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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryIT & CommunicationPublishingWinterthurGroma Verlag GmbH
Groma Verlag GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Groma Verlag GmbH is the publishing and distribution of books and e-books, particularly in the field of classical homeopathy.

AI-generated
Offering

Products & services

Industry:Publishing
✓ Offered3
Book Publishing for Classical Homeopathy
Books on classical homeopathy, self-treatment in acute cases, anxiety and jealousy, and pregnancy, birth, postpartum and infant care; titles for professionals and lay readers.
E-books
Digital books on classical homeopathy and related topics, available as electronic titles in the publisher’s catalogue.
Videos
Videos on classical homeopathy and related topics as a separate publisher section in the online offering.
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4.1/5

Groma Verlag GmbH

Trust & reputation

ranQ Trust Score of Groma Verlag GmbH: 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.

Groma Verlag 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.
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%
Groma Verlag GmbH scores 72.3 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.75.012%
  • 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%
Groma Verlag GmbH 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%
Groma Verlag GmbH scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Groma Verlag 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.

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Location

Schmidgasse 7
8400 Winterthur

At a glance

Legal form
Limited Liability Company
UID
CHE-200.321.391
Founded
2019 · 7 years
Last commercial register change
March 25, 2022
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.
88.0
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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