• Top 40
  • A-Z
  • Just missed it
  • Fast risers
  • 8 over 80
A-Z
Rank Name Age Company
10 Marc Andreessen 38 Netscape, Opsware, Ning, Andreessen Horowitz
12 Tim Armstrong 38 AOL
9 John Arnold 35 Centaurus Advisors
35 Charles Best 34 DonorsChoose.org
36 Gina Bianchini 37 Ning
1 Sergey Brin 36 Google
33 Erin Burnett 33 CNBC
32 Rio Caraeff 34 Vevo
38 Wendy Clark 38 Coca-Cola
13 Cesar Conde 35 Univision Networks
24 Eran Egozy 38 Harmonix Music Systems
31 Matthew Flannery 32 Kiva.org
34 Ralph Gilles 39 Dodge, Chrysler
7 Jonathan Gray 39 Blackstone
27 Tony Hsieh 35 Zappos.com
18 "Pony" Ma Huateng 38 Tencent
26 Josh James 36 Omniture
16 Jay-Z 39 Translation Advertising
8 Jason Kilar 38 Hulu
25 Max Levchin 34 Paypal , Slide
19 Seth MacFarlane 36 Family Guy
21 Marissa Mayer 34 Google
37 Keith Meister 36 Icahn Capital
4 Aditya Mittal 33 ArcelorMittal
3 James Murdoch 36 News Corp.
1 Larry Page 36 Google
29 Aaron Patzer 28 Mint.com
23 Xiaofeng Peng 34 LDK Solar
15 Kevin Plank 37 Under Armour
24 Alex Rigopulos 39 Harmonix Music Systems
30 Danny Rimer 39 Index Ventures
28 Brian Sack 39 New York Fed
31 Premal Shah 34 Kiva.org
40 Ben Silverman 39 IAC
11 Lorenzo Simonelli 36 GE Transportation
5 Biz Stone 35 Twitter
16 Steve Stoute 39 Translation Advertising
22 Paul Touradji 38 Touradji Capital
14 Raul Vazquez 38 Walmart.com
20 Kevin Warsh 39 Board of Governors of the Federal Reserve System
39 Casey Wasserman 35 Wasserman Media Group
17 Meredith Whitney 39 Meredith Whitney Advisory Group
5 Evan Williams 37 Twitter
6 Tiger Woods 33  
2 Mark Zuckerberg 25 Facebook
From the Nov. 9, 2009 issue
Quick Vote
Who's more influential?
  • Google's Sergey Brin and Larry Page
  • Golfer Tiger Woods
  • Financial analyst Meredith Whitney
  • Rapper and entrepreneur Jay-Z
Quiz
Can you pass the '40 under 40' test?
See how much you know about business's hottest rising stars
1. Which member is a fan of Green Day and an avid fencer?
a) Facebook's Mark Zuckerberg
b) Google's Sergey Brin
c) Under Armour's Kevin Plank
d) Roc-A-Fella's Jay Z
Video (1 of 3)
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