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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringWinterthurIABP AG
IABP AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of IABP AG Bauphysik is the provision of services in the field of building physics and building protection. This includes, in particular, the neutral and independent inspection and evaluation of buildings in terms of heat, moisture, sound, climate, fire and materiality, as well as the development of solution proposals for complex building physics problems. The company also offers specialized services such as facade control, building damage analysis and consulting, as well as consulting on the application of aerogel insulation materials.

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Products & services

Industry:Technical Consulting & Engineering
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IABP AG

✓ Offered12
Building physics consulting
Building physics consulting for new and existing buildings, recording and assessing building-physics interrelationships, developing practical solution proposals.
Measurements and monitoring
Measurements and monitoring with planning, carrying out measurement campaigns, sensor installation and evaluation of the measurement data.
Numerical simulations
Numerical simulations for investigating temperature and moisture behaviour under realistic boundary conditions as well as feasibility and parameter studies.
2D and 3D thermal bridge simulations
2D and 3D thermal bridge simulations for stationary and non-stationary boundary conditions.
Building acoustics and room acoustics
Building acoustics and room acoustics with specialist assessments and calculations in the fields of sound insulation and room climate.
Historic buildings and older buildings
Consulting for historic buildings and older buildings, selection of materials and systems, and careful energy retrofit concepts considering comfort and room climate.
Construction forensics
Construction forensics for investigating and classifying causes of damage and building-physics interrelationships.
Building protection
Building protection for preserving the building fabric without damage, including clarifications on moisture, heat and other causes of structural damage.
Expert reports for construction and coating damage
Expert reports and assessments for construction and coating damage, including evaluation of damage patterns and specialist cause analysis.
Training and lectures
Training and lectures on building-physics topics, knowledge transfer for professionals and project stakeholders.
Materiality and determination of characteristic values
Materiality and determination of characteristic values for building-physics questions, in particular regarding material behaviour and characteristic values of building materials.
Noise calculations
Noise calculations for building-physics and acoustic issues in the building and surrounding area.
Trust & reputation

ranQ Trust Score of IABP AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

IABP AG scores 65.9 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.75.024%
  • 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.40.910%
  • 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.70.08%
IABP AG scores 79.8 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.86.512%
  • 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%
IABP 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%
IABP AG scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

IABP AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rudolf-Diesel-Strasse 5
8404 Winterthur
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 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-191.579.652
Founded
2016 · 10 years
Last commercial register change
February 3, 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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