2. No. 1: Dustin Moskovitz
Age: 28
Net Worth: $3.8 billion
Dustin Moskovitz, Mark
Zuckerberg's former roommate,
no longer works at Facebook, the
social networking giant that he
co-founded. A signee of Bill
Gates' and Warren Buffett's
Giving Pledge, Moskovitz bikes
to work, flies commercial, and
pitches his own tent at Burning
Man.
3. No. 2: Mark Zuckerberg
Age: 28
Net Worth: $13.3 billion
Few CEOs of any age are
under more media scrutiny
than Mark Zuckerberg (who's
only 8 days older than
Moskovitz). Since taking
Facebook public in May 2012,
and getting married days later,
the hoodie-wearing founder
has seen his net worth rise and
fall with every fluctuation of
the stock price.
4. No. 3: Albert von Thurn
und Taxis
Age: 29
Net Worth: $1.5 billion
Albert von Thurn und Taxis
first appeared in Forbes'
billionaire rankings at age 8
but officially inherited his
fortune in 2001 on his 18th
birthday. The eligible
bachelor is also a race car
driver and tours with a
German auto-racing league.
5. No. 4: Scott Duncan
Age: 30
Net Worth: $5.1 billion
Scott Duncan is the youngest
of the four children who
inherited the massive fortune
of late energy pipeline
entrepreneur Dan Duncan,
founder of Enterprise
Products Partners. Today the
company owns more than
50,000 miles of natural gas,
oil, and petrochemical
pipelines.
6. No. 5: Eduardo Saverin
Age: 30
Net Worth: $2.2 billion
Facebook co-founder Eduardo
Saverin renounced his United States
citizenship in 2011, news of which
broke days before the company's
IPO and drew accusations of tax
evasion. Saverin, immortalized in
The Social Network as Mark
Zuckerberg's onetime best friend,
settled a lengthy legal battle with
Facebook, apparently receiving a
5% stake. A Brazilian citizen, he
now resides in Singapore and
invests in startups.
7. No. 6: Huiyan Yang
Age: 31
Net Worth: $5.7 billion
Huiyan Yang, the
daughter of the founder
of real estate developer
Country Garden
Holdings, is once again
China's richest woman.
Her father transferred his
stake to the Ohio State
grad before the
company's IPO in 2007.
8. No. 7: Fahd Hariri
Age: 32
Net Worth: $1.35 billion
Fahd Hariri is the
youngest son of slain
Lebanese Prime Minister
Rafik Hariri. He
graduated from the Ecole
Spéciale d'Architecture de
Paris in 2004. While still a
student, he ran an interior
design studio on the
outskirts of the city, and
sold furniture to clients in
Saudi Arabia.
9. No. 8: Marie Besnier
Beauvalot
Age: 32
Net Worth: $1.5 billion
Marie, along with siblings
Emmanuel, 42, and Jean-
Michel, 45, inherited
French dairy giant
Lactalis, producers of
popular Président brie
among hundreds of other
cheese, milk and yogurt
brands.
10. No. 9: Sean Parker
Age: 33
Net Worth: $2 billion
Sean Parker is revamping his
much hyped start-up, Airtime,
with the hopes that the video
chat site will have the impact
of his other Web companies.
At 19, Parker skipped college
to disrupt the recording
industry with music swapping
site Napster. He served as
Facebook's first president at
age 24.
11. No. 10: Ayman Hariri
Age: 34
Net Worth: $1.35 billion
Ayman Hariri is the son of
slain Lebanese Prime
Minister Rafik Hariri.
He's involved in running
Saudi Oger, one of Saudi
Arabia's biggest
construction companies,
and the source of the
Hariri family fortune.
12. No. 11: Yvonne Bauer
Age: 35
Net Worth: $2.4 billion
Yvonne Bauer owns
85% of her family's
publishing empire. She
is the fifth generation of
the family to run the
Bauer Media Group,
which was founded in
1875. It publishes 570
magazines in 16
countries.
13. No. 12: Yoshikazu Tanaka
Age: 36
Net Worth: $1.8 billion
Founder and CEO of social-
network game site operator
Gree, Yoshikazu Tanaka has
faced stiff competition this
year from archrival DeNA
and a game initiative by
NTT DoCoMo, the giant
cellphone carrier. To get
back on track, Tanaka
moved to partner with Yahoo
Japan and went on a buying
spree.
14. No. 13: Maxim
Nogotkov
Age: 36
Net Worth: $1.3 billion
Maxim Nogotkov got
his start selling
computer programs
while in school and later
began selling cordless
phones. He dropped out
of college in order to
have more time to focus
on building his business.
He later founded cell
phone retailer Svyaznoy.
15. No. 14: Alejandro Santo
Domingo Davila
Age: 36
Net Worth: $11.7 billion
A Harvard history grad,
Alejandro Santo Domingo
Davila is the eldest son from
his jet-setting beer magnate
father's second marriage.
Now a managing director at
a New York-based
investment advisory firm,
Alejandro sits on the board
of the Metropolitan Museum
of Art in New York.
16. No. 15: Jack Dorsey
Age: 36
Net Worth: $1.1 billion
Jack Dorsey made a name for
himself as a cofounder and
leader of 140-character
microblogging company
Twitter, but most of his
fortune is derived from his
stake in mobile payment
company Square. The New
York University dropout is a
certified masseur known for
his eclectic interests, which
include, among other things,
punk music and clothes.
17. No. 16: Serra Sabanci
Age: 37
Net Worth: $1.3 billion
Serra Sabanci is the
daughter of Ozdemir
Sabanci who was
assassinated in 1996,
and a board member of
the large conglomerate
Sabanci Holding.
18. No. 17: Nicholas Woodman
Age: 37
Net Worth: $1.3 billion
GoPro founder and CEO
Nicholas Woodman built the first
camera prototypes in his bedroom
with his mom's sewing machine
and a drill. GoPro came out with
its first camera, a 35-millimeter
waterproof film version, in 2004.
Today, the camera shoots full
video in cinema quality HD,
allowing anyone from
professional surfer Kelly Slater to
amateur snowboarders to capture
their adventures.
19. No. 18: Chase Coleman
Age: 37
Net Worth: $1.4 billion
The hottest young money
manager on the planet,
Chase Coleman cooled off
a touch in 2012, but his
Tiger Global hedge fund
extended its impressive
winning streak, finishing a
third straight year with a
net return in excess of
20%.
20. No. 19: Ryan Kavanaugh
Age: 38
Net Worth: $1 billion
Ryan Kavanaugh joins the
billionaire ranks for the first
time this year thanks to his
movie studio, Relativity.
Kavanaugh is making money
by hitting singles and
doubles like the recent Safe
Haven, which cost $25
million to make and has
grossed more than $50
million at the box office.
21. No. 20: Andrey
Verevskiy
Age: 38
Net Worth: $1 billion
Andrey Verevskiy started
trading in grain when he
was 19 and founded
Kernel Holding a decade
later, growing it into
Ukraine's largest
sunflower oil producer.
Last year, Verevskiy was
elected to Ukraine's
Parliament.
22. No. 21: John Arnold
Age: 38
Net Worth: $2.8 billion
John Arnold shocked the
hedge fund world in May
2012 when he announced
he was calling it a career at
age 38. Arnold and his wife
Laura, who are signatories
of the Giving Pledge, plan
to devote much of their
time to philanthropy. The
couple have already given
away more than $1.2
billion.
23. No. 22: Gary Fegel
Age: 39
Net Worth: $1 billion
Gary Fegel attained
billionaire status in May
2011 in the wake of
Glencore's IPO. After
earning his MBA from the
University of St. Gallen,
Fegel joined the alumina
and aluminum department
at the commodities titan in
2001.
24. No. 23: Kostyantin
Zhevago
Age: 39
Net Worth: $1.5 billion
Son of a mining
engineer, Kostyantin
Zhevago took over
Poltava Iron Ore, the
largest exporter of
pellets in CIS, at the age
of twenty two, and in
2007 he took his mining
company Ferrexpo
public. An avid soccer
fan, Zhevago owns FC
25. No 24: Dan Gertler
Age: 39
Net Worth: $2.2 billion
An emerging face of
irresponsible capitalism in
Africa, Dan Gertler took his
family's fortune in diamonds
and invested it in mining
assets in the Democratic
Republic of Congo. While in
his 20s, he became a friend of
Joseph Kabila, who then ran
the military and is now the
DRC's president.
26. No. 25: Ana Lucia de
Mattos Barretto Villela
Age: 39
Net Worth: $1.15 billion
Ana Lucia de Mattos
Barretto Villela belongs to
one of Brazil's oldest and
most distinguished banking
families. She is one of the
largest individual
shareholders of a holding
company that controls
Unibanco Holding S.A.,
one of Brazil's largest
banks.
27. No. 26: Lee Seo-Hyun
Age: 39
Net Worth: $1 billion
She is the youngest daughter
of Samsung Chairman Lee
Kun-Hee. A graduate of the
Parsons School of Design,
she is vice president of the
luxury goods and fashion
division of Cheil Industries
(part of the Samsung Group),
as well as a vice president at
Cheil Worldwide, Korea's
largest advertising firm.
28. No. 27: Fang Wei
Age: 39
Net Worth: $1.5 billion
Fang Wei is best known
for buying turnaround
situations, especially
those in the steel industry.
Fangda Group now has
more than 30,000
employees across more
than 10 provinces in
China.
29. No. 28: Sergey Brin
Age: 39
Net Worth: $22.8 billion
The Google cofounder is
now director of special
projects at the Mountain
View, Calif. search giant,
leaving his counterpart Larry
Page to handle most day-to-
day operations. Brin oversees
the company's foray into
hardware and futuristic
endeavors like driverless cars
and augmented reality
spectacles known as Google
Glass.
30. No. 29: Larry Page
Age: 39
Net Worth: $23 billion
Google 's cofounder and
CEO since April 2011,
Page saw the company
through the $50 billion
revenue milestone in
2012. The stock rose
nearly 30% in the past
year, adding more than
$4 billion to Page's net
worth.