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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryRetail & CommerceRetail - General Specialty TradeBrittnauDunum GmbH
Dunum GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Dunum-Ch is a music instrument dealer specializing in the manufacture and distribution of high-quality, sustainable, and unique musical instruments. The company's core activity is to produce and sell innovative musical instruments, with a focus on quality, sustainability, and fair manufacturing conditions. The company also offers personalized consulting and workshops to support customers in selecting the right instrument.

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Offering

Products & services

Industry:Retail - General Specialty Trade
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Dunum GmbH

World music instruments
World music instruments for sound therapy, music and meditation, including handpans, tongue drums, singing bowls, gongs, percussion instruments, monochords and flutes.
Sound therapy instruments
Sound therapy instruments such as Koshi, Zaphir and other wind chimes, monochord and Kotamo, rain columns, kalimba and sansula, Shruti Box and harmonium, tuning forks, as well as Energy Chimes and crystal harps.
Handpans and tongue drums
Handpans, tongue drums and related models such as Rav Vast, Octave Steel Tongue Drum, Frog Drum and Art Quint Drum, each with matching accessories.
Singing bowls and gongs
Singing bowls and gongs in different versions, including full moon and chakra singing bowls, Japanese singing bowls, crystal singing bowls, as well as Chau and Feng gongs.
Percussion and drums
Percussion instruments and drums, including shaman drums, African, Latin American, Brazilian, oriental and Indian percussion, as well as cajons, udu and slit drums.
String instruments
String instruments such as kora, n'goni, harps, ukuleles, guitars and other world string instruments, including accessories.
Wind instruments
Wind instruments such as Native American and earth-chakra flutes, didgeridoos, mouth harps, tin whistles, world flutes and harmonicas, plus accessories.
Workshops and events
Workshops and events around sound and instruments, including a handpan introductory course, a didgeridoo playing course and a shaman drum building workshop.
Retail shop and personal advice
Retail shop with on-site advice, open on Saturdays and by appointment on the other days; personal guidance when selecting suitable instruments.
Trust & reputation

ranQ Trust Score of Dunum GmbH: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Dunum GmbH scores 85.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
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.85.024%
  • 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.77.410%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.95.08%
Dunum GmbH scores 84.7 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.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.70.07%
Dunum 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%
Dunum GmbH scores 71.4 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 35.71.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dunum GmbH reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 20 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.9
of 5

Aggregated from 20 reviews across all connected sources

Sources
GGoogle4.920
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grabenstrasse 10
4805 Brittnau
Opening hours
Mon
Closed
Tue
Closed
Wed
Closed
Thu
13:30 - 17:00
Fri
13:30 - 17:00
Sat
10:00 - 16:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-177.383.630
Founded
2013 · 13 years
Last commercial register change
March 14, 2013
Employees
11 to 20
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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