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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryChamBNK BauSys AG
BNK BauSys AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of BNK BauSys AG is the manufacture and distribution of building materials and systems for the construction and building sector, particularly in the areas of drainage, infiltration and steel processing. The company offers a wide range of products, including geotextiles, drainage channels, plastic pipes, manhole covers, flat steel beams, concrete reinforcement mats, sheet piling and gabions.

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Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
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BNK BauSys AG

✓ Offered9
Retention / Infiltration
Retention systems made from HDPE pipework, complete systems including access points, start and end plates, inlet and outlet sections, and throttling elements; planning and installation are supported.
Plastic pipes and fittings
Standard pipes made of PVC, PP and PE, cable protection conduits, special pipes, prefabricated PE products according to drawings, as well as flange pipes and standard fittings.
Geotextiles
Separation and filter nonwovens made from PP fibres, as well as ribbon fabrics for stabilising the subsoil, in various weights and tear strengths.
Drainage channels
Drainage channels for construction projects, with support in selection and implementation; collaboration with leading drainage channel manufacturers and project-specific solutions.
Manhole covers
Manhole covers including consultation, in particular the KIO manhole cover made of KINEXT; lightweight, corrosion-resistant, recyclable, classes B15, C250 and D400 according to EN 124.
Sheet pile walls
Supply of common, commercially available sheet pile walls with the corresponding corner sections, together with partners.
Flat steel / beams
Beams, bar steel, hollow sections, plates, flame-cut parts and other steel products, delivered on request to the exact millimetre according to requirements.
Reinforcing steel / mesh
Reinforcing steel, mesh panels and accessories for construction projects, delivered on schedule with partners.
Gabions
Gabions as part of the range; listed on the website without any further detailed description.
Trust & reputation

ranQ Trust Score of BNK BauSys AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

BNK BauSys 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%
BNK BauSys AG scores 81.1 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.89.612%
  • 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%
BNK BauSys 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%
BNK BauSys AG scores 5.7 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 35.5.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BNK BauSys 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 October 2026.

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

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Location

Knonauerstrasse 119
6330 Cham

At a glance

Legal form
Corporation
UID
CHE-382.134.105
Founded
2015 · 11 years
Last commercial register change
May 17, 2018
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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