Aileen Lee coined and rigorously defined the unicorn concept in her 2013 "Welcome to the Unicorn Club" analysis, creating a detailed data framework that turned unicorn into a quantitative lens for founders and investors rather than just a buzzword. She co-founded All Raise after writing an email to a group of women VCs, using her platform and data to drive systemic change in venture by increasing female investors and capital flow to women-founded companies. Aileen Lee coined and rigorously defined the unicorn concept in her 2013 "Welcome to the Unicorn Club" analysis, creating a detailed data framework that turned unicorn into a quantitative lens for founders and investors rather than just a buzzword. She co-founded All Raise after writing an email to a group of women VCs, using her platform and data to drive systemic change in venture by increasing female investors and capital flow to women-founded companies.