Which Startups Will Rule 2012?

Venture capitalists, corporations, private-equity firms, and more poured billions into private companies this year–a huge boon for titans like Facebook and Groupon. Here, the best of the rest starting 2012 with supersize bankrolls.

Glympse, $8M

Smartphone app shares location for set period of time.

Zeo, $12M

At-home tech analyzes your sleep patterns.

StumbleUpon, $17M

Online platform highlights the most-talked-about web content.

Inrix, $37M

Real-time maps reveal patterns for traffic, weather, and more.

ShoeDazzle, $40M

Virtual marketplace sells stylist- and Kardashian-recommended merch.

Rovio Mobile, $42M

Budding mobile-games empire includes Angry Birds.

ZocDoc, $75M

Free web directory helps customers book doctors.

Gilt Groupe, $138M

Flash sales for fashionistas and more.

Coda Automotive, $147M

Flagship car gets 150 miles per charge.

Square, $159M

Tiny dongle turns smartphones into credit-card readers.

Box.net, $162M

Cloud storage service lets users access files from anywhere.

LivingSocial, $400M

Groupon’s close competitor now touts 46 million members.

Brightsource Energy, $459M

New solar plant will power 140,000 homes.

Zynga, $485M

Social-gaming empire includes CityVille and FarmVille.

Twitter, $800M

Microblogging platform generates 200 million tweets per day.

Groupon, $966M

Daily-deals pioneer filed for IPO in June.

Facebook, $1.5B

The social-networking powerhouse now serves more than 800 million users.

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