That seemed like an awfully high number. I checked a few other reputable website and they had 2 or 3!
Here are the ones they listed:
Appnexus
Adform
eXelate
BlueKai
Cross Pixel
Lotame
Quantcast
Google Adsense
Simpli.fi
Doubleclick
Rubicon
Casale Media
Lijit Networks
PulsePoint
Advertising.com
SpotXchange
Adify
MediaMath
The Trade Desk
OwnerIQ
Turn
PubMatic
AdTech AOL
Aggregate Knowledge
LiveRamp, Inc.
Adobe AudienceManager
Is there a way to get rid of all of them except for Google AdSense and DoubleClick?
Thanks!