NC Servo Technology
Sales and 24 hour service for Servo Valves, Proportional Valves, AC/DC, Servo Motors, Drives, and Encoders. Thousands of brand names stocked. 734-326-6666. View our partial inventory online.
http://www.ncservo.com/

Conch Electronic Co., Ltd.
本公司為一間工業儀錶、人機、SCR、SSR、電子計數器、交直流電壓電流錶、轉速錶、光電開關、近接開關、控制器、驅動器等專業製造公司。台南市科技一路3號
http://www.conch.com.tw

ServoMaster
ServoMaster: Platform and Hardware Independent RC Servo Controller Driver
http://servomaster.sourceforge.net/

Inocam
Developers of CAM (Computer Aided Manufacturing) software solutions including Inocontrol - high performance 2D/3D motion controller supporting stepper and brush/brushless servo drives.
http://www.inocam.com/

Astrometric Instruments
Provider of custom telescope control systems, including the SkyWalker servo telescope control system and SkyRad accessory controller.
http://www.astrometric.com/

PID controller design and tuning on Internet
PID controller laboratory providing free interactive applets for robust PID tuning, design and loop simulation based on known or unknown process model
http://www.pidlab.com

HARDI sprayer Controller and monitor
HARDI products include field sprayers, liftmounted sprayers, self propelled, orchard and wine sprayers, handheld
http://www.hardi-international.com/Product_and_Solutions/Monitors_and_Controllers/default.htm

General Servo & Spindle Motors, Inc.
Repair and remanufacture AC servo motors and DC servo motors.
http://www.generalservo.com

Servo Repair International, Inc.
Servo Repair International repairs and replaces AC servo motors and DC servo motors from a wide variety of manufacturers in the electronic and motion control industries. In addition to servo motors, we service feedback packages, servo amplifiers and many other motion control related products.
http://www.servorep.com

Lenze Group
Manufactures servo drives, amplifiers and controls, servo motors, and planetary gearboxes.
http://www.simpleservo.com/