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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryChemical IndustryRomanshornWerner Bieri AG
Werner Bieri AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Werner Bieri AG develops and manufactures paints, wood stains, wood lacquers and coatings for a variety of surfaces and substrates. The product range includes solvent-based, waterborne and UV coatings as well as stains, oils, waxes and strippers; the company also produces binders and pigment and matting pastes and offers custom color matching and recipe archiving.

AI-generated
Offering

Products & services

Industry:Chemical Industry
✓ Offered5
Paints, stains and varnishes
Paints, stains, varnishes and special solutions for wood and surface treatment; solvent-based and water-based products, UV varnishes, oils and waxes, strippers, exterior products.
Technical advice
Technical advice on paints, stains, varnishes and surface solutions; support with selection and application for residential areas, commercial projects and industrial applications.
Varnish development
Varnish development for customer-specific applications; development of paints and surface solutions for residential areas, commercial projects and industrial applications.
Custom tint mixing
Custom tint mixing for individual colour and varnish shades as needed; suitable for paints, stains and varnishes.
Recipe filing
Recipe filing for recurring or customer-specific formulations; securing recipes for later reorders or series applications.
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4.1/5

Werner Bieri AG

Trust & reputation

ranQ Trust Score of Werner Bieri AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Werner Bieri AG scores 62.1 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.50.08%
Werner Bieri AG scores 92.3 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.82.07%
Werner Bieri 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%
Werner Bieri 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

Werner Bieri 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.

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Location

Kreuzlingerstrasse 79
8590 Romanshorn

At a glance

Legal form
Corporation
UID
CHE-107.080.897
Founded
1979 · 47 years
Last commercial register change
April 16, 2021
Employees
21 to 50
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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