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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryArts, Culture & RecreationOrchestras & MusiciansZurichPromusig AG
Promusig AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Promusig AG is a music store and online retailer selling musical instruments, PA and studio equipment, and accessories. The company also provides in-store demonstrations, instrument repair, trade‑in/used-equipment services and music lessons.

AI-generated
Offering

Products & services

Industry:Orchestras & Musicians
✓ Offered6
Musical instruments and audio equipment online store
Guitars, basses, keyboards, drums, PA, studio and recording equipment, software and accessories in the online store and in the shop in Zurich.
Used gear and bargains
Used instruments, amplifiers, PA and studio equipment, as well as discounted new items from various music and audio categories.
Guitar lessons
Private instruction for electric and acoustic guitar with basics for beginners, licks, riffs, an individual lesson plan and a trial lesson.
Guitar lessons (Guitar School Zürich)
Individual guitar lessons with an experienced teacher, tailored teaching methods, lesson recordings as MP3 and an introductory trial lesson.
Instrumentvermittlung (Instrumentor)
Matching of music teachers via a profile offering with more than 190 experienced specialists.
Bass guitar lessons
E-bass instruction for all musical styles in Zurich, Küsnacht ZH or Stäfa with an experienced E-bass teacher.
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4.6/5

Promusig AG

Trust & reputation

ranQ Trust Score of Promusig AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Promusig AG scores 91.2 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.84.624%
  • 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.100.010%
  • 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.100.08%
Promusig AG scores 85.5 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.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%
Promusig AG 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%
Promusig AG 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

Promusig AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.7 out of 5 stars from 506 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
4.7
of 5

Aggregated from 506 reviews across all connected sources

Sources
GGoogle4.7506
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sihlfeldstrasse 138
8004 Zurich
Opening hours
Mon
10:00 - 18:30
Tue
10:00 - 18:30
Wed
10:00 - 18:30
Thu
10:00 - 18:30
Fri
10:00 - 18:30
Sat
10:00 - 16:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.668.665
Founded
1998 · 28 years
Last commercial register change
March 6, 2009
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.
100.0
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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