Diana Ryall was managing director at Apple Australia from 1997 to 2001. While holding this position, Apple Australia was recognized by Hewitt Associates as "Employer of the Year." Since leaving Apple, Ryall founded Xplore for Success, a company that offers services to organizations to support professionals achieve personal success. The Xplore programs have challenged over 5,000 women and men since 2002 and can be seen in organizations such as American Express, CBA, Deloitte, Department of Commerce, Centrelink, GHD, Luxottica, KPMG, and NAB.
From 2005 to 2008, Ryall led the Chief Executive Women's (CEW) Talent Development Program, providing further skills for senior women in their career development. From 2006 to 2008, she was vice president of the CEW and was one of the authors of the CEO Kit, which provides pragmatic ways to measure gender diversity initiatives. Ryall was also part of the judging panel of the Australian Best Employers program, and she sat on the panel for Deloitte's Businesswomen of the Year awards.
Ryall is the deputy chair of the board for Dress for Success Sydney. Dress for Success is part of a global charity, with headquarters in New York and more than 110 affiliates, that supports disadvantaged women in their quest for self-sufficiency.
On January 26, 2010, Ryall became a member of the Order of Australia, AM. This award was given on the basis of her work with Apple in the education community, her support of women through Xplore for Success, her charity work with the National Breast Cancer Foundation, and Dress for Success.