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A look at the hottest young entrepreneurs in music, technology, fashion…and pickles.
Foursquare
Milo.com
FEED Projects
Posterous
Sprouter
Astor & Black
Anapata
McClure's Pickles
CyberSynchs
Eddie Frederick, Tim O'Shaughnessy
LivingSocial
Rent the Runway
iContact
Millennial Branding
Windsor Hanger, Stephanie Kaplan, Annie Wang
Her Campus
CityCraft
Occipital
Motto Agency
The Man Registry
Super Jam
LearnVest
David Graff, Brian Kaiser, John Wirtz
Agile Sports
LRMR
The Second Glass
Crowdflower
AlterG
Urban Escapes
ShowClix
The companies on this year's list don't all live online. Some of them make actual tangible goods, including affordable bespoke suits, jam, anti-gravity treadmills, and stylish tote bags.
Doing good by doing well is second nature to these young entrepreneurs, who spend time fighting hunger, volunteering in state parks, caring for the elderly, and teaching classes at a women's shelter.
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We check in for update on the entrepreneurs who have appeared on Inc.com's annual 30 Under 30 List in the past.
Mint.com founder Aaron Patzer, the founder of Mint.com (2008), sold his company to Intuit for $170 million and has been ensconced as Vice President and General Manager of Intuit Personal Finance Group.
The founders of fast-growing College Hunks Hauling Junk (2008), Nick Friedman and Omar Soliman, now have 30 franchisees.
Phreesia founders Chaim Indig and Evan Roberts, the founders of Phreesia (2008), closed a $16 million Series D investment from Ascension Health Ventures in May.
How are some of our other previous honorees faring? We asked them to share the latest developments about themselves and their companies. Here's what they had to say. Read More 
30 Under 30 - 2009
The founders of Mashable, ModCloth, Thrillist, IdeaPaint, and Justin.TV are included on our annual list of the most fascinating entrepreneurs under the age of 30. Kylie Smitley of Barley & Birch and Jamail Larkins of Larkin Enterprises were voted the favorites on the list by Inc.com readers.
30 Under 30 - 2008
Meet Mint.com's Aaron Patzer, the 20-something who built a $170 million personal-finance powerhouse, Bobby Kim and Ben Shenassafar, law-school classmates who started a popular streetwear brand called The Hundreds, and more.
30 Under 30 - 2007
Ben Kaufman empowered customers to design their own iPod gear. Sean Belnick sells chairs to the likes Microsoft and Google. They're just two of the young entrepreneurs helping to shape the future of business.
30 Under 30 - 2006
From Facebook founder Mark Zuckerberg to plant-food mogul Tom Szaky, some of the honorees on our inaugural 30 Under 30 list have become household names.
