NTI
NTI is a leading manufacturer of test instruments for the professional audio industry and the broadcast market. NTI stands for Test Instruments perfectly designed for the Audio and Voice Analysis. The Minstruments and Rapid Test series are developed for the user's special needs.
http://www.rub-and-buzz.com/

Sensor Technology Limited
Sensor Technology Ltd. offers piezoelectric materials, acoustic transducers, hydrophones, actuators, instrumentation and systems for applications such as marine navigation, geophysical surveys, underwater explorations, broadband acoustic transmission and laboratory research.
http://sensortech.ca/

Optel sp. z o.o. (Poland)
Techniki ultrad?wiêkowe: badania nieniszcz¹ce, g³owice ultrad?wiêkowe, defektoskopy, karty ultrad?wiêkowe do PC, nadajniki, odbiorniki i wzmacniacze, ultrad?wiêki mocy, prace badawczo - rozwojowe w zakresie akustyki i biometrii. Rozpoznawanie palców przy pomocy holografii ultrad?wiêkowej.
http://www.optel.com.pl

Manta Test Systems Inc.
products and services related to protective relay testing, measurement, control
http://www.mantatest.com/

Transducer Techniques
Transducer Techniques offers a complete array of force and load measurement solutions including load cells, beam load cells, force sensors, torque sensors, signal conditioning, load cell displays, and data acquisition systems.
http://www.transducertechniques.com

Ohmart International
Manufacture and worldwide sales of non-contact level measurement, density measurement, weight measurement process control equipment.
http://www.ohmart.com/

P. G. Stein - Consultants in Measurement
Measurement Certainty and Calibration
http://www.measurement.com

Ing.-Buero Thomas Fuchs
We offer gauges for the photodiode array spectroscopy, film thickness measurement and plasma emission monitoring, especially for in-line measurement tasks.
http://www.applied-spectroscopy.com/

Ultrasound Field Simulation
Ultrasim
http://www.ifi.uio.no/~ultrasim/

National Measurement System
The National Measurement Act, legal metrology, authorities, trade measurement, training at the National Standards Commission, Australia.
http://www.measurement.gov.au/