AAll Manufacturers
- AAEON UP
- Aavid, Thermal Division of Boyd Corporation
- AB Connectors / TT Electronics
- ABB
- ABLIC
- Abracon
- Acconeer
- ACEINNA
- aconno
- Amphenol Communications Solutions
- Adafruit
- Adesto Technologies
- Analog Devices Inc.
- ADLINK Technology
- Advanced Acoustic Technology Corp.
- Advanced Energy
- Advanced Linear Devices
- Advanced Semiconductor, Inc.
- Amphenol Advanced Sensors
- Advanced Thermal Solutions
- Advantech
- Afero
- AIM (American Iron and Metal)
- AIM-Cambridge / Cinch Connectivity Solutions
- AirBorn
- AIRPAX / Sensata
- Amphenol Alden
- Amphenol All Sensors
- Allegro MicroSystems
- Alliance Memory
- Alorium Technology
- Alpha (Taiwan)
- Alpha Wire
- Alps Alpine
- ALPS Electric
- Altech
- Altera / Intel
- Altitude Tech
- APC by Schneider Electric
- Ametherm
- Amphenol
- ams OSRAM
- AMSECO / Potter
- Amulet Technologies
- Anaren
- ANAVI Technology
- Anderson Power Products
- Andes Technology
- Antenova
- Anvo-Systems Dresden
- Amphenol Anytek
- Amphenol Aorora
- AP Memory
- Apacer Technology Inc.
- APEM
- Apex Microtechnology
- Apex Tool Group
- API Delevan
- API Technologies
- APM HEXSEAL
- Apogee Semiconductor
- Applied Motion
- Aptina Imaging / onsemi
- Aptiv
- Arbor Technology
- ARCOL / Ohmite
- Arcotronics/KEMET
- Arduino
- ArduSimple
- Aries Electronics
- Artesyn Embedded Technologies
- Astec Power
- Astera Labs
- Astrodyne TDI
- ATC / Kyocera AVX
- ATLAS
- Atmel / Microchip
- ATOP
- Amphenol Technical Products International
- Ault / SL Power
- Auvidea
- Avalanche Technology
- Aven
- Avery Dennison
- AVX
- Axiomtek
- Azoteq
- Amphenol Cables on Demand
- Amphenol Canada
- Amphenol Casco
- Amphenol FCI
- Amphenol Fiber Systems International
- Amphenol GEC
- Amphenol i2s
- Amphenol InterCon Systems
- Amphenol LTD
- Amphenol LTW
- Amphenol MCP
- Amphenol PCB Piezotronics
- Amphenol Pcd
- Amphenol PCD Shenzhen
- Amphenol Piher
- Amphenol SGX Sensortech
- Amphenol Sine Systems
- Amphenol Socapex
- Amphenol Spectra-Strip
- Amphenol / SSI Technologies
- Amphenol / SV Microwave
- Amphenol TCS
- Amphenol Times Microwave Systems
- Amphenol-Tuchel
- Amphenol Wilcoxon