ISVR Consultancy ServicesSave
Self-supporting advisory unit within the Institute of Sound and Vibration Research at the University of Southampton in the UK, involved in teaching, research and consultancy in sound and vibration. http://www.isvr.co.uk/
NPL AcousticsSave
Our most fundamental role is to develop and maintain primary measurement standards for sound in air and water across a wide range of frequencies, from the infrasonic to tens of megahertz. http://www.npl.co.uk/npl/acoustics/