Trillboards is a digital out-of-home advertising platform that helps brands plan and activate audience-based campaigns across screens in the United States. Its curated catalogue includes 102 audiences, such as brand visitors, commuters, auto intenders, shoppers, and behavioural or demographic groups. Advertisers can use live deal IDs to buy these audiences through a demand-side platform or marketplace, or ask Trillboards to develop a media plan.

The platform connects out-of-home exposure with follow-up advertising on mobile, web, and connected TV. Trillboards says its audience insights and measurement draw on cameras at participating screens, a national mobile panel, and its own device graph. Campaign reporting can include impressions, reach, audience composition, and store-visit outcomes. The company also offers planning, pricing information, creative specifications, research, documentation, and tools for campaign delivery and measurement. Its services are designed to help advertisers assess who encountered an ad and evaluate related visitation behaviour. Trillboards lists audience pricing from $4 CPM and supports campaigns across multiple US markets, with screen inventory and audience availability varying by buy.