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.
NUMEROLOGY | Which Startups Will Rule 2012? 
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.
[Infographic by Peter Oumanski]
A version of this article appears in the December 2011/January 2012 issue of Fast Company.