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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorKüsnacht ZhVunaNexus AG
VunaNexus AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of VunaNexus AG is the development and application of technologies for the treatment and utilization of urine, particularly for the production of natural fertilizers. The company focuses on recycling the nutrients contained in urine and transforms them into certified fertilizers, such as Aurin.

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Offering

Products & services

Industry:Sustainability Sector
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4.0/5

VunaNexus AG

✓ Offered4
Urin treatment technology
Technologies for recovering nutrients from urine, including separation at the source, nitrification, activated carbon filtration, pasteurisation and concentration into usable outputs.
Planning, construction and operation of urine treatment systems for buildings
Planning, construction and installation of urine treatment for buildings, including feasibility studies, project planning, environmental studies, maintenance, remote operation and collection of fertiliser.
Urine treatment in agriculture
Separation and stabilisation of livestock urine at the source, nitrification in large reactors, odour reduction and reduction of ammonia emissions.
Aurin liquid fertiliser
Approved liquid fertiliser made from urine for all plants in Switzerland, Liechtenstein and Austria, with nitrogen, phosphorus, potassium and trace elements.
Trust & reputation

ranQ Trust Score of VunaNexus AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 58% · As of October 2026

VunaNexus 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%
VunaNexus AG scores 71.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.58.012%
  • 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%
VunaNexus AG 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%
VunaNexus AG scores 40.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.60.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

VunaNexus AG reaches a ranQ Trust Score of 4.0 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

October 13, 2023Media
VunaNexus: The Venture Leader Cleantech recycling urine nutrients into natural fertilizers
venturelab.swiss
April 25, 2023Media
Turning urine into fertilisers: VunaNexus secures three ESA projects
startupticker.ch

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Location

Obere Heslibachstrasse 17
8700 Küsnacht Zh

At a glance

Legal form
Corporation
UID
CHE-340.623.947
Founded
2022 · 4 years
Last commercial register change
January 6, 2025
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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