Bracco Diagnostics, Inc.
- Responsible for developing new clinical agents, filing them with appropriate regulatory agencies, and selling all products within the United States and Canada.
- http://www.bracco.com/

Berlex Canada Inc
- Ultrasonics contrast agents.
- http://www.berlex.ca/

Products used in contrast ultrasonography
- Christopher R.B. Merritt (Sang Thrombose Vaisseaux), abstract
- http://www.john-libbey-eurotext.fr/en/revues/stv/a47D00094.htm

Modeling of ultrasound contrast agents
- Christian Cachard
- http://creatis-www.insa-lyon.fr/menu/iultrasonore/demos/demo-contrast-agents-characterization/index-us.html

Point Biomedical Corporation
- Developing acoustically responsive microspheres for use in myocardial perfusion imaging. San Carlos, California, USA.
- http://www.pointbio.com/