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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Machinery & Electronic DevicesEmbrachKarl Keller AG
Karl Keller AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Karl Keller AG is precision mechanics, particularly the manufacture of one-off items, individual pieces and small series, as well as the mass production of parts using various techniques such as grinding and repair of existing parts.

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Products & services

Industry:Repair of Machinery & Electronic Devices
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4.1/5

Karl Keller AG

Precision engineering
Precision-mechanical production of prototypes, single parts and small series; custom-made components, repairs of existing parts, and finishing with accurate grinding.
Grinding work
Internal grinding, CNC grinding, surface grinding and external cylindrical grinding for various workpiece sizes and shapes, including machining of eccentric parts.
Honing
Honing of bores in the BO range Ø 5 to 135 mm.
Turning work
CNC turning up to Ø 250 x 700 and conventional turning up to 600 x 2000.
Milling work
Milling of workpieces up to 1200 x 400 mm.
Boring work
Boring work up to 1000 x 1000 x 500.
Broaching of keyways and profiles
Broaching of keyways and profiles as a specialized mechanical machining process.
Gear and sprocket manufacturing
Complete manufacturing of gears and sprockets up to a diameter of 600 mm.
Welding
Electric and oxy-fuel welding for repairs and machining.
Finishing work
Finishing work with a paint-spraying and sandblasting system.
Trust & reputation

ranQ Trust Score of Karl Keller AG: 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 Keller 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%
Karl Keller 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%
Karl Keller AG 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 Keller AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Karl Keller 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

Illingerstrasse 81
8424 Embrach

At a glance

Legal form
Corporation
UID
CHE-115.311.389
Founded
2009 · 17 years
Last commercial register change
February 13, 2015
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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