In addition to Nadella, other leaders who attended the meeting were Jeff Bezos of Amazon, Safra Catz of Oracle, Tim Cook of Apple, Alex Karp of Palantir, Brian Krzanich of Intel, Elon Musk from Tesla, larry Page and Eric Schmidt of Alphabet -- parent company of Google, Chuck Robbins of Cisco, Ginni Rometty of IBM and Sheryl Sandberg from Facebook.