- Fairchild Semiconductor
- FCI connector
- Filtran LTD
- Filtronic Compound Semiconductors
- First Components International
- Formosa MS
- Freescale Semiconductor, Inc
- Fuji Electric
- Fujitsu Media Devices Limited
- Galaxy Power, Inc.
- Gamma Microelectronics Inc.
- GE Solid State
- General Electric Company
- General Semiconductor
- Gennum Corporation
- GHz Technology
- Gilway Technical Lamp
- Global Mixed-mode Technology Inc
- Golledge Electronics Ltd
- GOOD-ARK Electronics
- GSI Technology
- GTM CORPORATION
- Hamamatsu Corporation
- HANAMICRON
- Hanbit Electronics Co.,Ltd
- Hantronix,Inc
- Harris Corporation
- HB Electronic Components
- Hi-Sincerity Mocroelectronics
- Hirose Electric
- Hitachi Metals, Ltd
- Hitachi Semiconductor
- Hittite Microwave Corporation
- Holt Integrated Circuits
- Holtek Semiconductor Inc
- Honeywell Solid State Electronics Center
- Hongfa Technology
- HTC Korea TAEJIN Technology Co.
- Humirel
- Hynix Semiconductor