Directory Listing(s) :| Alabama Tennis Association | | A district of the United States Tennis Association, Southern Section. Rankings, tournament results, and membership information. |
| Asian Tennis Federation | | A regional collaboration of 43 Asian country's member federations to improve the quality of Asian tennis. Provides player development, tournaments, and financial assistance. |
| ATP Tour | | Official site for the organization overseeing the professional men's tour. Offers comments on players, results in tournaments, a calendar of events, and photos from tennis competitions. |
| Canadian Tennis Association | | The governing body of tennis for Canada. Rankings, tournaments, newsletters, and officiating. Site in English and French. |
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