A non-Profit group composed of diving scientists who are dedicated to the establishment and maintenance of standards for scientific diving. - More

Directory of operators, hotels, magazines and allied members, with information on local recompression chamber. - More

The Controlling Body of Underwater Hockey in the United Kingdom. - More

Dive team which provides assistance in the recovery of persons or evidence in the Great Lakes region especially in environments beyond recreational diving limits. Includes description of training, FAQ, and photographs. - More

A non-profit environmental organization dedicated to ocean conservation with large stock photo archive. - More

Based in Canada, with worldwide operations. Lists ACUC dive centers, information about training programs, and provides some online services for Canadiand and USA members. - More

A Commonwealth Government not-for-profit diver training and accreditation scheme, for occupational divers. - More

Offers a complete scuba diving guide to The Islands of The Bahamas. - More

UK-based not-for-profit organization, dedicated to facilitating projects that enhance global coral reef conservation and research, offering opportunities to volunteers. Includes news, expeditions, and contact information. - More

Official website of the CDAA. Information on training, dive sites, site maps, news, instructors, products and photographs. - More

Promotes safety and cooperation among local dive operators. Includes Code of Safety Requirement and Standards. - More

A non-profit scuba diving and dive safety association providing expert medical advice for underwater injuries, emergency information, research, and products. - More

Represents companies whose mission is to promote and help provide growth within recreational diving. Includes news, calendar of events, and information on membership. - More

The certifying body for commercial divers working in the Canadian Offshore oil and gas industry. - More

US centric, organization for deep sea divers, commercial and military, retired and active. - More

Fundraising charity for disabled diving training. Includes on-line store, members, sponsors, and humor. - More

The HDS aims to protect and preserve diving heritage. Everything about historical divers, diving history, underwater technology, inventions and submarine engineering. - More

A non-profit organization for rescue and recovery divers. Features membership and conference information, mission statement, contacts, news and photos. - More

SMART Divers was organized to assist public service agencies and organizations with underwater search, recovery, and crime scene investigations. - More

An organization of dentists who enjoy the activity. Features information on the group, newsletter, photos and contacts. - More