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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRecording Studios & Audio ProductionRetschwilPeter Wespi's Big Bang Studio
Peter Wespi's Big Bang Studio Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "BIG BANG studio" encompasses three main areas: 1. **Music Events and Productions (Music:_live)**: The company offers live music performances for events and functions, including the provision of suitable live bands and the organization of concerts. 2. **Music Education and Coaching (Music:_education)**: The company provides music lessons and coaching for saxophone, improvisation, and other musical instruments, both in-person and online. 3. **Music Production and Arrangements (Music:_production)**: The company creates and produces music recordings, arrangements, and compositions, including the creation of sound logos and audio branding concepts.

AI-generated
Offering

Products & services

Industry:Recording Studios & Audio Production
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4.0/5

Peter Wespi's Big Bang Studio

✓ Offered9
Live music
Live accompaniment with various line-ups and styles, including suitability for events, church services, jazz, old-time and other musical performances.
Saxophone lessons
Saxophone lessons for beginners, returnees and advanced students, with foundational work on instrumental technique, reading music, rhythm, breathing technique, theory and individual lesson planning.
Improvisation coaching and workshops
Improvisation lessons and workshops for individuals and groups, regular public improv workshops as well as occasional workshops for associations, schools and organisations.
Band coaching
Coaching for bands, sections and ensembles, working on parts, stylistics, rhythm and musical implementation.
Audio productions
Audio productions for music groups and other formats such as radio plays, sound invitations, trailers and playback tracks.
Compositions and arrangements
Tailor-made compositions and arrangements for different line-ups, including lead sheets, horn section parts and pieces for ensembles, choirs and big bands.
Sound logo and audio branding
Acoustic brand management with sound logos, corporate sound and audio branding to complement the corporate identity of companies and products.
Concepts and projects
Musical concepts and projects from idea to implementation, as part of the production offering.
Teaching materials and music education resources
Books, teaching materials and classroom resources with e-learning programming, as well as free music materials and arrangements for download.
Trust & reputation

ranQ Trust Score of Peter Wespi's Big Bang Studio: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Peter Wespi's Big Bang Studio scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
Peter Wespi's Big Bang Studio 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%
Peter Wespi's Big Bang Studio 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%
Peter Wespi's Big Bang Studio scores 82.9 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 35.82.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Peter Wespi's Big Bang Studio 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 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Stäfligen
6285 Retschwil
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-108.625.919
Founded
1997 · 29 years
Last commercial register change
February 26, 2013
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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