Whenever there's mention of a new CEO opening in tech, former Yahoo CEO and former Google vice president Marissa Mayer's name always seems to come up. However, Mayer raised some eyebrows in 2020 when instead of turning up at another Silicon Valley giant, she launched startup Sunshine to focus on the seemingly "smaller" problem of contacts. Mayer and co-founder Enrique Muñoz Torres started working on Sunshine in 2018 to automate the mundane task of organizing contact information. The company also has Sunshine Birthdays and Sunshine Circles that delve into organizing birthdays and sharing information with groups. "The idea is that Sunshine Contacts basically becomes the brain that operates your contacts," Mayer told CNBC back in 2020 when the app was launched.

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Persons: Marissa Mayer's, Mayer, CNBC's Julia Boorstin, Enrique Muñoz Torres Organizations: Yahoo, Google, CNBC, Summit, Sunshine, Lumi Labs Locations: Sunshine, Santa Barbara , California