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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryChemical IndustryWinterthurGravenberg GmbH
Gravenberg GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gravenberg GmbH develops and sells biodegradable cleaning products under the 'DRUFF … und weg' brand, using microorganisms to remove organic odors and soils. The product range includes concentrated cleaners, absorber granules, a descaler (KalkKiller) and cleaning accessories for domestic and commercial use.

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Products & services

Industry:Chemical IndustryRetail - General Specialty Trade
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4.0/5

Gravenberg GmbH

✓ Offered5
Cleaning agent
All-purpose cleaner, stain and odour remover with microorganisms for home and commercial use; as a concentrate, with Aloe Vera-mint or sandalwood fragrance.
Absorbent granulate
Absorbs liquids and odours in seconds, hardens excrement into sweepable granulate and is suitable on the go as well as for quick cleaning.
Limescale remover
Acid limescale remover for acid-resistant surfaces in bathroom, kitchen, shower and WC; removes limescale and water residues and is suitable for regular maintenance cleaning.
Cleaning accessories
Cleaning cloths, refillable feudel, mop holder and mops for use with the DRUFF … und weg products.
Starter packs
Starter sets with concentrates, absorbent granulate or KalkKiller plus spray bottle, cleaning cloth and, depending on the pack, feudel and mops.
Trust & reputation

ranQ Trust Score of Gravenberg GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of October 2026

Gravenberg 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%
Gravenberg GmbH scores 70.2 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.70.212%
  • 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%
Gravenberg GmbH scores 85.0 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).85.022%
Gravenberg GmbH scores 5.1 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 35.5.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gravenberg GmbH reaches a ranQ Trust Score of 4.0 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

Weberstrasse 88
8400 Winterthur
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 12:00
Sat
09:00 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-413.431.535
Founded
2020 · 6 years
Last commercial register change
July 23, 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.
88.0
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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