Amphenol Corp. (APH)

Amphenol designs, manufactures and markets electrical, electronic and fibre optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial, high-speed, fibre optic and specialty cable. Certain predecessor businesses were founded in 1932, the company was incorporated in Delaware in 1986 and its Class A common stock began trading on the New York Stock Exchange in 1991. Its stated strategy is to give customers design capability, a broad product selection and a high level of quality and service worldwide while running continuing programmes of productivity improvement and cost control. Work is aligned into three reportable segments, each run by a segment manager reporting to the chief executive: Communications Solutions, Harsh Environment Solutions, and Interconnect and Sensor Systems, which were 52%, 26% and 22% of 2025 net sales.

The segments

Communications Solutions designs, makes and markets connector and interconnect systems including high speed, radio frequency, power and fibre optic products, coaxial, fibre optic, power and high-speed cable, antennas for consumer devices and network infrastructure, cable assemblies and harnesses, hinges and other mechanical products. Harsh Environment Solutions makes ruggedised interconnect products, including connectors and interconnect systems for data, power, fibre optic and radio frequency use in demanding conditions, specialty and coaxial cable, backplane interconnect systems, cable assemblies and cable management, plus flexible and rigid printed circuit boards. Interconnect and Sensor Systems makes sensors and sensor-based systems covering force, gas and moisture, level, position, pressure, temperature and vibration, along with busbars and power distribution systems, power interconnect products, backplane systems and cable assemblies. All three segments sell into automotive, commercial aerospace, communications networks, defence, industrial and information technology and data communications markets, with mobile devices added in Communications Solutions.

The strategy

The company works to widen the diversity of its markets, customers, applications and products, on the view that participating broadly across the electronics industry reduces exposure to any one market and steadies financial performance. It seeks preferred supplier relationships, working with customers at the design stage on products that generally carry higher value-added content than other interconnect, antenna and sensor products, with technology focused on radio frequency, power, harsh environment, high-speed and fibre optic interconnect along with antennas and sensors. It is also shifting and expanding manufacturing, engineering, sales and service operations globally to serve existing customers, reach developing markets and win new relationships.

Customers and selling

Products go to thousands of original equipment manufacturers in numerous countries, to electronic manufacturing services companies, original design manufacturers and service providers including telecommunications network operators and web service providers. Customers have been consolidating their lists of qualified suppliers towards companies that can meet technical, quality and delivery standards while offering geographic flexibility and competitive prices. No single customer was 10% or more of net sales in 2025, 2024 or 2023. Selling runs through the company's own global sales force, independent representatives and a global network of electronics distributors, with distributor sales approximately 19% of net sales in 2025 and 18% in 2024.

Materials, orders and people

Raw materials include precious metals such as gold, silver and palladium, aluminium, steel, copper, titanium and metal alloys, copper wire and optical fibre, and plastics, along with mechanical and electronic components, generally available worldwide and bought locally from a variety of suppliers, with long-term supply agreements used where a single source is involved. Supply chain constraints, regulatory restrictions and additional tariffs have at times made certain materials harder to obtain at reasonable cost. Backlog of unfilled firm orders was approximately 8.9 billion dollars at 31 December 2025 against approximately 6.1 billion a year earlier, which the company attributes to demand for products supporting artificial intelligence applications and to acquisitions; orders may generally be cancelled before shipment and nearly all the backlog is expected to be filled within twelve months, so it may not indicate future demand. The business is not markedly seasonal, though historically the last two quarters have been strongest. The company had approximately 170,000 employees worldwide at 31 December 2025, approximately 15,000 of them in the United States, with less than 10% of the United States workforce represented by a trade union or covered by collective bargaining, and it runs a flat structure with more than 140 general managers each running an independent business.

From Amphenol's annual report on Form 10-K for the year ended 31 December 2025. The filing