The 2011 Digital 100: The World’s Most Valuable Startups

Silicon Alley Insider | Sep. 21, 2011, 2:54 PM

Welcome to the Digital 100: The World’s Most Valuable Internet Startups! 

In this year’s list, we’ve looked at and evaluated more than 300 startups and ranked the top 100.

So what are the 100 most valuable digital startups in the world?

Facebook tops our list again, with a valuation of $80 billion, up radically from $25 billion last year and $6.5 billion the year prior.  Facebook continues to grow at a tremendous clip and now has more than 750 million users worldwide. The company reportedly earned $500 million on $1.6 billion in revenue during the first half of 2011 and is on track to do more than $4 billion of revenue for the year.

Rounding out the top five: Zynga, the social game developer; Groupon, the daily deals site; Twitter, the massive microblogging network; and Dropbox, the file storing and sharing cloud company.

Want to know what it’s like working for one of the world’s most awesome startups? Employees tell all.

Click here to scroll through the Digital 100 →

About The List

We’ve been valuing and ranking the world’s most valuable digital startups for the last 4 years. We started with 25 companies, and this list soon expanded into the SAI 50+. Now it’s the Digital 100.

This year, we’ve expanded our search and analysis yet again. We found a ton more companies that are earning a lot of money and / or growing their businesses rapidly. The result is this year’s new and improved “Digital 100” — 100 of the world’s most valuable private digital startups.

Notable companies not included onDigital 100 logo circle last year’s list include Airbnb, the apartment rental service, and Rovio, the maker of Angry Birds, and dozens of others.

What’s New

It’s been a crazy year for technology companies. Many of the top companies from last year’s list have gone public, like LinkedIn andPandora. Many others, like Groupon and Zynga, have filed to go public. A lot of young companies are receiving wild valuations. Some of last year’s leaders have stumbled and fallen.


We used the same valuation methodology as have the last three years, which you can read about in detail here. Obviously, our valuations are only as good as the information we have, so please feel free to comment in the post or send an email

The Digital 100 Top Ten:

1. Facebook

2. Zynga

3. Groupon

4. Twitter

5. Dropbox

6. Wikipedia

7. Vente-Privee

8. LivingSocial

9. Craigslist

10. Palantir Technologies

See all in order →

Complete Coverage

In A-Z Order

The Complete List 1-100

The Biggest Movers 





We want to thank the hundreds of readers, companies, investors, and executives who have taken time over the past few months to submit nominations and share information with us. We thank our colleague Zach Lichaa for performing most of the background research. In addition, we thank our generous sponsors Buddy Media and NYSE for making the project possible. The valuations were estimated by Henry Blodget, Alyson Shontell, and Nicholas Carlson. Sharespost also aided some of the valuations. For a complete Sharespost index, click here.

Read more:

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