40 Under 40

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Welcome to the 2014 40 under 40, our list of the most influential young people in business. They’re in technology, yes, but also finance, fashion, film, real estate and even plant-based food. They’re all disrupting—and they’re all just getting started.
RANK NAME AGE TITLE COMPANY
1 Travis Kalanick & Brian Chesky 38, 33 Co-founder and CEO Uber / Airbnb
2 Mark Zuckerberg 30 Founder and CEO Facebook
3 Matteo Renzi 39 Prime Minister Italy
4 Andriy Kobolyev 36 CEO Naftogaz
5 Jan Koum 38 Co-founder and CEO WhatsApp
6 Marissa Mayer 39 President and CEO Yahoo
7 Tom Farley 38 President NYSE
8 Kevin Systrom 30 Cofounder and CEO Instagram
9 Elizabeth Holmes 30 Founder and CEO Theranos
10 Mason Morfit 39 President ValueAct Capital
10 Jesse Cohn 34 Portfolio manager and head of U.S. equity activism Elliott Management
11 Ben Silbermann 32 Co-founder and CEO Pinterest
11 Jack Dorsey 37 Co-founder and CEO Square, Twitter
12 Nick Woodman 39 Founder & CEO GoPro
13 Ben Rhodes 36 Deputy National Security Adviser White House
14 Emily White 36 COO Snapchat
14 Evan Spiegel 24 Co-founder and CEO Snapchat
15 Lyndon Rive 37 Co-founder and CEO SolarCity
16 Raj Chetty 35 Economics professor Harvard University
17 Peter Wallace 39 Senior managing director Blackstone
18 Liv Garfield 39 CEO Severn Trent
19 Anthony Watson 37 Chief Information Officer Nike
20 Megan Ellison 28 Producer and Founder Annapurna Films
21 Rahul Sharma 37 Co-founder and CEO Micromax
22 Julie Smolyansky 39 CEO and President Lifeway Foods
22 Josh Tetrick 34 CEO and Founder Hampton Creek
23 Delphine Arnault 39 EVP Louis Vuitton, LVMH
24 Tang Yan 35 Founder and CEO Momo
25 Kunal Bahl 31 Co-Founder and CEO Snapdeal
25 Kevin Chou 34 Co-Founder and CEO Kabam
26 Rebecca Minkoff 33 Co-founder and creative director Rebecca Minkoff
27 Sam Nazarian 39 Founder and CEO SBE
28 Vijaya Gadde 39 General counsel Twitter
29 Robert Reffkin 35 Founder and CEO Urban Compass
30 Sophia Amoruso 30 Founder and CEO Nasty Gal
31 George Logothetis 39 Chairman and CEO Libra Group
32 Hannah Minghella 35 President of production Columbia Pictures
33 Ivanka Trump 32 Executive vice president, development and acquisitions; Founder and CEO Ivanka Trump Apparel and Accessories
34 Nate Morris 33 Founder and CEO Rubicon Global
35 Tristan Walker 30 Founder and CEO Walker & Co.
36 Sarah Kauss 39 Founder and CEO S’well
37 Alexa von Tobel 31 Founder and CEO LearnVest
38 Michael Patterson 39 Partner Highbridge Principal Strategies
39 Ellen MacArthur 38 Founder Ellen MacArthur Foundation
40 Gary Vaynerchuk 38 Co-founder and CEO VaynerMedia
9

Elizabeth Holmes, 30

Founder and CEO, Theranos
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Elizabeth Holmes, one of the 15 women on this year's 40 under 40 list, started a company now worth $9 billion.
Photograph by Joe Pugliese for Fortune

Holmes, whom we put on our cover in June, dropped out of Stanford when she was 19 to found Theranos, a revolutionary blood analytics company. Ten years later, her private, Palo Alto-based company employs more than 500 and is valued by investors at about $9 billion. (She retains more than half the stock, so you can do the math.) Theranos performs blood tests for a fraction of the price charged by competitors and without the use of a syringe. Using a painless, patented method of pricking a finger instead, it can perform as many as 70 tests at a time from just a few drops of blood—about 100th to 1000th the amount drawn by venipuncture. Wowed by the potential commercial, military, and humanitarian applications, Theranos board members include three former cabinet secretaries (George Shultz, Bill Perry, and Henry Kissinger), two former Senators, a retired CentCom commander, a retired Navy admiral, and a former director of the Centers for Disease Control and Prevention.

VIDEO

Why Elizabeth Holmes founded Theranos

Theranos founder and CEO Elizabeth Holmes speaks to Fortune’s Michal Lev-Ram about why the company was started. Read more about Elizabeth Holmes, here

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