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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryRetail & CommerceRetailWinterthurNorrSyd Guitars Bertschi
NorrSyd Guitars Bertschi Logo
Verified· 3 sourcesTrust Score
Summary

About the company

NorrSyd Guitars Bertschi sells used and new guitars and other acoustic string instruments, including mandolins and banjos. Its activities include offering vintage instruments, sourcing specific instruments for customers, and converting vintage guitars into rubber-bridge guitars.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Retail
✓ Offered5
Guitar retail
Used guitars, vintage instruments and other string instruments; selection in the webshop, advice and sales by appointment, also for Western, concert and Rubber-Bridge guitars.
Test playing by appointment
Test playing of guitars, mandolins and banjos in the guitar boutique by appointment.
Purchase and brokerage of used instruments
Search for used guitars and string instruments, acquisition of collections, onward placement to new owners and reduction or liquidation of inventories.
Instrument search on request
Search for specific instruments when they are not in stock, with ongoing monitoring of the instrument market and offers when something is found.
Rubber-Bridge conversions
Conversion of vintage parlor guitars to modern Rubber-Bridge guitars; restoration of rescued instruments for use on stage and in the studio.
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3.8/5

NorrSyd Guitars Bertschi

Trust & reputation

ranQ Trust Score of NorrSyd Guitars Bertschi: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of November 2026

NorrSyd Guitars Bertschi scores 71.4 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.88.08%
NorrSyd Guitars Bertschi scores 52.6 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.39.612%
  • 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%
NorrSyd Guitars Bertschi 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%
NorrSyd Guitars Bertschi scores 8.3 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 35.8.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

NorrSyd Guitars Bertschi reaches a ranQ Trust Score of 3.8 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 November 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

Bachtelstrasse 85
8400 Winterthur

At a glance

Legal form
Sole proprietorship
UID
CHE-261.167.908
Founded
2024 · 2 years
Last commercial register change
July 10, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHWinterthur
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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