What Is OOH Advertising? Out-of-Home DefinitionDefined.
OOH (out-of-home) advertising is any advertising that reaches consumers outside the home: billboards, transit, street furniture, cinema, and place-based media.
- 500,000+ locations
- AAM-audited delivery
- English, Spanish + 15 more languages
- Fully managed
Out-of-home (OOH) advertising is any advertising that reaches consumers while they are outside their homes — including billboards, transit ads, street furniture, cinema, and place-based venue media. It is the umbrella category that contains every physical advertising format encountered in public space.
The Out of Home Advertising Association of America (OAAA) groups OOH into formal formats: billboards (the largest segment), transit, street furniture, place-based, and cinema. In 2025, U.S. OOH revenue reached a record $9.46 billion, up 3.6% year over year and extending the category's growth to 19 consecutive quarters. Within that total, digital out-of-home (DOOH) accounted for 36.3% of spend and grew 10.5%. OOH is valued for being unblockable, brand-safe, and physically present in the real world — advantages that have grown more important as digital ad fraud and ad-blocking have eroded the open web.
Related terms:
CPM.
Pair it with
Public health
Campaigns for health departments and nonprofits.
Explore public health →Point of care
Waiting rooms, exam rooms and HCP lounges.
Explore point of care →Pharmacies
Counter, shelf and screen, at pickup.
Explore pharmacies →Community centers
Rec centers, gyms and youth sports.
Explore community centers →DOOH
Digital screens across every venue type.
Explore DOOH →