Knowles Corp (NYSE: KN) is an electronic components company that designs and manufactures acoustic components, capacitors, and RF filtering solutions sold to hearing health, defense, industrial, medtech, and specialty audio customers. Revenue comes from transactional product sales across two segments: Precision Devices (PD) and MedTech & Specialty Audio (MSA). In the PD segment, Knowles sells high-performance capacitors and RF filtering products into defense, industrial, medtech, and electrification/energy markets. In the MSA segment, the company supplies balanced armature speakers and microphones primarily to hearing aid manufacturers and specialty audio markets. Two customers exceeded 10% of revenues attributable to continuing operations in FY2025: WS Audiology A/S, a hearing aid manufacturer, at approximately 11%, and TTI, Inc., an electromechanical components distributor, at approximately 10%. Manufacturing operations are concentrated in Asia. Raw materials include metals such as palladium, gold, brass, stainless steel, and copper, as well as ceramic powder, exposing margins to commodity price fluctuations.

Revenue model

Transactional product sales of electronic components. Revenue is generated when physical components, including capacitors, RF filters, balanced armature speakers, and microphones, are sold to OEM customers and distributors. No subscription or royalty model is described in the filing.

Products and services

Precision Devices segment: high-performance capacitors (high voltage, high temperature, high reliability specifications) and RF filtering solutions across a broad range of applications and frequencies. MedTech & Specialty Audio segment: balanced armature speakers and microphones for hearing health manufacturers and specialty audio markets.

Customers and end markets

End markets include hearing health (hearing aid manufacturers), defense, industrial, medtech, electrification/energy, and specialty audio. WS Audiology A/S accounted for approximately 11% of revenues attributable to continuing operations in FY2025. TTI, Inc., a distributor, accounted for approximately 10% of revenues attributable to continuing operations in FY2025.

Value-chain role

Component manufacturer and supplier. Knowles sits between raw material suppliers (metals, ceramic powder) and OEM customers or distributors. The company holds a portfolio of intellectual property and conducts its own research and development. Manufacturing is largely based in Asia.

Geographic exposure

Manufacturing operations are concentrated in Asia, as noted in the FY2025 10-K filed 2026-02-09. The filing references operations in multiple domestic and international tax jurisdictions but does not provide a specific revenue breakdown by geography in the excerpts provided.

Source: SEC 10-K, filed 2026-02-09

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