- Aquamatic - Offers a sound velocity sensor, AQSV-1500, with no moving parts for measuring the velocity of sound in salt or fresh water.
- Cool Sound Industries, Inc. - Offers an environmentally safe method of air conditioning, heating and refrigeration powered by the use of thermoacoustic technology or soundwaves.
- Information Unlimited - Supply ultrasonic blasters and generators, which generate a protective shield of high pressure complex sonic shock waves that may be used for laboratory and field research.
- Parametric Difference Waves for Low Frequency Acoustic Propagation - Unclassified/commercial mind control technology.
- PPB Megasonics - Offers cavitation metrology instruments that measure the energy and frequency in ultrasonic and megasonic cleaning baths, nozzle streams and films, cell disruptors and homegenizers.
- Thin Film Ultrasonic Transducer for Accurate Control of Fastener Clamp Load - NASA (USA)
- Ultrasonic Translator SK-207 (Transtronic) - Electronic kit. Hear car brakes, gas leaks or even bats.
