National Athletic Trainers' Association
NATA is an organization dedicated to improving the health and well-being of athletes worldwide. The Association is committed to the advancement, encouragement and improvement of the athletic training profession. This site contains placement listings, meeting and symposium information, membership opportunities and headline news.

National Association of Sport Officials
NASO is the world’s largest organization for sports officials working at every level and all sports. Their mission is to serve as the leading source of officiating information, programs and services. Naso.org contains educational materials, awards, officiating links, special reports and membership information.

National Federation of Professional Trainers
NFPT's mission is to provide an affordable, convenient, comprehensive, and applicable education for personal trainers; offer organizational certification credentials, establish a network of support and facilitate and encourage the exchange of ideas and experience. Their web site contains certification information, discussion forum, consultation software and more.

National Fitness Therapy Association
NFTA is dedicated to improving the quality, standards and outcomes of preventive health care services while also educating and informing the public on health, fitness and wellness issues. Their site contains a list of accredited fitness facilities, advice on how to select a trainer and association information and updates.