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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionRoggwil TgJakob Müller Sohn AG
Jakob Müller Sohn AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Müller Jakob Sohn AG encompasses the development, manufacturing, and distribution of various products and services in the following areas: Laser processing (laser products), metal construction, particularly staircase construction, water maintenance, including the production of water purification vessels, weed control without chemicals, and winter services, including the production of snowplows and other municipal equipment. The company thus offers a wide range of products and services focusing on metal processing, environmental technology, and municipal vehicles.

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Offering

Products & services

Industry:Metal Construction
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Jakob Müller Sohn AG

✓ Offered6
Metal construction
Metal constructions for interior and exterior use, custom-made components, carports, railings, handrails, doors, partition walls, canopy structures and fencing.
Stair construction
Metal stair construction and assembly from a single source for industrial stair systems, residential stairs and emergency stairs; also steel stairs with wooden components.
Laser cutting
Laser cutting of sheet metal and non-ferrous metals with a fiber laser, including aluminium, stainless steel, steel, brass and copper in various material thicknesses.
Waterway maintenance
Waterway cleaning vessel for mowing seagrass, unloading seagrass and wood, collecting root pieces and performing piling work, relocating buoys stones and dredging navigation channels.
Weed removal
Weed broom for chemical-free removal of weeds along road, pavement and path edges, with a hydraulically adjustable arm and broom angle.
Winter service
Snow ploughs for trucks, special vehicles, tractors, off-road passenger cars and vans, as well as snow-removal systems for lorries.
Trust & reputation

ranQ Trust Score of Jakob Müller Sohn AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Jakob Müller Sohn AG 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%
Jakob Müller Sohn 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%
Jakob Müller Sohn AG scores 83.3 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).83.322%
Jakob Müller Sohn AG scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jakob Müller Sohn AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

Knowledge

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Location

Heimatstrasse 2
9325 Roggwil Tg

At a glance

Legal form
Corporation
UID
CHE-102.385.527
Founded
1990 · 36 years
Last commercial register change
October 5, 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.
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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