The US digital advertising market has entered a decisive new phase in 2026. Three forces — connected television, programmatic technology, and retail media — are reshaping where budgets flow, how audiences are reached, and what measurable outcomes look like. For brands looking to enter or grow in the United States, understanding these shifts is no longer optional.

Connected Television Takes the Lead

For the first time, US ad spend on connected television (CTV) has overtaken traditional linear television. Streaming platforms have matured their advertising tiers, and audiences that once watched broadcast schedules are now fully fragmented across Netflix, Peacock, Paramount+, and a long tail of ad-supported services.

What makes this significant for marketers is not simply the audience size — it is the precision. CTV combines the emotional impact of a full-screen video format with the targeting logic of digital. Advertisers can reach households by income bracket, purchasing behaviour, or even past interaction with a brand's website. Measurement, long the weakness of television, has improved substantially through panel-plus-digital attribution models.

"CTV has stopped being an experiment and started being the default. Brands that are still treating it as a test budget are already behind." — US media buyer, Q1 2026

Brands entering the US market should treat CTV as a primary channel rather than a supplementary one. CM Beyer advises international brands on structuring US media plans that account for this shift from the outset, avoiding the common mistake of over-allocating to legacy display formats.

Programmatic advertising — the automated, real-time purchasing of digital ad inventory — now accounts for the vast majority of US display and video transactions. The anticipated collapse of the ecosystem following third-party cookie deprecation did not materialise as predicted; instead, the industry accelerated its adoption of privacy-safe alternatives including clean rooms, first-party data partnerships, and contextual targeting.

Identity resolution has consolidated around a handful of interoperable standards, giving advertisers the ability to recognise and reach audiences across publishers without relying on individual tracking. For brands with strong first-party data assets, this environment is favourable. For those without, building a data strategy is now a prerequisite for efficient media buying.

The Federal Trade Commission's guidance on digital advertising continues to evolve alongside these technological changes, with increasing scrutiny on data practices and transparency in automated buying. Compliance is a practical consideration, not merely a legal one.

You can read more about building first-party audience strategies in our guide to content marketing for lead generation.

Retail Media Networks Become a Major Force

Retail media has moved from an emerging channel to a structural feature of the US advertising market. Amazon remains the dominant player, but Walmart Connect, Target's Roundel, Kroger Precision Marketing, and dozens of smaller retailer networks now offer advertisers access to shopping intent data at scale.

The proposition is straightforward: retailers hold first-party data on what consumers actually buy, not just what they browse. For performance-focused advertisers, particularly in consumer packaged goods, this offers closed-loop attribution that no other channel can replicate. A campaign can be traced from impression to in-store or online purchase within the same data environment.

The growth of retail media is also reshaping agency structures. Specialist retail media buying functions, separate from traditional digital teams, are now standard at major US agencies. Brands working with a general-purpose agency without dedicated retail media capability risk being underserved in this segment.

For an overview of how the broader US market operates for international entrants, see our article on understanding US consumer behaviour.

The 2026 US digital advertising landscape rewards brands that invest in data infrastructure, embrace programmatic efficiency, and build CTV into their core media strategy. Working with an experienced US media adviser like CM Beyer gives international brands a structured path into a market that is both vast in opportunity and demanding in its complexity.