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How Cool is This?

The meaning of cool is always in flux. But this year, 2011, these 30 young companies embody cool. They're fighting  censorship, helping you date smarter, and chartering jets. Plus: what it takes to make it onto the list. Read more

Meet the Best-Connected 21-Year-Old in the World

Ankur Jain is the founder of the Kairos Society, a network of college entrepreneurs dedicated to changing the world through business. And socializing. Which is, in fact, business. Read more

The 2011 Honorees

99designs | Matt Mickiewicz, 27
San Francisco and Melbourne
Provides crowdsourced design services.

AdParlor | Hussein Fazal, 29; Kristaps Ronka, 24
Creates and manages ad campaigns on Facebook.

Advantage Media Group | Adam Witty, 29
Charleston, South Carolina
Publishes business books and magazines.

AnchorFree | David Gorodyansky, 29; Eugene Malobrodsky, 29
San Francisco
Makes software that provides secure Web access and thwarts government censors.

Birchbox | Hayley Barna, 27; Katia Beauchamp, 28
New York City
Subscription service that gives members monthly deliveries of high-end beauty samples.

Drop the Chalk | Jen Schnidman Medbery, 27
New Orleans
Makes software to track student academic performance and behavior.

Dropbox | Arash Ferdowsi, 25; Drew Houston, 28
San Francisco
Provides cloud-based storage for 25 million users.

evoJets | Christopher Kelly, 28; Adriann Wanner, 28
Aspen, Colorado
On-Demand priviate jet charter service.

Extreme Entrepreneurship Tour | Sheena Lindahl, 28; Arel Moodie, 27; Michael Simmons, 29
New York City
Stages entrepreneurship conferences at colleges.

Foodspotting | Alexa Andrzejewski, 27; Soraya Darabi, 27; Ted Grubb, 29
New York City and San Francisco
Restaurant recommendation app based on social sharing of food photos.

Freshii | Matthew Corrin, 29
Soup-and-salad restaurant chain, with 50 outlets worldwide.

Gemvara | Matt Lauzon, 25
Lexington, Massachusetts
Online custom-jewelry retailer.

Gianna Fair Trade | Gianna Driver, 28
San Francisco
Sells fashion and home accessories made by a worldwide network of women living in urban slums and impoverished villages.

Grasshopper | Siamak Taghaddos, 29; David Hauser, 29
Provides virtual phone systems to small businesses.

GroupMe | Jared Hecht, 24; Steve Martocci, 29
New York City
Provides group-based text-messaging services.

Hipmunk | Adam Goldstein, 23; Steve Huffman, 27
San Francisco
Clean and simple flight and hotel search site.

Ignighter | Dan Osit, 29; Kevin Owocki, 26; Adam Sachs, 28
Delhi, India, and New York City
Group dating website with more than 2 million users in India.

inDinero | Jessica Mah, 21; Andy Su, 20
San Francisco
Online money-management tools for small businesses.

Instagram | Kevin Systrom, 27; Mike Krieger, 25
San Francisco
Photo-sharing app with sophisticated image filters.

JackThreads | Jason Ross, 30
Online members-only shopping club for men.

Nom Nom Truck | Misa Chien, 25; Jennifer Green, 27
Los Angeles
A food truck that sells Vietnamese banh mi sandwiches.

Kairos Society | Ankur Jain, 21
Washington, D.C.
Not-for-profit organization for entrepreneurial college students.

Scvngr and LevelUp | Seth Priebatsch, 22
A location-aware app and a site that encourages loyalty to local businesses through discounts.

Onswipe | Jason Baptiste, 25; Andres Barreto, 24; Mark Bao, 18
New York City
Offers a Web publishing platform that allows users to easily migrate their content to touch-enabled devices.

Quora | Adam D'Angelo, 26; Charlie Cheever, 29
San Francisco
Crowd-based question-and-answer website.

The Refine Method | Brynn Jinnett, 27
New York City
A boutique fitness studio.

Sentry Centers | Christopher Kelly, 28; Ryan Simonetti, 29
New York City
Provides conference and meeting spaces to corporate clients.

The Shirt by Rochelle Behrens | Rochelle Behrens, 28
Washington, D.C.
Designs and manufactures women's shirts with a hidden placket that eliminates gaps.

Solben | Daniel Gomez Iniguez, 20
Monterrey, Mexico
Creates alternative energy products.

Unigo | Jordan Goldman, 27
New York City
Website featuring student-generated information on hundreds of U.S. colleges and universities.

Photo Galleries

The Coolest Apps

Find a flight, search for dinner, and beautify your photos. Yes, there's an app for that, and it's been created by one of Inc.'s 30 Under 30 honorees.

The Coolest Products

These products are making a global social impact, encouraging us to eat healthier, and helping us customize our own bling. Oh, and they're just plain awesome.

Meet the Young Entrepreneurs

The 30 Under 30 Class of 2011 includes founders of companies that answer our questions, manage our money, find us dates, and nourish us with healthy food. Here's a look inside the 30 coolest young companies of 2011.