Jelli's cloud-based Supply-Side & Demand-Side Platforms allow you to buy and sell radio advertising programmatically. Publishers: Manage audio inventory in real-time. Advertisers: Purchase targeted audience-based campaigns in minutes with instantly available compliance reporting. 245 million people listen to the radio every month— that's more than both Google & Facebook. Jelli can help streamline how you sell air time and help optimize marketing ROI with the power of programmatic radio.