Supplier owned / conglomerate

Sonion

Roskilde, Zealand (near Copenhagen), Denmark · founded 1974

One of the two dominant global suppliers of balanced-armature transducers for hearing aids and premium IEMs (alongside U.S.-based Knowles); Sonion's BA and electrostatic drivers are inside a large share of multi-driver flagship in-ear monitors.

Sonion is a Danish supplier of advanced miniature electroacoustic and electromechanical components for hearing instruments and premium in-ear audio, founded in 1974 in Roskilde, Denmark. It designs and manufactures balanced-armature receivers/drivers, electret and MEMS microphones, electrostatic (EST) receivers, telecoils, connectors, and sensors, selling B2B to hearing-aid makers and high-end IEM/headset manufacturers rather than to consumers. Since September 2014 it has been owned by Novo Holdings A/S, the investment arm of the Novo Nordisk Foundation. The company operates facilities across Denmark, Poland, the Netherlands, the USA, China, Vietnam and the Philippines.

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At a glance

Type
Supplier
Founder
Jørgen Weber Jensen and Jens-Jørn Stockholm
Founded
1974
Headquarters
Roskilde, Zealand (near Copenhagen), Denmark
Price range
Budget → flagship
Makes / sells
balanced armature receivers/drivers, electrostatic (EST) receivers, miniature electret microphones, MEMS microphones, telecoils, connectors and electromechanical components, bone-conduction and biometric sensors
Known for
balanced armature transducers, miniaturized micro-acoustics, hearing-instrument components, electrostatic drivers for premium IEMs, MEMS and electret microphones
Website
www.sonion.com

Notable products

  • Balanced armature (BA) receivers/drivers — Widely used in multi-driver custom and universal IEMs from premium brands alongside Knowles-sourced BAs
  • Sonion electrostatic (EST) drivers — Used in flagship hybrid/tribrid IEMs (e.g., Noble Audio Shogun and Onyx) to extend treble response
  • Miniature electret and MEMS microphones — Core components for hearing aids and audio devices

Supplies

Notable brands that use their components:

Empire EarsNoble Audiopremium IEM manufacturers (balanced-armature and electrostatic drivers)hearing-aid manufacturers

Sources: Sonion — History (official) · Sonion — Owners (official) · Sonion — About (official) · Sonion Advanced Audio+ — Balanced Armature Drivers · Novo Holdings — Sonion investment page · Empire Ears — Technology (cites Knowles and Sonion BA drivers) · HiFi Sound Gear — Noble Audio Shogun (cites Sonion EST drivers)