Harch Hyperbarics
Providing hyperbaric oxygen therapy and undertaking research. Includes discussion of neurological applications and research finding, plus a meetings calendar. Harvey, Louisiana, USA.

National Baromedical Services
Provides education, research and consulting services in North America, with an electronic library database and information on training. Includes details of The Baromedical Research Foundation.

Hyperbarics International
Offers a course in advanced chamber and medical techniques to physicians, dive supervisors and rescue personnel. Includes detailed curriculum and possible applications. Key Largo, Florida.

The Hyperbaric Medicine Group
Provides consulting and ongoing management services as well as conducting research projects. Explains principles and appplications of this treatment. Salt Lake City, Utah, USA.