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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesRecording Studios & Audio ProductionLe LocleIONISON - Mercier
IONISON - Mercier Logo
Verified· 4 sourcesTrust Score
Summary

About the company

IONISON is a studio specializing in music creation, sound design, and audio mixing for film, television, advertising, and music productions. The core activities include: creation of original music for film, television, and advertising; sound design for film, television, and advertising; audio mixing for film, television, and music productions (including stereo, 5.1 surround, and Atmos); mastering of music productions; transfer of analog audio sources (such as magnetic and cassette tapes, as well as vinyl records) to digital formats; and recording and editing of audio material for film, television, and music productions. The company also offers services such as the creation of sound installations and the transfer of audio archives to digital formats.

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Products & services

Industry:Recording Studios & Audio Production
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3.7/5

IONISON - Mercier

5
Mix studio
Mix studio for albums, film and television; stereo, 5.1 surround, Atmos and VR mixing, with on-site recording if necessary.
Original music and sound design
Creation of original music, sound design and sound productions for films, theatre, installations and presentations, with delivery of suitable files.
Audio mastering
Mastering for music productions, carried out on request to finalize audio productions.
Transfer of sound archives
Transfer of sound archives to AIFF or MP3 files from tape, cassettes and vinyl records, for listening again on CD or a computer.
Audio equipment sales
Sale of studio and sound reinforcement equipment, with advice and implementation of sound installations for event venues, museums, cafés and other locations.
Trust & reputation

ranQ Trust Score of IONISON - Mercier: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 100% · As of October 2026

IONISON - Mercier scores 52.7 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.68.224%
  • 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.17.610%
  • 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.50.08%
IONISON - Mercier 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%
IONISON - Mercier scores 86.7 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).86.722%
IONISON - Mercier scores 8.1 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: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.13.34%
Qualifications+0.00

IONISON - Mercier reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

December 19, 2024Media
Stéphane Mercier: «J’ai toujours aimé le bruit»
arcinfo.ch

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Location

Crêt-Vaillant 18
2400 Le Locle

At a glance

Legal form
Sole proprietorship
UID
CHE-109.063.409
Founded
2001 · 25 years
Last commercial register change
April 23, 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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