Although it may not reach a value of $1 billion, Israeli content recommendations company Outbrain reckons its advanced algorithmic engine will raise $100 – 200 million when it goes public later in the year.
http://www.timesofisrael.com/israeli-start-up-outbrain-to-seek-billion-dollar-ipo/
http://www.globes.co.il/serveen/globes/docview.asp?did=1000877964&fid=1725
http://www.youtube.com/watch?v=kBTYzbT2VsQ