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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustryOberhelfenschwilSWISS D&W TECH AG
SWISS D&W TECH AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of SWISS D&W TECH AG is the development, production and distribution of environmentally friendly water treatment systems for drinking, bathing, utility and wastewater using electrolysis.

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Offering

Products & services

Industry:Mechanical Engineering Industry
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3.8/5

SWISS D&W TECH AG

✓ Offered
8
Electrolysis plants
Salt electrolysis plants for pool and drinking-water treatment; on-site generation of active chlorine from water, salt and electricity, for private and public systems.
Control technology
Measuring and control devices for pH, chlorine and redox levels in pools, including photometers, test tablets and digital control systems.
Pumps
Diaphragm pumps, peristaltic tube pumps and motor-driven dosing pumps, as well as a feed-water pump for pumping and dosing.
Accessories
Accessories for electrolysis, dosing and water-treatment systems, including dosing stations, tanks with agitators, suction lances and electric ball valves.
Service & annual maintenance
Maintenance and repairs for existing electrolysis plants; inspection, cleaning, software updates, functional tests and original spare parts.
Modernizations
Modernizations of existing electrolysis plants of type LT-, TS- and MV- for updated function and operation.
SDWT project construction
Custom-made solutions for electrolysis and water-technology systems.
SDWT control system construction
Chlorination control for electrolysis-based water treatment systems.
Trust & reputation

ranQ Trust Score of SWISS D&W TECH AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

SWISS D&W TECH AG scores 52.7 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.50.08%
SWISS D&W TECH AG scores 74.1 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.64.612%
  • 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%
SWISS D&W TECH 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%
SWISS D&W TECH AG scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SWISS D&W TECH AG 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.

Knowledge

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Comparisons

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Location

Dorfstrasse 21
9621 Oberhelfenschwil
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-474.690.971
Founded
2021 · 5 years
Last commercial register change
November 15, 2024
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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