Women are impacting the global economy as never before, particularly though participation in private industry and science and technology. Private industry has only a handful of powerful women. In 2014 and 2015, only five percent, or 24 of the Fortune 500 largest companies had female CEOs. Yet, this is the most ever. Women are breaking into traditionally male dominated fields such as engineering, defense contracting, and information technology. Profiled below are women who are changing the professional landscape of privately held companies.