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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryPublic Administration & EducationContinuing Education InstitutesYverdon-Les-BainsSWI Swiss Welding Institute
SWI Swiss Welding Institute Logo
Verified· 3 sourcesTrust Score
Summary

About the company

SWI Swiss Welding Institute is an institute focused on welding and brazing that provides training, certifications and testing services. Its activities include practical and theoretical courses, welder and electronic-assembly certifications (ESA, IPC), destructive and non-destructive testing, consultancy and applied research & development; the institute is accredited for professional certification (ISO/CEI 17024) and laboratory testing (ISO/CEI 17025).

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SWI Swiss Welding Institute

✓ Offered10
Practical welding and brazing courses
Practical welding and brazing courses at the Yverdon-les-Bains centre, covering TIG, MAG, MMA and hard brazing processes, with preparation for ISO 9606 and ISO 13585 certifications.
International IIW / EWF theory courses
Theoretical IIW / EWF welding courses recognized in more than 50 countries, for the IWE, IWT, IWS and IWP titles, with welding coordination according to ISO 14731.
Welder / brazing certification
Qualification certificates for welders, welding operators and brazers according to ISO 9606, ISO 14732 and ISO 13585, in the centre in Yverdon-les-Bains or on-site at the company.
ESA electronic certification
Certifications and recertifications for operators and inspectors for high-reliability electronic assemblies according to ECSS-Q-ST-70-26, 70-28 and 70-61 standards.
Qualification of procedure specifications
Qualification and evaluation of welding or brazing procedure specifications according to ISO 15613, ISO 15614 and EN 13134, including tests, trials and the qualification report.
Destructive / non-destructive test reports
Destructive tests and non-destructive inspections for welds and assemblies: tensile, bending, hardness, metallography, visual inspection, dye penetrant and radiography.
Welding quality system
Support for implementing and certifying welding quality systems according to ISO 3834, EN 1090 and EN 15085: interpretation of the standards, quality manual, follow-up.
Expertise in welded and brazed assemblies
Technical expertise to analyze, optimize and secure welded or brazed assemblies, including metallurgical, chemical and mechanical analyses, and destructive and non-destructive inspections.
Dimensioning assistance
Assistance with sizing pressure equipment and pipework, with checks according to EN 13445 and EN 13480, fatigue, flexibility and tightening torque calculations.
Applied research and development
Applied research and development projects in welding and related techniques, assigned to HEIG-VD via the IE and COMATEC institutes.
Trust & reputation

ranQ Trust Score of SWI Swiss Welding Institute: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

SWI Swiss Welding Institute scores 68.9 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.80.624%
  • 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.55.910%
  • 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.50.08%
SWI Swiss Welding Institute scores 84.9 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.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%
SWI Swiss Welding Institute 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%
SWI Swiss Welding Institute scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SWI Swiss Welding Institute reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 8 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 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rue du Nord 3
1400 Yverdon-Les-Bains

At a glance

Legal form
Foundation
UID
CHE-109.657.655
Founded
2002 · 24 years
Last commercial register change
September 14, 2026
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.
97.0
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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