Stereoplane

What Stereoplane does

Stereoplane is a privately held, founder-led sound production house ("maison de production sonore") established in 2012 by Pierre-Marie Williamson and operated from a single recording and mixing studio at 12 rue du Colonel Driant in Douarnenez, Finistère, Brittany. The company delivers end-to-end audio services across three loosely defined revenue streams: audio post-production for documentary and fiction film; original music composition, sound design and mixing for advertising and brand campaigns; and audiobook and music album recording, mixing and production. Services are commissioned on a per-project basis with no publicly disclosed pricing. Its underlying technology is a professional pro-audio equipment chain — Pro Tools 2024 Ultimate, Universal Audio Apollo 8, Avid S3, Neve 1073 and API 512C preamps, Tube-Tech MP1A and CL1B compressors, Neumann monitors and microphones, a Schoeps Colette system and Sound Devices Mix Pre 6 for location work — operated by the founder and a curated bench of freelance composers, arrangers, sound designers, editors, foley artists, sound engineers, voice actors, musicians and singers.

The company runs a sales-led B2B motion targeting audiovisual production companies, communication agencies, publishing houses, podcast creators and music labels. Marketing is light: a portfolio-organized website categorized by project type (documentary films, fiction, advertising, audiobooks, music) supplemented by industry-network and referral channels, anchored by membership in the Pôl·e audiovisuel Douarnenez-Cornouailles cluster (since 2021) and the COM5 2025 referential. Despite the rural base, the client roster includes prominent global brands — Vuitton's Capucines campaign, Jil Sander, Netflix, Ubisoft (Star Wars Outlaws), PlayStation, Wargaming, Orange, Accor, Bourjois, Mazda, Harrods x Fnac, Flammarion and France 5 — indicating premium-rate capability, although revenue, headcount (1-10) and ownership remain tightly held with no external capital raised.

Stereoplane has executed very few overt strategic moves since founding: a 2021 relocation to Douarnenez that integrated the studio into Brittany's audiovisual cluster, a 2024 opening of a new studio facility, and 2025 acceptance into the COM5 referential that formalized its regional standing. The model is asset-light, project-commissioned and founder-dependent, with no disclosed funding rounds, no headcount trajectory and no indication of intentional scaling beyond the recent capacity investments.

Name

Stereoplane

Legal name

Stereoplane

Website

https://stereoplane.fr

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Stereoplane is a founder-led sound production house in Douarnenez, France, delivering recording, mixing, sound design, original music composition, voice casting and audiobook production for film, advertising, publishing, gaming and podcast clients.

Ownership category

akta.pro rank

Product category

Audio Post-Production Services

NAICS

Sound Recording Studios (512240), Other Sound Recording Industries (51229)

SIC

Services-Motion Picture & Video Tape Production (7812)

akta.pro primary industry

Sound Design (Creative/Design-Heavy FX, World-Building) (MPAHAEAE)

akta.pro secondary industries

Voiceover Recording & Production (Narration, Promo, Commercial VO) (MPAHAEAK), Dubbing & Voiceover Production (Casting, Recording, Lip-Sync) (MPAHAFAB)

Keywords

• Audio post-production
• Sound design services
• Music composition
• Recording studio services
• Audiobook production

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Audio Post-Production Services: Custom sound production services for documentary films, fiction films, advertisements, podcasts, and audiobooks. Revenue is generated through project-based commissions with pricing based on scope, duration, and complexity of each production.
2. Music Composition and Sound Design: Original music composition and sound design services for audiovisual projects, including brand sound identities, film scores, and custom musical arrangements.
3. Studio Rental and Recording Services: Recording studio rental and sound capture services for voice-over, music recording, and foley, utilizing professional-grade equipment including vintage guitars, amplifiers, and upright piano.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Stereoplane is a sound creation house that provides professional audio production services from its studio in Douarnenez, France. Its work spans soundtracks for documentary and fiction films, original music composition and mixing for advertisements, audiobook recording and post-production, podcast sound design, music album production, and brand sound identity creation. Services include recording, sound editing, voice casting, sound design, mixing, music research, original composition, musical supervision, and sync licensing, delivered via in-studio and on-location sound capture using high-end analog and digital equipment.

Product overview

Stereoplane is a sound production house founded in 2012 by Pierre-Marie Williamson, offering comprehensive audio services from its studio in Douarnenez, Finistère. The company provides a full range of sound production capabilities including documentary and fiction film sound, advertising production, audiobooks, music albums, podcasts, and sound identity creation. The studio offers recording, sound editing, voice casting, sound design, original music composition, mixing, music research, and sync licensing services. Stereoplane works with a network of freelance professionals including composers, arrangers, sound designers, audio editors, Foley artists, sound engineers, actors, musicians, and singers. The company became a member of the Breton audiovisual project (COM5 referential) in 2025 and is part of the Pôl·e audiovisuel Douarnenez-Cornouailles.

Differentiator

Problem solved

Functional benefit

Products and services

• Sound Production Services
• Recording and Mixing Studio Services

Named customers18 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Two partnerships are on record, tiered core.

• Pôl·e audiovisuel Douarnenez-CornouaillescoreStrategic or Co-development PartnerStereoplane joined the Pôl·e audiovisuel Douarnenez-Cornouailles in 2021 when it relocated to Douarnenez. This is a regional audiovisual cluster providing collaboration opportunities with other production companies in the Douarnenez-Cornouailles area of Brittany.
• COM5 Referencial (Breton Audiovisual Project)coreStrategic or Co-development PartnerStereoplane became a member of the COM5 referential in 2025, a quality standard and recognition framework for Breton audiovisual companies operated by Films en Bretagne.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• De Lane Lea Studios: Long-established London-based audio post-production facility serving film, television, and games clients. Broad incumbent because it sits in the same English-language/dubbed-content post-production value chain that Stereoplane serves from France, with a much larger installation and stage capacity.
• MassiveMusic: Global sonic branding and music agency with offices in Amsterdam, Berlin, London, NYC, and beyond. Broad incumbent in the audio branding and original music-for-ads space that Stereoplane competes with on enterprise brand work; larger scale and geographic reach make it a category-defining player.

Others

• Audible Studios: Audiobook and original audio production arm of Audible/Amazon producing premium narrated audiobooks and podcasts. Adjacent rather than direct because it operates as an in-house production label and platform buyer of audiobook narration rather than a freelance mix/post studio serving multiple publishers.

Emerging players

• Antfood: Global boutique sound design and music studio providing original music composition, sound design, and audio branding for advertising, film, and games. Emerging peer because it competes in the same sound-for-advertising and sound-identity lanes but at a larger, multi-territory scale.
• Sixième Son: Paris-based sonic branding and audio identity agency creating brand sound logos, sound design systems, and original music for enterprise clients. Emerging peer in the same French audio-production market with overlap specifically in sound identity creation — a service line Stereoplane explicitly offers.

Direct peers

• Studios Ferber: Iconic Paris-based recording and mixing studio offering music recording, mixing, and audio post-production across music, advertising, and film. Direct peer because both operate as full-service French sound studios serving advertising agencies, labels, and film/TV producers with overlapping service menus and client types.
• Studio Guillaume Tell: Paris-based audio post-production studio providing mixing, sound design, and music services for film, television, and advertising. Direct peer because the service mix (sound design, mixing, original music, voice work) and French audiovisual client base are highly comparable to Stereoplane's positioning.

Regional players

• Sound Lounge: Independent audio post-production studio based in New York City providing sound design, mixing, and music services for advertising, TV, and film. Regional peer because the production model and client mix are very similar to Stereoplane's, but it serves primarily the U.S. market rather than French clients.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/stereoplane
• LinkedInlinkedin.com/company/stereoplane-paris

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stereoplane