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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringNidauALPHA WasserTechnik AG
ALPHA WasserTechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ALPHA WasserTechnik AG is the planning, conception, design and implementation of solutions for the treatment of wastewater, industrial water and process water. This includes various processes such as mechanical, physico-chemical and biological treatment, as well as the removal of micropollutants, sludge treatment and deodorization.

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Offering

Products & services

Industry:Technical Consulting & EngineeringMechanical Engineering Industry
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4.0/5

ALPHA WasserTechnik AG

✓ Offered8
Industrial process water treatment
Solutions and services for process water, environment and competitiveness, industrial wastewater and specific applications; needs analysis and standard or tailor-made solutions.
Wastewater treatment
Physical-chemical, biological, tertiary and mechanical treatment of wastewater, with support from design through to commissioning of the installations.
Micropollutant treatment
Adsorption solutions using activated carbon, ozonation or a combination of the two, adapted to existing plants based on infrastructure, space and hydraulics.
Sludge treatment
Consulting and intervention across the entire sludge chain, from screening to incineration, with thickening, digestion and thermal hydrolysis.
Deodorisation
Design of odour capture systems and deodorisation units, with biofilter and physical-chemical deodorisation to reduce odour nuisance.
Operating and maintenance services
Maintenance of equipment, custom service contracts, operational support, after-sales monitoring, replacement of spare parts and advice on renewal.
Welding and assembly
Stainless steel welding work, assembly services and preparatory workshop work to reduce intervention time on site.
Analyses and audits
Laboratory analyses of water, daily monitoring of quality, specific audits, expert reports, performance studies and optimisation advice.
Trust & reputation

ranQ Trust Score of ALPHA WasserTechnik AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

ALPHA WasserTechnik AG scores 59.3 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.75.024%
  • 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.40.910%
  • 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%
ALPHA WasserTechnik AG scores 85.5 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%
ALPHA WasserTechnik AG scores 85.0 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).85.022%
ALPHA WasserTechnik AG scores 40.0 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 35.40.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ALPHA WasserTechnik AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Schloss-Strasse 15
2560 Nidau

At a glance

Legal form
Corporation
UID
CHE-284.231.061
Founded
2011 · 15 years
Last commercial register change
October 23, 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.
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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