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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding companyBiel/BienneProna Holding AG
Prona Holding AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Prona Holding AG provides integrated engineering services, offering consulting and planning in environmental protection, occupational safety and building physics. Its business areas include buildings & settlements, industry & commerce, infrastructure & mobility, nature & landscape and applied research, with services such as environmental consulting, GIS/BIM and site protection.

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Products & services

Industry:Holding company
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Prona Holding AG

✓ Offered5
Building physics
Building physics for high-efficiency buildings, sound, thermal and moisture protection; proof, measurements, refurbishment strategies, Minergie® and SNBS certifications, summer thermal protection and building acoustics concepts.
Environmental consulting
Environmental consulting for companies, private individuals and authorities; emission-impact measurements, air hygiene, radon measurements, aerial surveys with drones, emergency incident and disaster protection as well as water protection for projects.
Occupational safety / health protection
Occupational safety and health protection for industry, commercial activities and construction projects; hazardous substance storage, explosion protection, hazard analyses, safety concepts, training, site inspections and safety plans.
Applied ecology
Applied ecology with ecological reports, field surveys of flora, fauna and habitats, promotion and maintenance concepts, replacement and compensation measures, as well as revitalisation of watercourses and lake shores.
GIS / BIM
GIS and BIM services for digital planning processes; 3D models, digital building data, planning support, simulations for optimising heat and solar energy and transfer of planning information.
Trust & reputation

ranQ Trust Score of Prona Holding AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Prona Holding AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Prona Holding AG scores 64.1 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.50.012%
  • 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.55.07%
Prona Holding AG 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%
Prona Holding AG scores 65.7 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 35.65.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Prona Holding AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Collègegasse 9
2502 Biel/Bienne

At a glance

Legal form
Corporation
UID
CHE-396.585.885
Founded
2023 · 3 years
Last commercial register change
April 28, 2023
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BEBiel/Bienne
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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