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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryCaslanoG. Müller-Riva SA
G. Müller-Riva SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of G. Müller-Riva SA consists of the development, manufacture and delivery of products and systems for the extraction, treatment, storage and distribution of water, particularly in the following areas: Water supply: chambers and tanks for drinking water; Wastewater treatment: plants for the treatment of sewage; Rainwater management: systems for the collection and utilization of rainwater; Water recycling: plants for the reuse of water; Special productions: manufacture of customer-specific solutions for water management. The products are made from various materials such as stainless steel, plastics and glass fiber reinforced plastics and are suitable for a wide range of applications, from drinking water supply to industrial water treatment.

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Products & services

Industry:Mechanical Engineering Industry
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G. Müller-Riva SA

Plastics Industry
✓ Offered5
Potable water systems
Chambers and tanks for potable water made of stainless steel, polypropylene or GRP, complete with ultrafiltration, UV treatment, pressurisation units, remote control and safety equipment.
Wastewater treatment systems
Systems for municipal wastewater in GRP or PE, with support, selection of the most suitable system, fast delivery, commissioning and maintenance.
Other water recovery and treatment systems
Prefabricated solutions in GRP and PE for fire-fighting reserves, rainwater recovery, snowmaking systems, recycling wash water and special parts.
Specialist valves for water mains and tanks
Valves for regulating and controlling pressure and levels, multi-function venting, float valves, automatic control valves and anti-water-hammer tanks.
Stainless steel products for chambers, tanks and potable water networks
Stainless steel covers, ladders and access systems, parapets, doors, windows, ventilation grilles, pipes, fittings, valves, sliding bodies and tanks for wastewater and rainwater.
Trust & reputation

ranQ Trust Score of G. Müller-Riva SA

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

G. Müller-Riva 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.
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%
G. Müller-Riva 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%
G. Müller-Riva SA scores 83.3 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).83.322%
G. Müller-Riva SA scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Via Industria 79
6987 Caslano

At a glance

Legal form
Corporation
UID
CHE-108.012.651
Founded
1990 · 36 years
Last commercial register change
April 30, 2021
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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