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

About the company

IUB Engineering AG is a planning and engineering firm providing overall planning services for infrastructure projects, with expertise in hydropower plants, underground construction, water engineering and civil engineering. Its services include design and realization of electromechanical equipment, client support and project management, studies, expert assessments and BIM.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
✓ Offered12
Integrated planning and engineering services for infrastructure facilities
Integrated planning for infrastructure facilities, demanding engineering services in power plant construction, underground construction, water engineering and general civil engineering and building construction; planning and implementation of electromechanical equipment.
Project management and client support
Client support and project management for infrastructure facilities; consulting, coordination and accompaniment of projects from the planning through the execution phase.
Studies and concepts
Studies and concepts for infrastructure and construction projects; technical clarifications, variant studies and conceptual foundations for further planning.
Integrated planning and project documentation
Integrated planning and project documentation for infrastructure projects; coordination of specialist planning and preparation of project documents.
Construction supervision
Construction supervision for infrastructure and engineering projects; monitoring of execution, coordination of parties involved and control of project implementation.
Expert opinions, assessments and due diligence
Expert opinions, assessments and due diligence for technical systems and construction projects; condition assessments and technical reviews.
Tendering and bid comparisons
Tender documents and bid comparisons for construction and infrastructure projects; preparation of documents and evaluation of bids.
Hydropower plants and technical water engineering
Hydropower plants and technical water engineering for infrastructure projects; planning and engineering processing of hydraulic structures.
Underground construction
Underground construction for infrastructure projects; engineering design and development of underground structures and facilities.
River engineering
River engineering for revitalization, expansion and technical shaping of waterways; planning and engineering support for water engineering projects.
Rehabilitation of fish migration
Rehabilitation of fish migration for hydraulic structures; planning of measures to improve the continuity of waterways.
Civil and building construction, measurement technology and traffic/tunnel engineering
Civil and building construction, measurement technology and traffic and tunnel engineering for infrastructure projects; planning, technical processing and accompanying measurement tasks.
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4.2/5

IUB Engineering AG

Trust & reputation

ranQ Trust Score of IUB Engineering AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

IUB Engineering AG scores 61.5 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.66.724%
  • 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.88.08%
IUB Engineering AG scores 90.6 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%
IUB Engineering 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%
IUB Engineering AG scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

IUB Engineering AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 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
4.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle4.52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Riggenbachstrasse 6
4600 Olten

At a glance

Legal form
Branch
UID
CHE-158.294.606
Founded
2006 · 20 years
Last commercial register change
March 12, 2026
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.
76.0
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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