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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSustainability SectorBernexBiol'Eau Sàrl
Biol'Eau Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Biol'Eau Sàrl is to conduct studies and analyses in the field of freshwater ecology, particularly in the areas of: Macrozoobenthos studies (benthic fauna), Macrophyte studies (aquatic flora), Fish population monitoring, Environmental impact studies, Physico-chemical water monitoring, and Sediment analysis. In addition, the company also offers training and courses in the areas of: Scuba diving and Motorboat operation. The company specializes in the investigation of freshwater ecosystems, such as lakes, rivers, ponds and reservoirs, and provides services in the fields of hydrology, dynamics and morphology.

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Products & services

Industry:Sustainability Sector
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3.8/5

Biol'Eau Sàrl

Macrophyte Study (aquatic flora)
Diagnostics of the ecological value of lake shore zones, ponds or watercourses; inventories, underwater mapping, assessment of anthropogenic disturbances and management measures.
Fish Monitoring
Electrofishing, inventories and underwater mapping, spawning ground mapping, calculation of fish damage, inventories with net and echo sounder, design of fish passes.
Macrozoobenthos Study (benthic fauna)
Comprehensive studies of the aquatic environment through analysis of benthic invertebrates, diagnosis of habitats and biocenoses, assessment of biological quality and impacts of works.
Physico-chemical Water Monitoring
Water sampling and analyses, in-situ measurements of temperature, pH, conductivity and dissolved oxygen, turbidity analyses and contaminant monitoring.
Environmental Impact Study
Impact studies and environmental impact notices, coordination with authorities and project participants, support for planning, site monitoring and sector environmental studies.
Sediment Analysis
Sediment sampling, surface and deep coring, grain size analysis, contaminant monitoring and dating of sediments from watercourses or lakes.
Underwater Diving Courses
Diving baptism and discovery of the aquatic environment, training from beginner to professional, leisure diving specialties and Tec diving courses.
Motorboat Practical Course
Individual practical training for operating a motorboat category A, including examination manoeuvres, general navigation and preparation for the licence.
Trust & reputation

ranQ Trust Score of Biol'Eau Sàrl: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Biol'Eau Sàrl scores 49.8 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.68.224%
  • 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.17.610%
  • 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%
Biol'Eau Sàrl scores 80.9 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.95.212%
  • 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%
Biol'Eau Sàrl 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%
Biol'Eau Sàrl scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Biol'Eau Sàrl reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin de Saule 98
1233 Bernex
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-149.777.225
Founded
2013 · 13 years
Last commercial register change
July 12, 2013
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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