This year 's Fortune 500 list includes the greatest number of female CEOs in history . Women helm some of America 's biggest 500 corporations . Other executives to have shattered the glass ceiling include Patricia Woertz of agricultural processors Archer Daniels Midland ; Indra Nooyi who is CEO of Pepsico , Irene Rosenfeld who heads up Kraft Foods ; Ursula Burns who is CEO at Xerox and Sherilyn McCoy at Avon . Campaigners say more women are still needed on boards .
This year 's Fortune 500 list includes the greatest number of female CEOs in history . Women helm some of America 's biggest 500 corporations . Campaigners say more women are still needed on boards .