Engine

Clearstream was originally founded as a video verification company in 2011 by advertising industry veterans. Advertisers have been clamoring for a seemingly small amount of premium inventory, and consequently overpaying in a vicious supply and demand economy. Using a combination of object and audio detection, ground-breaking viewability technology, and comprehensive content and audience targeting capabilities, Clearstream provides brands with a TV-like buying experience in a progressive, digital world. Clearstream was acquired by the Engine Group in November, 2015. In addition to the cash proceeds already realized, Serra holds a stock position in Engine Group.