Also on the list are Swatee Singh, Vice President of GMS IM Platforms and Big Data Capabilities at American Express, where her focus is to make "business personal."

She is the brains behind American Express 'MyOffers' which aims to give members "what they want when they need it."

She is also responsible for a tool that allows merchants to compare their annual performance.

Next on the list is Vijay Subramanian, Chief Analytics Officer at Rent the Runway, an online service that provides designer dress and accessory rentals.

Subramanian built a model to estimate missed demand, product longevity, and occasion usage for the company's inventory- a huge cost-saver for a company that buys truckloads of dresses and accessories from fashion designers every season to rent to customers.

His next mission is to incorporate new types of data from Unlimited, the company's major new expansion into everyday wear, Fortune said.

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