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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringDübendorfVuna GmbH
Vuna GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Vuna GmbH is the development and implementation of alternative (waste)water systems, including sanitary systems, drinking water systems, urine recycling technologies and recycling fertilizers. The company offers sustainable, site-specific solutions for wastewater treatment, resource recovery and drinking water treatment, particularly for remote or special applications such as tiny houses, mountain huts or urban new-build districts. An important part of the activities is the production of Aurin, a urine fertilizer that is considered the world's first officially approved urine fertilizer.

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Products & services

Industry:Technical Consulting & Engineering
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3.9/5

Vuna GmbH

Waste Management Industry
✓ Offered5
Decentralised wastewater systems
Decentralised wastewater systems, future-proof sanitation systems and tailor-made installations; including wastewater treatment, separation of urine, faeces and greywater, as well as worm, substrate and plant filters.
Drinking water systems
Drinking water treatment using ultrafiltration and UV disinfection; filters for water from glacier, lake or stream sources, and planning of suitable pre-filtration for households and mountain huts.
Urine recycling technology
Urine treatment and urine recycling into fertiliser; feasibility checks, sizing and detailed design for projects, as well as stabilising slurry to reduce ammonia emissions.
Wastewater sample analyses
Approved laboratory for sample analyses of small wastewater treatment plants; measurements of transparency, pH, COD, ammonium, nitrite, nitrate, total nitrogen and potassium.
Aurin recycling fertiliser
Recycling fertiliser from human urine with official approval; available as a liquid fertiliser for vegetables, flowers and other plants via the web shop and in retail.
Trust & reputation

ranQ Trust Score of Vuna GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of October 2026

Vuna GmbH scores 56.8 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.73.124%
  • 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.35.310%
  • 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%
Vuna GmbH scores 77.2 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.86.512%
  • 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%
Vuna GmbH scores 86.7 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).86.722%
Vuna GmbH scores 55.0 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 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Vuna GmbH 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 3 customer reviews. 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

February 1, 2024Media
Dünger aus menschlichem Urin
cash.ch

Knowledge

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Location

Hier entsteht die Karte
Ueberlandstrasse 133
8600 Dübendorf
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-145.955.491
Founded
2016 · 10 years
Last commercial register change
December 22, 2023
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.
88.0
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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