 2024
Employees
21 to 50
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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