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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryReal EstateCleaning companySiebnenOsmo Clean GmbH
Osmo Clean GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Osmo Clean GmbH provides cleaning services for buildings, façades, roofs, windows, homes and offices. Its services also include move-out, post-construction and specialist cleaning, using methods that avoid aggressive chemicals.

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Presence

Service area

Offering

Products & services

Industry:Cleaning company
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4.2/5

Osmo Clean GmbH

✓ Offered10
Building cleaning
Cleaning of residential and commercial properties, inside and out. Depending on the property, this covers interiors, façades, roofs, windows and other building surfaces.
Residential cleaning
Cleaning of apartments and houses, available weekly or monthly. Services can include windows and frames, blinds, terraces, balconies, cellar compartments and parking spaces.
Office cleaning
Regular or deep cleaning of offices and workplaces, including desks, work surfaces, floors, carpets, windows, kitchens, break rooms and sanitary areas.
Move-out and handover cleaning
Cleaning of apartments and houses before handover to the property manager or owner. The handover guarantee includes additional cleaning if needed.
Window and glass cleaning
Interior and exterior window cleaning, including frames, tracks and blinds. Services also cover conservatory windows, glass roofs, shopfronts and large glazed façades.
Façade and roof cleaning
Cleaning of façades and roofs to remove dirt, algae, moss, lichen and fungi. Methods are selected according to the surface and level of soiling.
Industrial cleaning
Cleaning of production facilities and machinery, including CNC machines and machining centres, as well as floors, ceilings and walls in production areas.
Post-construction cleaning
Cleaning of the entire property after construction, including kitchens, bathrooms, floors, windows, blinds and terraces. Construction dust, cement film, plaster and silicone residues are also removed.
Photovoltaic panel cleaning
Cleaning of solar cells and photovoltaic systems using specialist equipment. The website describes the process as chemical-free and intended to treat the modules carefully.
Room disinfection
Cleaning and disinfection of rooms, offices and work areas, including surfaces, workstations, equipment, stairways, lifts, kitchens, break rooms and toilets.
Trust & reputation

ranQ Trust Score of Osmo Clean GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 88% · As of November 2026

Osmo Clean GmbH scores 67.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.71.724%
  • 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.55.910%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Osmo Clean GmbH scores 80.9 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.95.212%
  • 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%
Osmo Clean GmbH scores 86.7 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).86.722%
Osmo Clean GmbH scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Osmo Clean GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 8 customer reviews. The data basis is 88%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.68
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Nordring 6
8854 Siebnen

At a glance

Legal form
Limited Liability Company
UID
CHE-413.763.575
Founded
2013 · 13 years
Last commercial register change
October 12, 2026
Employees
1 to 10

Active in 6 of 26 cantons

  • AGAargau
  • GLGlarus
  • SZSchwyz
  • SGSt. Gallen
  • ZGZug
  • ZHZurich
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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