Celtra is a Cloud-based Creative Management Platform for digital advertising. They have pioneered HTML5 authoring with integrated creative serving, designed from the start for mobile advertising. It is an agnostic solution enabling the most advanced video, display and native ad products with the greatest distribution reach in the industry. Since 2011, Celtra has acquired over 400 clients globally across the digital media and advertising landscape. Their platform powers ads for more than 3,500 brands and 2/3 of Fortune 500 advertisers.