StackAdapt - Native advertising demand side platform.

Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.

MGID - MGID is a native advertising platform to acquire visitors, monetize websites, build​ new audiences, and grow traffic.

Pixfuture - Pixfuture is a self serve advertisement platform for advertisers and publishers.

Contextly - Contextly provides content recommendation system for publishers.

Digg - Digg delivers the most interesting and talked-about stories on the Web right now.