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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRental of Consumer GoodsDietikonMusikhaus Theddy Biedermann
Musikhaus Theddy Biedermann Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "Musik Biedermann" is the sale, rental and repair of musical instruments as well as the sale of music accessories and sheet music.

AI-generated
Offering

Products & services

Industry:Rental of Consumer Goods
✓ Offered7
Sale of instruments and accessories
Instruments and accessories for accordions, Schwyzerörgeli, guitars, ukuleles, saxophones, clarinets, trumpets, trombones, euphoniums, recorders, harmonicas and drums.
Instrument rental
Rental of brand-name instruments from monthly rates, including accordions, guitars, wind instruments, drums, E-pianos as well as various guitar and saxophone models.
Music lessons
One-to-one lessons, lessons for two, monthly classes and trial courses for wind instruments, drums, accordion, Schwyzerörgeli as well as E-, classical and Western guitars.
Instrument repairs
Repairs for accordion, Schwyzerörgeli, guitars, ukuleles, wind instruments and drums.
Sale of used instruments
Sale of used instruments and accessory items, including concert guitar, bass, trumpet, trombone, Schwyzerörgeli, cymbals, metronome, amplifiers and lyre.
Clearance sale
Clearance of remaining stock and individual items such as cymbals, decorative items, metronome, amplifiers and lyre at reduced prices.
Gift ideas and trial courses
Gift ideas with ukuleles, harmonicas and trial courses for guitar, saxophone and Schwyzerörgeli or accordion.
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4.0/5

Musikhaus Theddy Biedermann

Trust & reputation

ranQ Trust Score of Musikhaus Theddy Biedermann: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Musikhaus Theddy Biedermann scores 68.0 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.76.724%
  • 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.45.610%
  • 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.70.08%
Musikhaus Theddy Biedermann scores 78.5 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%
Musikhaus Theddy Biedermann 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%
Musikhaus Theddy Biedermann scores 2.9 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 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Musikhaus Theddy Biedermann reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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
5
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Zürcherstrasse 117
8953 Dietikon
Opening hours
Mon
Closed
Tue
09:00 - 12:00, 15:00 - 18:30
Wed
09:00 - 12:00, 15:00 - 18:30
Thu
09:00 - 12:00, 15:00 - 18:30
Fri
09:00 - 12:00, 15:00 - 18:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-107.160.042
Founded
1983 · 43 years
Last commercial register change
June 22, 2021
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.
67.0
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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