ST Microelectronics
Produces a diverse range of devices, ranging from single transistors to microprocessors.

Texas Instruments, Inc
Designer and supplier of digital signal processors. Other products include discrete and integrated circuits, calculators, and digital light processing (DLP) technologies.

Torex Semiconductor Ltd.
Manufactures ICs and active discrete components.

Zetex Semiconductors
Manufacturers of high performance transistors, diodes, ICs and MOSFETs. Specializing in analog applications.

Advanced Analogic Technologies, Inc
Maker of analog and power semiconductors, such as power MOSFETs and power management ICs.

ON Semiconductor Corp
Manufactures and sells devices ranging from discretes FETs to logic to power management to clock distribution. Formerly part of Motorola.

Infineon Technologies AG
Produces devices for applications including memory, power, microcontrollers, communications, and consumer products.

Fairchild Semiconductor
Produces devices that address power, interface, analog, mixed signal, logic, optoelectronic, and configurable products markets.

Topix.net: Semiconductors
News about the semiconductor industry, collected from various sources on the web.

Sync Power Corp.
Especially focused on synchronous rectifiers. Offers IP as well as components such as discrete MOSFETs and controller ICs.