Zhongxu Microelectronics Co., Ltd.
Manufacturer of magnetic sensors using series Hall effect sensors. From China.
http://www.zhongxu.com/

Melexis Microelectronic Systems
Melexis Microelectronic Systems manufactures microelectronic integrated systems, ICs, Hall-effect Position Sensors, Sensorless BLDC Motor Drivers, LED driver ICs, rfid tags and more for the automotive industry.
http://www.melexis.com/

ChenYang Technologies GmbH & Co. KG
Hall ICs, HKZ101, HKZ101S, HKZ121, 2AV16A, Gaussmeter, Oscilloscope,2AV51A, 2AV56, 2AV63, 2AV31E-J,Hall Effect gear tooth sensors, GT sensors, Hall Effect vane sensors, Hall effect current Sensors, Hall Switch
http://www.cy-sensors.com

Smith Systems Inc.
Smith Systems manufacturer of superior temperature sensors, atex electronics, flow sensors, speed sensors, proximity sensors, cable harnessing, smart sensors, automotive racing sensors, atex electronics certified sensors
http://www.smith-systems-inc.com/

Sensor Solutions Corp
Sensor Solutions manufactures speed sensors, hall effect sensors and sensors for proximity, direction, linear and rotational position, height, and flow. Dynamic site lists hundreds of options.
http://www.sensorsolutions.info/

Semiconductor physics: research and publications
Homepage von Rainer A. Deutschmann
http://www.rainer-deutschmann.de

MagneLink Inc.
Manufacturer of magnetically activated switches using reed and hall effect technology.
http://www.magnelinkinc.com

Quantum Hall Effect
Boris Skoric introduces the subject of his disseration on theoretical physics.
http://members.home.nl/skoric/quantum/

Aymroad Pty.Ltd.
We provide ISO 9000/ QS 9000/ OHS + Environment consulting, Management System auditing, Quality Audit training and Microscopic Tachograph Chart analysis services. We sell Tachograph Charts, Laser Speed Measuring Devices, Vibration Recorders and Hall Effect Transducers.
http://www.aymroad.com.au/

Condensed Matter Links
Links related to crystals, mathematical modeling, quantum liquids and the Hall effect, among others.
http://web.mit.edu/afs/athena.mit.edu/user/r/e/redingtn/www/netadv/condetc.html