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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryRetail & CommerceBuilding materials dealerGretzenbachProsema AG
Prosema AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Prosema AG supplies profiles, waterproofing and drainage systems, and installation accessories for professional trades. Its range includes products for tilers, flooring contractors, roofers and landscape contractors, and it also provides product and system advice.

AI-generated
Offering

Products & services

Industry:Building materials dealer
✓ Offered6
Construction and Finishing Profiles
Profiles for tiles, floor coverings, stairs, movement joints and transitions; the range includes finishing, corner-protection, wall and floor profiles, as well as special profiles for fit-out work.
Waterproofing and Drainage Systems
System components for waterproofing and drainage include waterproofing, uncoupling and drainage mats, sealing tapes, liquid-applied waterproofing, shower channels and drainage outlets.
Balcony and Terrace Systems
System components for balcony and terrace projects include balcony profiles and accessories, drainage, drainage mats, installation materials and edge finishes for exterior surfaces.
Flooring and Building-Finish Systems
The range includes floor-covering profiles, skirting boards and entrance mats, as well as LED profiles and components for tactile guidance systems, with related accessories.
Installation Tools and Accessories
Tools and accessories for installation and processing include levelling systems, tile-laying accessories and tools for installing tiles and slabs.
Product and System Advice
Advice on product selection, compatible system components and technically demanding details, with support for applications involving tiles, floor coverings, balconies and terraces.
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3.5/5

Prosema AG

Trust & reputation

ranQ Trust Score of Prosema AG: 3.5 out of 5.0

Trust Score3.5/ 5.0

Solid

x

Data basis 54% · As of November 2026

Prosema 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%
Prosema AG scores 42.7 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.0.012%
  • 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%
Prosema AG scores 83.3 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).83.322%
Prosema AG scores 0.9 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 35.0.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Prosema AG reaches a ranQ Trust Score of 3.5 out of 5.0 — rated «Solid». 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

Bodenackerstrasse 7
5014 Gretzenbach

At a glance

Legal form
Corporation
UID
CHE-248.128.042
Founded
2026 · 0 years
Last commercial register change
July 15, 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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