Accuphase
Japanese built high-end preamplifiers, power amplifiers, cd transport, digital processor, tuner, clean power supply, vintage model list.
http://www.accuphase.com/

Ultra Level Tech. Co., Ltd.
Switching Mode Power Supply in PFC AC-DC Redundant Power Share 100W to 3000W, DC-DC Converter 10W to 500W, Power application:Laser barcode printer/LED panel/LCDTV/Industrial& Medical Instruments/Telecommunication&ATM System;交換式電源供應器設計製造.主要產品主動式 PFC AC-DC交換式電源供應器100W~3000W,DC-DC電壓轉換器100W~ 500W.
http://www.ultralevel.com.tw/

Shun Shing Standard Corporation
Manufacturer of power supply products including switching power supply and AC power adaptor.
http://www.shunshinghk.com.hk/

Univ Power Corporation
Univ Power is a manufacturer of ac plug, dc plug, switching power supply, connector, bar code reader, battery power, ac dc power adapter, socket
http://www.univpower.com.tw/

Tai Chyang Electric Eng Co., Ltd.
Manufacturer of power supply, rectifier, transformer, scr rectifier, high frequency rectifier, pulse power supply, pulse-reverse power supply, transistor rectifier.
http://www.tc-power.com

Switching-Mode Power Supply Design
Switching-mode power supply circuit design problems and solutions with tutorials and resources and tips. A website about power supply design for power supply designers.
http://www.smpstech.com/index.htm

Polyfusion Electronics
Polyfusion Audio... ItÍs About Music - designs and manufactures High-End Audio components for the discriminating Audiophile.
http://www.polyfusionaudio.com/

Chroma Systems Solutions Inc.
Largest worldwide provider of power supply testing instruments and systems including programmable Power Supplies, AC and DC Electronic Loads, measurement instruments and Automated Testing Systems for power devices.
http://www.chromausa.com/

Reflection Audio Design
Manufacturer of the OM1-Quantum pre-amplifier, amplifiers, AC4 power supply and DC12 battery power supply from Stephen Balliet.
http://www.reflectionaudio.com/

Monolithic Sound
Passive and active pre-amplifier, phono pre-amplifier, dual mono and digital/analog power supply and "perpetual power plant" power supply.
http://www.monolithicsound.com/