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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRepair of Consumer GoodsBellachPianohaus Stefan Billeter
Pianohaus Stefan Billeter Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Pianohaus Billeter is the provision of services for pianos and grand pianos, particularly in the performance of tunings, revisions and repairs.

AI-generated
Offering

Products & services

Industry:Repair of Consumer Goods
✓ Offered2
Grand and upright piano tuning service
Tuning, re-tuning and other tuning work for upright and grand pianos; on request regularly or for individual assignments.
Grand and upright piano restoration
Restoration of upright and grand pianos with repairs and restoration work, so that instruments are playable and fully functional again.
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4.1/5

Pianohaus Stefan Billeter

Trust & reputation

ranQ Trust Score of Pianohaus Stefan Billeter: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Pianohaus Stefan Billeter has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Pianohaus Stefan Billeter scores 78.5 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.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%
Pianohaus Stefan Billeter 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%
Pianohaus Stefan Billeter scores 15.5 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.10.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.20.04%
Qualifications+0.00

Pianohaus Stefan Billeter reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, 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.

Press

Media

May 17, 2021Media
100 Jahre Pianohaus Billeter: Alte Klaviere sind wieder gefragt
solothurnerzeitung.ch
November 26, 2020Media
Mehr Platz für die Instrumente
aargauerzeitung.ch

Knowledge

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Location

Neuriedweg 8
4512 Bellach

At a glance

Legal form
Sole proprietorship
UID
CHE-102.280.756
Founded
1994 · 32 years
Last commercial register change
January 29, 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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