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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryIndustryPharmaceutical IndustryBuchs SgSigma-Aldrich International GmbH
Sigma-Aldrich International GmbH Logo
Verified· 2 sourcesTrust Score4.1/5

Sigma-Aldrich International GmbH

Summary

About the company

Sigma-Aldrich International GmbH provides products, services and expertise for life science research, biopharmaceutical development and manufacturing. Its portfolio includes chemicals, biochemicals, laboratory consumables, analytical products and solutions for water purification, filtration and cell culture.

AI-generated
Trust & reputation

ranQ Trust Score of Sigma-Aldrich International GmbH: 4.1 out of 5.0

Trust Score
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4.1
/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Sigma-Aldrich International GmbH 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%
Sigma-Aldrich International GmbH scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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.55.07%
Sigma-Aldrich International GmbH scores 81.7 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).81.722%
Sigma-Aldrich International GmbH scores 100.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sigma-Aldrich International GmbH 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. Full methodology

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Location

Industriestrasse 25
9470 Buchs Sg

At a glance

Legal form
Limited Liability Company
UID
CHE-105.315.977
Founded
1999 · 27 years
Last commercial register change
July 29, 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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%

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