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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringAathal-SeegräbenZüst Engineering AG
Züst Engineering AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Züst Engineering AG is an independent engineering and consulting firm specializing in complex planning and engineering tasks and in initiating, developing and managing projects in the field of sustainability. Its competencies include Systems Engineering, ecodesign, simulation and Lean Six Sigma, and it provides advisory services for industrial and administrative clients.

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Products & services

Industry:Technical Consulting & Engineering
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3.9/5

Züst Engineering AG

6
Sustainable engineering and planning projects
Complex planning and engineering tasks, initiation, development and management of demanding interdisciplinary projects in the sustainability field, including tailored solutions.
Lean Six Sigma
Method system to improve cost efficiency, sustainability and process quality, including analysis of material, information and value streams as well as implementation and control.
Simulation
Modeling and simulation of systems and scenarios, early evaluation of concepts, thermal optimization, digital prototypes, and support for recycling and material flow optimization.
Ecodesign of products and services
Systematic optimization of products and services across all life phases, including analysis, assessment of weak points, strategy development, improvement measures and integration within the company.
Systems Engineering
Methodology for interdisciplinary teams to structure complex projects, with life-phase model, problem-solving cycle, project structuring and practical implementation support.
Lectures and courses
Lectures and intensive block courses on sustainable product design, systems engineering, ecodesign, environmental technology and sustainability management at universities and with course providers.
Trust & reputation

ranQ Trust Score of Züst Engineering AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Züst Engineering AG scores 53.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.70.824%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Züst Engineering AG scores 85.5 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%
Züst Engineering AG 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%
Züst Engineering AG scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Züst Engineering AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Eichbühlstrasse 6
8607 Aathal-Seegräben

At a glance

Legal form
Corporation
UID
CHE-115.873.411
Founded
2010 · 16 years
Last commercial register change
December 1, 2021
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.
100.0
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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