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

About the company

The core activity of Dias GmbH is the precise processing of concrete, particularly through concrete drilling, cutting and demolition work. This includes, among other things: core drilling with diameters of up to 1200 mm for wall, ceiling and structural breakthroughs; concrete cutting with state-of-the-art diamond technology up to a thickness of 1000 mm for ceiling breakthroughs and precise industrial cutting; and demolition and dismantling work using precise and material-preserving methods. The company offers individual solutions for construction projects of all kinds and relies on state-of-the-art technology and over 12 years of experience in the industry.

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Products & services

Industry:Specialized Construction Activities
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3.8/5

Dias GmbH

✓ Offered4
Concrete core drilling
Core drilling in concrete, reinforced concrete or masonry for wall, ceiling and structural openings; diameters up to 1,200 mm, with minimal vibration and high precision.
Concrete cutting
Diamond-based cutting of concrete for joint cuts, ceiling and structural openings as well as large-area concrete processing; material thicknesses up to 1,000 mm.
Deconstruction and demolition
Controlled deconstruction and demolition works on buildings or components; partial dismantling, preparation for renovation and material-friendly disassembly using special equipment and procedures.
Structural reinforcement
Strengthening load-bearing components with CFRP laminates and CFRP fabric; increased tensile strength and load capacity without visual impact, even with changed usage requirements.
Trust & reputation

ranQ Trust Score of Dias GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Dias GmbH scores 65.0 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.73.124%
  • 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.35.310%
  • 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%
Dias GmbH scores 57.1 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.39.612%
  • 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%
Dias 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%
Dias 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

Dias GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Schlosshubelweg 1a
4805 Brittnau
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-139.033.324
Founded
2024 · 2 years
Last commercial register change
October 16, 2024
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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