What Sonion does

Sonion A/S is a Denmark-headquartered (Roskilde), privately-held designer and manufacturer of advanced miniature acoustic and electromechanical components for the hearing-instrument and professional-audio industries. Founded in 1974 (originally as Microtronic) and wholly owned by Novo Holdings A/S since September 2014, Sonion operates from manufacturing facilities in Vietnam (two sites in Ho Chi Minh City) with a 6,000+ global workforce, supplemented by R&D centers in Hoofddorp (Netherlands), sales offices in the U.S., Poland (Szczecin operations support), and a Shanghai representative office. The company's portfolio spans six product categories — MEMS and electret microphones, balanced-armature receivers (single and dual configurations), Receiver-In-Canal (RIC) module solutions, connector systems, coils and micro-mechanicals (NFMI antennas, telecoils, trimmers), and Voice Pick Up bone-conduction sensors — underpinned by patented technologies including Flat Motion, Dual Backplate MEMS, and Hummingbird.

The business model is B2B component manufacturing: Sonion sells sub-millimeter acoustic components directly to major hearing-aid OEMs under non-public quote-based contracts, providing application-engineering co-design services and operating a 4,000+ SKU catalog. The company reports ~99% on-time delivery performance and serves customers whose products help roughly 50 million end-users annually. A secondary vertical, professional audio (in-ear monitors for musicians), is supported through the same balanced-armature technology platform. Distribution combines direct enterprise sales globally with regional distributors across Australia, Japan, Latin America, China/Taiwan, and Korea.

In March 2025 Sonion launched Sonion Health as a portfolio business extending its biosensing and acoustic expertise into cuffless blood-pressure monitoring via the Sonion Health Band (Laser Doppler Flowmetry hardware) and a proprietary Health-AI machine-learning platform backed by seven U.S. patents, supported by a Remote Patient Monitoring service. Revenue and detailed financial metrics are not publicly disclosed; growth is implied by leadership additions (CFO Morten P. Toft from GN Hearing in 2025, CEO Christian Nielsen in 2021), the 2025 VPU IP settlement with Huawei and Sony, SBTi-validated climate targets, and an EcoVadis Gold Medal in 2025.

Name

Sonion

Legal name

Sonion A/S

Website

https://sonion.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Sonion is a Denmark-headquartered, Novo Holdings-owned B2B manufacturer of advanced miniature acoustic components — microphones, balanced-armature receivers, RIC modules, sensors and connectors — for global hearing-aid OEMs and professional-audio brands, now extending into cuffless blood-pressure monitoring via its Sonion Health portfolio business.

Ownership category

akta.pro rank

Product category

Hearing Instrument Components

NAICS

Audio and Video Equipment Manufacturing (33431), Audio and Video Equipment Manufacturing (334310), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)

SIC

Electronic Components & Accessories (3670), Electromedical & Electrotherapeutic Apparatus (3845)

akta.pro primary industry

Microphones & Acoustic MEMS (MEMS Mics/Ultrasonic Transducers) (HDAHALAH)

akta.pro secondary industries

Microphones, Headsets & Audio Input Devices (HDACAFAH), Studio / Pro Monitoring Headphones & Reference Speakers (CRACANAK)

Keywords

• Hearing instrument components
• Balanced armature receivers
• Miniature MEMS microphones
• Receiver-in-canal solutions
• Professional audio components

Headquarters

HQ city

Roskilde

HQ country

Denmark

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Component Manufacturing and Sales: Sonion develops and manufactures advanced miniature components and solutions such as balanced armature receivers, high-end microphones, electromechanical components, and sensor solutions. Revenue is generated through direct B2B sales to hearing aid manufacturers and professional audio companies. Products are sold as components for integration into customer products rather than finished consumer goods.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Sonion designs and manufactures advanced miniature acoustic and electromechanical components for hearing instruments and professional audio. Its portfolio includes balanced armature receivers, MEMS and electret microphones, Receiver-In-Canal (RIC) systems, connector systems, coils/micro-mechanicals, and sensors, sold B2B to hearing aid manufacturers and pro audio brands for integration into their end products.

Product overview

Sonion develops and manufactures advanced miniature components and solutions for hearing instruments and professional audio. The product portfolio spans six core categories: (1) Microphones - including R/Q/P/O-series MEMS microphones and 5000/6500/8000 electret microphones, plus specialty microphones for noise canceling applications; (2) Receivers - balanced armature receivers for hearing aids (single: 4100/E21S/E25S/2600U/2300/3100/3500/2000; dual: 4400/E40D/E50D/2800/E90D/G90D/3300U/3800/3700) and Pro Audio (Fullrange/Woofers/Tweeters/Midrange/Modules); (3) RICs - fully customized and ready-made Steel Series (XS/XM/XP) and RIC-4400/E50D/E90D solutions; (4) Connector Systems - CS9X/CS8X RIC plugs, CS43/44/45/53/54/73/74 sockets and plugs, and cable assemblies; (5) Coils and Micro Mechanicals - NFMI antennas, passive/active telecoils, sound dampers, volume controls, trimmers; (6) Sensors - Voice Pick Up (VPU) bone sensors, vibration sensors, and bone conduction vibrators. Sonion Health is a separate portfolio business focused on hypertension management using biometric sensing technology with the Sonion Health Band, Health-AI machine learning platform, and Remote Patient Monitoring Platform.

Differentiator

Problem solved

Functional benefit

Brands

• Sonion Health: A portfolio business of Sonion dedicated to transforming the diagnosis and management of hypertension through innovative optical biosensing technology and artificial intelligence, allowing for accurate cuffless blood pressure monitoring.

Products and services

• Microphones for hearing instruments and audio Miniature Electret and MEMS microphones (R-series, Q-series, P-series, O-series, plus 5000/6500/8000 electret and 6950 specialty directional microphones) designed for high performance, low power consumption, customizable packages, and integration into hearing aids and audio applications.
• Balanced Armature receivers for hearing aids and pro audio Balanced armature receivers spanning single and dual configurations for all hearing aid power levels and applications, plus hybrid and electrostatic receivers for special and professional audio use. Includes the 4100 (world's smallest), 4400 Dual, E50D and 3800U Hummingbird, and 2000 high-output (up to 143 dBSPL) models.
• RIC (Receiver-In-Canal) solutions Fully customized RIC (Receiver-In-Canal) solutions plus ready-made Steel Series (XS/XM/XP) and RIC-4400 systems, integrated with state-of-the-art receiver housings and future-proof connector systems for high-performance hearing aids.
• Connector Systems Connector system solutions including CS9X RIC plug/socket, CS73/74 connector systems, CS43/44/45/53/54 sockets and plugs, and cable assemblies, providing flexibility, reliability and functionality for hearing aid designs and special applications such as surveillance/military communication.
• Coils and Micro Mechanicals NFMI antennas, passive and active telecoils, sound dampers, volume controls, trimmers, push buttons, and other micro-mechanical components optimized for highest sensitivity and hearing aid usability.
• Sensors (Voice Pick Up, vibration, bone conduction) Voice Pick Up (VPU) bone sensors for clear voice pick-up in extreme conditions (headsets, earphones, earbuds), vibration sensors optimized for speech, and high-efficiency bone conduction vibrators for hearing applications.
• Sonion Health portfolio (wearable cuffless blood pressure monitoring) Sonion Health is a dedicated portfolio business of Sonion targeting hypertension diagnosis and management. It offers the Sonion Health Band (a wearable device for continuous, clinically accurate cuffless blood pressure monitoring using Laser Doppler Flowmetry), the Health-AI machine learning platform for interpreting LDF signals, and a Remote Patient Monitoring Platform with reporting services for clinical workflow integration.

Quantifiable outcome

• ~99% on-time delivery performance
• +3 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Five partnerships are on record, tiered regional.

• Tenrod Australia Pty. Ltd.regionalChannel Partner/ Reseller/ DistributorAuthorized distributor for Australia covering Silverwater NSW area. Provides local sales and support for Sonion products in the Australian market.
• CHORI GLEX CO. LTDregionalChannel Partner/ Reseller/ DistributorAuthorized distributor for Japan, located in Tokyo. Also handles pro-audio distribution in Japan for Sonion products.
• International Hearing Components, Inc.regionalChannel Partner/ Reseller/ DistributorAuthorized distributor for Latin America and South America, based in Farmington, Michigan, USA. Provides regional coverage for Sonion hearing health components.
• EDOM Technology Co., Ltd.regionalChannel Partner/ Reseller/ DistributorAuthorized distributor for China Mainland and Taiwan for pro-audio products. Located in Shenzhen, Guangdong Province, China and Taipei, Taiwan.
• GNS NetworksregionalChannel Partner/ Reseller/ DistributorAuthorized distributor for Korea, based in Anyang-si, Gyeonggi-do. Provides local sales and support for Sonion products in the Korean market.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Others

• GN Store Nord (GN Hearing): GN Store Nord, through GN Hearing (ReSound, Beltone, Jabra), is a leading hearing aid manufacturer and likely Sonion customer. Adjacent peer relevant for sizing Sonion's customer base; notably Sonion's CFO came from 10 years at GN Hearing.
• WS Audiology: WS Audiology (Widex, Sivantos, Signia) is a major global hearing aid manufacturer and likely Sonion customer. Adjacent comparable in the same value chain driving Sonion's core hearing health volumes.
• Sonova Holding: Sonova is a key Sonion customer and a leading global hearing aid manufacturer (Phonak, Unitron, Hansaton). Listed here as adjacent because it sits in the same hearing health value chain; relevant for understanding Sonion's addressable market and customer dependency.
• Demant: Demant is a leading global hearing aid manufacturer (Oticon, Bernafon, Sonic) and likely Sonion customer. Included as an adjacent comparable operating in the same value chain that drives Sonion's hearing health revenue.

Direct peers

• GoerTek: GoerTek is a direct peer — a major Chinese manufacturer of acoustic components (MEMS microphones, speakers/receivers), smart wearables, and hearables. Competes with Sonion on MEMS microphones and miniaturized acoustic components used in earbuds and hearing devices.
• AAC Technologies: AAC Technologies is a direct peer — a leading Chinese manufacturer of miniaturized acoustic, haptic, optical, and MEMS components including MEMS microphones and speakers for smartphones, wearables, and hearables. Comparable in product technology (MEMS, acoustic components) and overlapping with Sonion's push into TWS earbuds/earables.
• Knowles Corporation: Knowles is a direct peer — it designs and manufactures acoustic components including MEMS microphones, balanced armature receivers, and audio signal processing components serving hearing health, premium audio, and mobile/earbuds customers. It competes head-to-head with Sonion in hearing aid acoustic components and BA receivers for pro-audio IEMs.

Broad incumbents

• Infineon Technologies: Infineon is a broad incumbent — a global semiconductor leader whose MEMS microphone portfolio (XENSIV) directly competes with Sonion's MEMS microphone business for hearing aids and consumer audio. Larger scale and broader portfolio but less specialized in miniature balanced armature receivers for hearing aids.
• Bose Corporation: Bose is a broad incumbent in premium consumer audio and hearables, and operates in hearing health (Bose Hearphones, SoundControl hearing aid). Compares to Sonion's broader pro-audio and emerging consumer/wearable hearing segment, though Bose is a finished-product brand rather than component supplier.
• STMicroelectronics: STMicroelectronics is a broad incumbent — a global semiconductor company producing MEMS microphones, sensors, and actuators that compete with Sonion's MEMS microphone portfolio. Much broader scope across automotive, industrial, and consumer, but overlapping technology in acoustic MEMS.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/sonionbv
• LinkedInlinkedin.com/company/sonion

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries7 records

Funding overview

Funding rounds1 record

Investors1 record

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 Sonion