Fortune Most Powerful Women

This year's list, the most comprehensive ever, features 100 honorees worldwide, a near-record number of whom lead businesses on the Fortune 500 and Fortune Global 500.

- MARIA ASPAN, ELLIE AUSTIN, ERIKA FRY, EMMA HINCHLIFFE MICHAL LEV-RAM, KYLIE ROBISON, ORIANNA ROSA ROYLE, PHIL WAHBA, VIVIENNE WALT, CLAIRE ZILLMAN 

THIS YEAR'S LIST OF THE MOST POWERFUL WOMEN in business is the most comprehensive on record: a single worldwide list honoring 100 women. The list's new global scope and bigger scale recognize the nature of top executives' work-it spans the planet-as well as the near-record number of women who are leading companies on the Fortune 500, the largest in the U.S. by revenue, and the Fortune Global 500, the largest companies in the world.

In total, the list features 67 women with a CEO title, some of whom only recently stepped into the corner office. Margherita Della Valle became CEO of British telecom Vodafone in April. Sandy Ran Xu took over Chinese e-commerce titan JD.com in May. Vanessa Hudson assumed the CEO job at Australia's flagship carrier Qantas in September. All are the first women to hold their respective jobs.

Other executives listed here who are not yet CEO of their parent companies may be in the running to claim that seat soon. Dior chairman and CEO Delphine Arnault and Reliance Retail Ventures leader Isha Ambani, both heiresses to enormous family fortunes, are possible contenders to take over their respective family's sprawling empires: France's LVMH and India's Reliance Industries.

Still other execs are leading some of the world's most valuable startups. Canva CEO Melanie Perkins and Skims cofounder Kim Kardashian are atop unicorns that are worth $26 billion and $4 billion, respectively, and eyeing the public markets. Fidji Simo leads a company that just made that leap: Instacart's September IPO raised $660 million.