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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryIndustryChemical IndustrySuhrGrisard Bitumen AG
Grisard Bitumen AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Grisard Bitumen AG develops, refines and supplies bituminous binders for road, airfield and rail construction as well as for roofing membranes and the emulsions industry. The company operates a laboratory for quality assurance and applied research and provides storage and logistics services for bitumen distribution.

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Products & services

Industry:Chemical Industry
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4.1/5

Grisard Bitumen AG

Normal bitumen / Hard bitumen
Normal bitumen in all penetration grades and hard bitumen with specified penetration; on request, modified with wax or adhesion agent for base, binder and wearing courses.
Polymer-modified bitumens
Polymer-modified bitumens for asphalt mix with or without recycled asphalt; highly modified polymer bitumens for rut-resistant surfacings, membranes and surface treatments.
Soft bitumen / Rejuvenators
Soft bitumens up to penetration grade PEN 800 for asphalt mixes with high recycling contents, as well as rejuvenators for targeted rejuvenation of recycled bitumen in the asphalt mixing process.
Bitumen laboratory
Bitumen laboratory with professional measuring and analysis equipment for mechanical, chemical and rheological tests, as well as monitoring from delivery to finished product.
Quality assurance
Quality assurance with a CE-certified laboratory, production and test records, and retained samples for every bitumen delivery over five years.
Applied research and development
Applied research and development for bituminous binders, in particular adjustments to climate, temperature and loading, as well as products for increased recycling rates.
Trust & reputation

ranQ Trust Score of Grisard Bitumen AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

Grisard Bitumen 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.
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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%
Grisard Bitumen AG scores 97.0 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.90.07%
Grisard Bitumen 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%
Grisard Bitumen AG scores 22.9 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 35.45.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Grisard Bitumen 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 58%, 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.

Press

Media

January 19, 2019Media
Der eine Grisard investiert, der andere verkauft – das halbe Ende einer Basler Dynastie
bzbasel.ch

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Location

Spittelweg 1
5034 Suhr

At a glance

Legal form
Corporation
UID
CHE-110.361.747
Founded
2003 · 23 years
Last commercial register change
August 20, 2024
Employees
51 to 100
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.95.03%
    • Full methodology

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