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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorLocarnoDionea SA
Dionea SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Dionea SA encompasses consulting and planning in the fields of environment, territory, nature and landscape, particularly in the following areas: environmental consulting and planning, territorial planning and development, nature conservation and management, landscape planning and design, and forestry and forest management. The company offers services such as the creation of plans and strategies for the sustainable development of territories, the implementation of environmental studies and analyses, the planning and implementation of nature conservation projects, and the consulting of municipalities and other institutions on environmental and territorial planning issues.

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Offering

Products & services

Industry:Sustainability Sector
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4.1/5

Dionea SA

✓ Offered4
Environmental consulting
Environmental impact assessments, environmental support during works, monitoring for water, air, noise and soil, expert reports on radon, hazardous substances and remediation of contaminated sites.
Spatial planning
Regional, supra-municipal, municipal and local planning; preparation of master plans, detailed plans, neighbourhood plans and studies supporting planning.
Nature and landscape
Design and site supervision for biotopes, revitalisation of watercourses, lake shores and natural areas, with consultancy and interventions in nature-based engineering.
Forest consulting
Plans and programmes for silvicultural management, forest assessments, advice on individual trees, forest compensations, site supervision and management of neophyte species.
Trust & reputation

ranQ Trust Score of Dionea SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Dionea SA 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%
Dionea SA scores 89.3 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.70.07%
Dionea SA scores 85.0 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).85.022%
Dionea SA scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dionea SA 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 October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Via Lungolago Giuseppe Motta 8
6600 Locarno

At a glance

Legal form
Corporation
UID
CHE-106.036.801
Founded
1988 · 38 years
Last commercial register change
July 2, 2024
Employees
11 to 20
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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