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18. Marc Benioff
18. Marc Benioff
CEO, Salesforce.com

The Oracle vet has always been on the outside, raging against the machine of big software. But his web-based sales service is now fully in the mainstream. Everyone wants in on cloud software, and Salesforce stock has been on a tear, up 63% over the past year. And companies have been lapping up his new Chatter service, which adds a social layer to CRM. Further evidence of Benioff becoming The Man: This summer he announced that Salesforce would spend $278 million on land in San Francisco's Mission Bay to build a new headquarters.


NEXT: 19. Marc Andreessen
Last updated November 19 2010: 10:47 AM ET
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