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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryElectrical IndustryFüllinsdorfLeumann & Uhlmann AG
Leumann & Uhlmann AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Leumann & Uhlmann AG is the development, manufacture and distribution of electrical drive systems, particularly motors and frequency converters, as well as sensor products for explosion-hazardous areas. The company also offers services such as repair, maintenance and consulting for its products.

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Offering

Products & services

Industry:Electrical IndustryMechanical Engineering Industry
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Leumann & Uhlmann AG

✓ Offered10
Drive technology
Electric motors, frequency converters, soft starters and line and motor filters for drive solutions; complemented by consulting, service and the Danfoss Drives system partnership.
Sensor technology
Sensor products for measuring, controlling, regulating and monitoring; temperature sensing, weather sensing, air-flow sensing as well as solutions for machine protection and explosive-hazard areas.
Control system construction
Control systems for drive technology, including development, implementation, adaptation and new development; also for explosive-hazard areas with dust and gas.
Grid analyses
Analysis of the power supply to identify and eliminate grid issues; from quick verification of voltage quality to detailed analysis by specialists.
Frequency converter service
Engineering, repair, assembly and commissioning of Danfoss frequency converters; including consulting and tailor-made service for drive solutions.
Electric motor construction
Calculation, design and manufacturing of customer-specific electric motors, including standard motors, special motors and explosion-protected designs.
Electric motor repairs
Overhauls and repairs of drives in high-voltage, low-voltage and DC ranges, also for explosion-protected motors.
Balancing service
Balancing of crankshafts, prototypes and couplings; service for various rotating components and special applications.
Mechanical workshop
Mechanical production from prototypes to series parts in flexibly equipped workshops; contract work and custom manufacturing.
Explosion protection
Consulting and design for speed-controlled drives in explosive-hazard areas; selection of converter, motor, type of ignition protection, measurements and documentation.
Trust & reputation

ranQ Trust Score of Leumann & Uhlmann 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.

Leumann & Uhlmann 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.
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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%
Leumann & Uhlmann 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%
Leumann & Uhlmann 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%
Leumann & Uhlmann AG scores 8.6 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 35.8.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Leumann & Uhlmann 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.

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Location

Wölferstrasse 24
4414 Füllinsdorf
Opening hours
Mon
07:30 - 16:30
Tue
07:30 - 16:30
Wed
07:30 - 16:30
Thu
07:30 - 16:30
Fri
07:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.538.662
Founded
1947 · 79 years
Last commercial register change
March 10, 2022
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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