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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSite PreparationZuzwil SgKlammsteiner AG
Klammsteiner AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Klammsteiner Kabel- und Leitungsbau is cable and pipeline construction, particularly trenchless pipeline construction, trench milling, house connections, pipeline sorting and core drilling. The company offers specialized services for the laying of cables and pipelines, both with and without trenches, and has specialized equipment such as directional drilling rigs, horizontal drilling rigs and pit drilling rigs.

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Products & services

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3.7/5

Klammsteiner AG

✓ Offered
5
Trenchless pipeline construction
Trenchless pipeline construction with horizontal drilling, directional jacking, burst lining and earth rockets for pipelines beneath roads, streams, railway tracks or protected nature areas.
Trench milling
Trench milling for clean and efficient pipeline installation, including for drainage, lightning protection, cable protection ducts and water lines.
House connection
House connections for electricity, telephone, television, gas, water, wastewater and district heating using trenchless methods, building entries and sealing of wall penetrations.
Utility locating
Utility locating to determine the position and depth of buried services, using passive detection, detection by signal transmission and locating with probes.
Core drilling
Core drilling with diamond core drilling technology in reinforced concrete, sandstone, brick and calcium silicate brick, for drilling diameters from 50 to 500 mm.
Trust & reputation

ranQ Trust Score of Klammsteiner AG: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

Klammsteiner AG scores 49.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.68.224%
  • 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.17.610%
  • 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.35.08%
Klammsteiner AG scores 67.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.58.012%
  • 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%
Klammsteiner AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Klammsteiner AG scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Klammsteiner AG reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

St. Gallerstrasse 15
9524 Zuzwil Sg

At a glance

Legal form
Corporation
UID
CHE-292.117.214
Founded
2022 · 4 years
Last commercial register change
January 9, 2026
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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