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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureCivil Engineering FirmsKreuzlingenIngenieurbüro Rolf Soller AG
Ingenieurbüro Rolf Soller AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Rolf Soller AG is the provision of engineering services in the fields of civil and structural engineering, including special constructions and earthquake renovations. The company offers consulting and planning services for construction projects and promises a cost- and time-efficient implementation of the projects for maximum customer satisfaction.

AI-generated
Offering

Products & services

Industry:Civil Engineering Firms
✓ Offered5
Engineering building construction
Engineering work for industrial and commercial buildings, residential and mixed-use properties, public works and conversions; planning and delivery of demanding building projects in Switzerland and abroad.
Civil engineering
Civil engineering for excavation pits, special foundations, access roads, bridges and sewer systems; in addition, road construction, rail projects and bridge construction as reference areas.
Special structures
Planning, consulting and site supervision for special foundations, securing excavation pits and piling across various building sectors.
Earthquake retrofits
Modeling, calculation and assessment of earthquake safety using the PushOver procedure for existing and new structures.
Assessments / Retrofits
Assessment of building defects and structural load checks; expert and advisory services for retrofits in structural engineering.
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4.4/5

Ingenieurbüro Rolf Soller AG

Trust & reputation

ranQ Trust Score of Ingenieurbüro Rolf Soller AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Ingenieurbüro Rolf Soller AG scores 78.9 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.77.024%
  • 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.70.510%
  • 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.95.08%
Ingenieurbüro Rolf Soller AG scores 92.3 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.82.07%
Ingenieurbüro Rolf Soller AG 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%
Ingenieurbüro Rolf Soller AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ingenieurbüro Rolf Soller AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 15 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
4.7
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.715
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bernrainstrasse 2
8280 Kreuzlingen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.027.121
Founded
1982 · 44 years
Last commercial register change
May 21, 2025
Employees
21 to 50
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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