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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryIT & CommunicationIT Consulting & ServicesArbazKarl OSEN
Karl OSEN Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Karl OSEN is an R&D engineer specializing in aeronautics, software, electronics and embedded avionics systems, and has developed large, high-performance software and products for both mass-market and niche applications. He has experience drafting patents and protecting intellectual property and works on interdisciplinary engineering projects.

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Offering

Products & services

Industry:IT Consulting & ServicesSoftware Development
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4.1/5

Karl OSEN

✓ Offered3
Software development services for avionics and embedded systems
Software development services for avionics and embedded systems, including development of large, complex high-performance software as well as on-board, cockpit display and telemetry software.
Advisory and developer services for aviation software
Consultant developer and aircraft software development services for aviation projects, including flight tests, log analysis, system development and customer-specific software support.
Electronics- and hardware-adjacent software development
Development of software and related systems with a focus on electronics, driver development, kernel modifications, certified loading hardware and test systems.
Trust & reputation

ranQ Trust Score of Karl OSEN: 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.

Karl OSEN 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%
Karl OSEN scores 78.5 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%
Karl OSEN 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%
Karl OSEN scores 4.9 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 35.4.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Karl OSEN 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

Route de Prozerbou 80
1974 Arbaz

At a glance

Legal form
Sole proprietorship
UID
CHE-104.890.227
Founded
1998 · 28 years
Last commercial register change
October 4, 2010
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.
67.0
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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