3. ScoreCard Research 92.9% comScore, Inc.
27. Zemanta 5.2% Zemanta, Inc.
32. Integral Ad Science 4.2% Integral Ad Science, Inc.
33. VoiceFive 3.5% comScore, Inc.
36. AppNexus 1.2% AppNexus Inc.
9. ScoreCard Research 92.9% comScore, Inc.
10. VoiceFive 3.5% comScore, Inc.
25. Integral Ad Science 4.2% Integral Ad Science, Inc.
33. Sizmek 1.1% Sizmek Technologies, Inc.
37. Zemanta 5.2% Zemanta, Inc.