Coull

Coull is a UK-based advertising technology company headquartered in Bristol, England.

It specializes in video monetization and digital advertising, offering innovative ad formats that enhance the value of video content. Through its “OverStream Suite” and related tools, Coull helps advertisers engage with video audiences while providing publishers with new revenue opportunities. The company provides a range of services, including video advertising technology, publisher monetization support, and access to a marketplace for selling video inventory. Its product offerings include various in-video ad formats such as InStream, OverStream, OnPause, and DoubleUp, as well as contextual in-video overlays through Vidlinkr. Coull partners with notable brands like Nike, Renault, and Unilever, and collaborates with publishers such as Unilad and Snack Media to facilitate effective digital campaigns.