| 1. Harch Hyperbarics |
| Providing hyperbaric oxygen therapy and undertaking research. Includes discussion of neurological applications and research finding, plus a meetings calendar. Harvey, Louisiana, USA. |
| http://www.harchhyperbarics.com/ |
| 2. 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. |
| http://www.hyperbaricsinternational.com/ |
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| 3. 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. |
| http://www.baromedical.com/ |
| 4. The Hyperbaric Medicine Group |
| Provides consulting and ongoing management services as well as conducting research projects. Explains principles and applications of this treatment. Salt Lake City, Utah, USA. |
| http://www.hbotgroup.com |
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