- Ninety-Nines, The
 - An international organization of women pilots founded in 1929.  Canadian 99s
- International chapter of the 99s in Canada which features details of Canadian sections, profiles of Canadian women pilots, rallies, events, articles, and related links.- Central New York
- Chapter of the International Organization of Women Pilots encompassing the Syracuse and Utica areas.
- Monterey Bay, California
- Find out about the chapter's events, meetings, and members.
- North Central Section
- Home page of North Central Section of the International Organizaton of Women Pilots, the 99s. Site features office bearers, membership details, history, and links to its 22 chapters from nine states.
- Santa Clara Valley, California
- For women pilots with monthly flying events, meetings, educational opportunities, and network support.
- South Central Section
- Features organization profile, history, calendar of events, publications, and sholarships awarded by the South Central Section of 99s.
- Southwest Section
- Learn about activities and the history of the Southwest Section 99s and its members.
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