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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorMännedorfAnna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS)
Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of the Anna Zemp Foundation is the promotion of biodiversity and nature education. It operates a nature garden where it preserves and promotes species diversity, and offers programs and activities to inspire people about nature and enable them to act responsibly.

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Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS)

✓ Offered
6
Nature education site
Nature education site with its own nature garden, nature education centre and visitor area; promotes biodiversity in the settlement area, experiencing nature, independent action and cooperation.
Nature garden
A 6,300 m² nature garden at the upper edge of Männedorf overlooking Lake Zurich and the mountains; rich in species and habitats, with restful oases and a nature playground.
Nature education
Nature education on biodiversity in the settlement area, experiencing nature and responsible action; networking various stakeholders and collaborating in nature conservation and nature education.
Visit and stay
Visit the nature garden with a visitor area, seating, quiet corners and observation opportunities for native wildlife and plants.
Nature playground
An unconventional playground made of wooden elements at the edge of the forest, plus play options in the Tobel.
Support / Donations
Donations and support for the foundation and its activities in the nature garden, nature education and nature conservation.
Trust & reputation

ranQ Trust Score of Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS): 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.

Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) 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%
Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) scores 84.9 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.55.07%
Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) scores 83.3 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).83.322%
Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) 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

Anna Zemp-Stiftung für umfassenden Mitweltschutz (SUMS) 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

Lönerenweg 10
8708 Männedorf

At a glance

Legal form
Foundation
UID
CHE-110.392.475
Founded
1978 · 48 years
Last commercial register change
November 14, 2024
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.97.06%
  • 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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