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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesNebikonStemu Construction GmbH
Stemu Construction GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Stemu Construction GmbH encompasses a wide range of services in the fields of construction and metal processing. These include, in particular: metal construction and blacksmithing, steel construction, balcony extensions, cutting and welding of metal, manufacture of stairs and railings, excavator work, gardening and civil engineering, concrete work and renovations, fence installations, landscaping and demolition work. The company thus offers a comprehensive range of services for the realization of construction projects, from planning to execution.

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Products & services

Industry:Specialized Construction Activities
✓ Offered8
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3.9/5

Stemu Construction GmbH

Metalwork and locksmithing
Metalwork and locksmithing work for various industries, carried out precisely as part of construction and maintenance projects.
General construction works
General construction services for projects, including complete execution in the areas of construction and maintenance.
Renovations and conversions
Renovations and conversions for residential and commercial spaces, tailored to individual requirements and project preferences.
Maintenance work
Maintenance work in road construction, carried out professionally as part of ongoing construction and maintenance projects.
Civil engineering
Civil engineering work for construction projects, documented in an in-house project gallery with several completed works.
Demolition
Demolition work for construction sites and facilities, presented in an in-house image gallery with multiple reference projects.
Shaft maintenance
Shaft maintenance work and servicing of shafts, documented in an in-house gallery with current works.
Metal construction and blacksmithing
Metal construction and blacksmithing work for building and structural solutions, with several reference projects in the image gallery.
Trust & reputation

ranQ Trust Score of Stemu Construction GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Stemu Construction GmbH scores 62.0 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.70.824%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Stemu Construction GmbH scores 74.1 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.55.07%
Stemu Construction GmbH scores 85.0 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).85.022%
Stemu Construction GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stemu Construction GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Location

Stämpfelbergstrasse 9
6244 Nebikon

At a glance

Legal form
Limited Liability Company
UID
CHE-257.390.834
Founded
2018 · 8 years
Last commercial register change
April 5, 2018
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%
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