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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionOensingenLEONI GmbH
LEONI GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

LEONI GmbH provides energy and data management solutions as well as cable and wiring-system products for the automotive industry. Its portfolio includes low-voltage wiring harnesses, high-voltage wiring systems, battery and charging cables and system-integrated solutions, and it supplies engineering services such as simulation, testing and validation.

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Offering

Products & services

Industry:Building ConstructionConstruction & Project Management
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LEONI GmbH

✓ Offered8
Wiring Systems
Cable harnesses, low-voltage and high-voltage wiring harnesses, power and data distribution, battery solutions, and system-integrated solutions for the automotive industry.
Development Support
Development tools and support services along the entire value chain, from the early concept phase to end-of-production, including full-service support.
High Voltage Wiring Systems
High-voltage wiring harnesses and related solutions for electric vehicles and plug-in hybrids, designed for e-mobility, connectivity, and autonomous vehicle functions.
Low Voltage Wiring Harness
Low-voltage cable harnesses for vehicle wiring and energy and data management, as part of customer-specific on-board electrical systems.
High Voltage Battery Solutions
High-voltage battery solutions, including components for electric vehicles and plug-in hybrids as well as power and battery applications.
Low Voltage Power & Data Distribution
Solutions for distributing power and data in the low-voltage range for customer-specific vehicle architectures and on-board electrical systems.
System Integrated Solutions
System-integrated solutions for on-board electrical systems, combined with development and system expertise for sustainable and connected mobility concepts.
Zonal Architecture
Zonal on-board electrical architecture for reduced complexity and a higher degree of automation in future vehicle wiring systems.
Trust & reputation

ranQ Trust Score of LEONI GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

LEONI GmbH 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%
LEONI GmbH scores 77.8 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.79.212%
  • 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%
LEONI GmbH scores 83.3 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).83.322%
LEONI GmbH scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

LEONI GmbH 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

Solothurnstrasse 19
4702 Oensingen

At a glance

Legal form
Limited Liability Company
UID
CHE-173.359.727
Founded
2018 · 8 years
Last commercial register change
April 28, 2023
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.
88.0
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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