Danaher Controls
- Manufacture of encoders including; incremental, linear, absolute, intrinsically safe, and motor mount types. Product specification sheets viewable online as well as in PDF.
- http://www.dynapar-encoders.com/

Heidenhain
- Manufactures and markets position-measuring linear and rotary encoders and machine controls.
- http://www.heidenhain.com/

Heidenhain Optics & Electronics Co., Ltd.
- Manufacturers linear, angular and rotary encoders. From China.
- http://www.heidenhain.com.cn

Industrial Encoder Corporation
- Manufacture of precision optical encoders.
- http://www.globalencoder.com

MicroE Systems
- Manufacturer of high-resolution rotary and linear optical encoder systems. The encoders are small, accurate, robust and deliver an high nanometer-level resolution, repeatability and accuracy.
- http://www.microesys.com/

MICOS GmbH - Motion Control and Electronics
- MICOS GmbH is specialised in developing, manufacturing and marketing of components and systems in the range of positioning technology for research and industry.
- http://www.micos-online.com/

Photocraft, Inc.
- Manufacturer of hollow shaft encoders, wheel encoders, programmable encoders, and absolute encoders. Data sheets viewable online and in PDF.
- http://www.photocraftencoders.com

Gurley Optical Encoders
- Manufacture of rotary and linear optical encoders, absolute and incremental encoders and quadrature encoders. All data sheets in PDF.
- http://gpi-encoders.com

Leine & Linde AB
- Manufacture optical angle encoders and hollow shaft encoders of incremental and absolute types. Concise data sheets online, complete data sheets in PDF. Based in Sweden.
- http://www.leinelinde.se/

Stegmann Inc.
- Manufacturer of absolute encoders, linear encoders, incremental encoders, and servo motor feedback systems. All data sheets in PDF.
- http://www.stegmann.com/

Hohner Corp.
- Manufacturer of rotary optical encoders, incremental encoders, and absolute and analog encoders. Some models are configurable by USB. Data sheets downloadable in AutoCAD dwg and dxf formats. From the UK.
- http://www.hohner.com/

BEI Technologies, Inc.
- Manufacturer of optical rotary incremental encoders, rotary absolute encoders, and precision trackballs. Concise specifications viewable online. Complete specification sheets in PDF for download.
- http://www.beiied.com/

NorthStar Technologies Inc
- Manufactures encoders, including rotary encoders, tachometers, position systems, linear encoders, and linear optical encoders. Product specification sheets in PDF.
- http://www.northstarencoders.com/

Encoder Technology
- Designs and manufactures rotary and linear optical encoders and related products. All product specification sheets only in PDF.
- http://www.encodertech.com/

Industrial Encoders Direct
- Manufacturers and distributors of rotary incremental shaft encoders, rotary absolute shaft encoders. Based in the UK.
- http://www.industrialencodersdirect.co.uk

Encoder Products Company
- Makers of incremental shaft encoders including hollow shaft, explosion-proof, industrial, instrument grade, commutation, and c-face encoders.
- http://www.encoderproducts.com/

Servo-Tek Products Company, Inc.
- Manufacturer of encoders, DC and panel tachometer generators, and position and velocity sensors.
- http://www.servotek.com/

Encoders India
- Manufacturer of rotary encoders, tacho generators, resolvers, encoder couplings, and digital read outs.
- http://www.encodersindia.com

US Digital
- Manufacturer of incremental and absolute optical encoders, inclinometers, PC interfaces, digital readouts, switching power supplies, flexible shaft couplings and encoder testing products. Prices listed.
- http://www.usdigital.com/