- Lattice Semiconductor
- LEDTRONICS, INC
- LEM
- Leshan Radio Company
- Level One
- LG Semicon Co.,Ltd.
- Linear Integrated Systems
- Linear Technology
- Lite-On Technology Corporation
- Littelfuse
- LOGIC Devices Incorporated
- LSI Computer Systems
- LUXPIA
- M-pulse Microwave Inc.
- M.S. Kennedy Corporation
- Macronix International
- Marktech Corporate
- Maxim Integrated Products
- Maxwell Technologies
- Micon Design Technology Corporation
- Micrel Semiconductor
- Micro Analog systems
- Micro Commercial Components
- Micro Electronics
- Micro Linear Corporation
- Microchip Technology
- Micron Technology
- Micronas
- Micropac Industries
- Microsemi Corporation
- Mimix Broadband
- Mini-Circuits
- Minilogic Device Corporation Limited
- Minmax Technology Co., Ltd.
- Mitel Networks Corporation
- Mitsubishi Electric Semiconductor
- Mitsumi Electronics, Corp.
- Monolithic Power Systems
- MOSA ELECTRONICS
- Mosel Vitelic, Corp
- Mospec Semiconductor
- Motorola, Inc
- MTRONPTI
- Murata Manufacturing Co., Ltd.