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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil EngineeringSolothurnGrund- und Tiefbau AG Solothurn
Grund- und Tiefbau AG Solothurn Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Grund- und Tiefbau AG Solothurn lies in the field of special foundation engineering, particularly in sheet piling work. The company offers solutions for large and small construction projects and has a modern machine park for pile driving work. The specific activities include: sheet piling work (vibrating, pressing, driving), soil mixing processes, foundation systems (driven piles), vertical drainage, and bracing and stiffening. The company positions itself as a sheet piling specialist and offers innovative solutions for complex construction projects.

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Products & services

Industry:Civil EngineeringSpecialized Construction Activities
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4.0/5

Grund- und Tiefbau AG Solothurn

✓ Offered6
Sheet piling works
Vibrating sheet piles, jacking sheet piles and driving sheet piles for excavation pits and special deep construction; supplemented by special procedures for acoustic protection, high-pressure flushing and loosening drilling.
Special deep construction
Special deep construction for large and smaller building projects; technical and cost-effective solutions, supported by modern machines and methods.
Soil mixing methods
Soil mixing methods for ground improvement and for special deep construction applications.
Foundation system with driven piles
Foundation systems with driven piles for excavation pit and foundation solutions in special deep construction.
Vertical drainage
Vertical drainage for drainage and soil improvement in special deep construction.
Shoring and strutting
Shoring and strutting for temporary securing and stabilisation of excavation pits.
Trust & reputation

ranQ Trust Score of Grund- und Tiefbau AG Solothurn: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Grund- und Tiefbau AG Solothurn 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%
Grund- und Tiefbau AG Solothurn scores 95.8 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.96.07%
Grund- und Tiefbau AG Solothurn 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%
Grund- und Tiefbau AG Solothurn scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grund- und Tiefbau AG Solothurn reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». 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

Bielstrasse 102
4500 Solothurn

At a glance

Legal form
Corporation
UID
CHE-108.094.181
Founded
1971 · 55 years
Last commercial register change
August 6, 2024
Employees
101 to 500
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.100.06%
  • 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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