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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionEndingenStefan Keller GmbH
Stefan Keller GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Stefan Keller GmbH is the manufacture and distribution of metal products for garden and house construction, in particular railings, gates, fences, carports, stairs, balconies and other metal structures for outdoor and indoor use.

AI-generated
Offering

Products & services

Industry:Metal Construction
✓ Offered5
Railings and handrails
Railings for indoor and outdoor use, including picket railings, glass railings, perforated-sheet railings, grating railings, solid-surface railings, window fall protection and handrails.
Steel construction for outdoor structures
Steel construction for carports, bicycle shelters, stairs, balconies, canopies and pergolas, including custom-made metal structures and tailored solutions.
Metal garden products
Metal products for the garden such as garden gates, garden fences, planters, trellises, privacy screens, grill grates, pizza ovens and garden tables and benches.
Custom metal constructions
Custom metal constructions such as mailbox systems, perforated-sheet storage cabinets, perforated-sheet doors and tool niches, planned, advised and executed to measure.
Creative metal design
Individual metalwork and special commissions, from simple railings to designed spatial solutions and terrace structures, including material suggestions and optimisation proposals.
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4.1/5

Stefan Keller GmbH

Trust & reputation

ranQ Trust Score of Stefan Keller 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.

Stefan Keller 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%
Stefan Keller GmbH scores 80.9 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.95.212%
  • 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.55.07%
Stefan Keller 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%
Stefan Keller GmbH scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stefan Keller 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.

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Location

Winkelstrasse 29
5304 Endingen

At a glance

Legal form
Limited Liability Company
UID
CHE-215.446.133
Founded
2013 · 13 years
Last commercial register change
July 12, 2013
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.
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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