Programmatic DOOH Advertising in Canada

What is programmatic DOOH?

Buying digital out-of-home screen time through an automated auction rather than a negotiated contract. You bid for individual ad plays across many screens and owners at once, targeted by audience, location, time and often by external triggers.

The unit is the ad play, not the two-week poster cycle. That is the fundamental difference from a classic OOH buy, and it is what makes daypart, weather and audience triggering possible.

It also changes what a campaign can be. A brand can run one message on Toronto screens during morning commute and a different one on Vancouver screens at lunchtime, adjusted the same day, without renegotiating anything.

How much Canadian DOOH is traded programmatically?

Around 14.4% of Canadian DOOH spending in 2025, well behind the United States at roughly 24% in 2024.

We would attach a caveat to that number. It comes from invidis, a credible trade publication, but the underlying research house is not named and we could not trace it to a primary source. Treat it as directional.

What is not in doubt is the direction. Canadian DOOH is now over 60% of Canadian OOH revenue and COMMB's 2024 measurement update added API-ready programmatic capability, meaning COMMB-verified impressions can flow directly into programmatic buys. The infrastructure is in place; adoption is following.

Which platforms are actually active in Canadian DOOH?

A short list, and two of the most important are Canadian companies. One name you may still see quoted no longer exists.

Compiled by Simplicity Media, September 2026.

What are the buying routes for Canadian DOOH?

Four, and they are not interchangeable. Knowing which one a quote came through tells you most of what you need to know about it.

• Direct with the media owner. Pattison, Astral, Quebecor, Branded Cities and the regional owners. The only route for most classic inventory, for transit domination packages, and for landmark sites.
• Programmatic guaranteed or private marketplace. Fixed inventory and price, negotiated with the owner and transacted through a platform. Astral's inventory has been available this way since 2018.
• Open exchange. Auction-based across many owners. Strongest for audience-led targeting and short flighting, weakest for guaranteeing exactly where you appear.
• Self-serve marketplaces. The low-budget end. Useful for testing, though the Canadian figures these platforms publish are their own and unattributed.

How does Simplicity buy programmatic DOOH?

We offer programmatic DOOH, and direct is our default. We hold direct relationships with the Canadian owners — including regional and independent owners larger agencies do not typically trade with — so the route is chosen on the brief rather than on what we can reach.

The case for buying direct in Canadian OOH is unusually strong, for reasons specific to this market:

• Supply is concentrated. A handful of owners control most Canadian inventory, including regional and independent owners larger agencies do not typically trade with. Direct relationships are worth more here than in a fragmented market.
• The best sites are never on an exchange. Landmark spectaculars, station dominations, transit wraps, custom builds and experiential are negotiated, not auctioned.
• Peak windows go to committed buyers. Direct commitments get filled first. The open exchange gets what is left, which in a Q4 Canadian market is not much.