Cygnus Instruments Ltd.
Manufacturer of multiple echo ultrasonic digital thickness gauges engineered to be accurate, rugged and simple to use for material thickness measurement through coatings
http://www.cygnus-instruments.com/

Eco Physics
Website of ECO PHYSICS AG
http://www.ecophysics.com/

Ultrasound Imaging and Tomography
A technique of ultrasonic imaging of smoldering combustion.
http://www.me.berkeley.edu/mcl/usound.html

Pulsecho Systems
Manufacturer of Ultrasonic & Electronic Test & Measuring Instruments for the NDT needs of the Industry for over 20 years.
http://www.pulsecho.com/

Super Ultrasonic Co., Ltd
Super Ultrasonic Co., Ltd. Manufacturers - full automatic bubble envelop making machine, automatic file clip making machine, servo control,computer style data pocket sealing and cutting machine, non-woven t-shirt bag making machine, file index making machine, automatic business file folder making machine, pocket filter making machine, cd sleeve making machine, mask heating and forming machine products for wholesalers, importers, volume buyers.
http://www.supersonics.com.tw/

SensoTech GmbH (Germany)
Manufacturer of ultrasonic concentration measuring devices with application in polymerisation, crystallization and process control.
http://www.sensotech.com/

Resource Engineering Inc.
Manufacturer of High Performance Horizontal Arm and Vertical Spindle CMMs and Ultrasonic Scanners.
http://www.res-eng.com/

Keiyu Company
Manufacture and distribute ultrasonic and eddy current measuring and scanning devices for the nondestructive testing market. Taiwan
http://www.keiyu-ndt.com.tw/

Inventron Inc.
Manufacture a range of ultrasonic transducers and open channel primary measuring devices. Reference library and product catalog.
http://www.inventron.com/

Krohne
Variable area, magnetic-inductive, ultrasonic, mass flowmeters; level measuring instruments; flow controllers. Manufacturer, global supplier.
http://www.krohne.com