Retail media has moved from a niche tactic to one of the fastest-growing channels in US digital advertising. For brands selling through major retailers, understanding how these networks operate is no longer optional — it is a prerequisite for staying competitive on the virtual shelf.
What Retail Media Networks Actually Are
A retail media network is an advertising platform built and operated by a retailer. Rather than buying space on a publisher's site, brands pay the retailer directly to appear within its own digital ecosystem — search results, product pages, category listings, and increasingly off-site placements like social media and connected television.
The critical advantage is data. Retailers hold first-party purchase data that is extraordinarily precise. They know what shoppers buy, how often, in which categories, and at what price points. That data, applied to ad targeting, produces relevance that broad demographic targeting simply cannot replicate.
"The shift toward retail media is fundamentally a shift toward purchase-intent audiences. You are reaching people who are already in a buying mindset, not just browsing content."
Amazon Advertising is the dominant force in the US market. Sponsored Products, Sponsored Brands, and Sponsored Display campaigns together give brands options across the full purchase funnel. Amazon's DSP extends reach beyond Amazon-owned properties, making it a serious competitor to traditional programmatic channels.
Walmart Connect and the Challenger Landscape
Walmart Connect has grown substantially in recent years, driven by Walmart's unique position as America's largest grocery retailer. Its omnichannel data — combining online behaviour with in-store purchases — gives it a distinctive targeting capability, particularly for household staples, health, and food categories.
Walmart Connect also encompasses in-store digital screens, self-checkout placements, and the Walmart app, creating touchpoints that exist entirely outside the browser. For brands with strong mass-market appeal, this physical-digital integration is a meaningful differentiator.
Beyond Amazon and Walmart, networks operated by Target (Roundel), Kroger, Instacart, and others have expanded the landscape considerably. Each platform carries its own audience profile, ad formats, and measurement methodology, which means brands managing multiple retailer relationships face genuine complexity. Working with a specialist such as CM Beyer, who advises US brands on retail media strategy, can help cut through that complexity and allocate budgets where they will perform.
Building a Retail Media Strategy That Works
Brands new to retail media often make the mistake of treating it as a direct extension of paid search. The mechanics overlap, but the strategic considerations are distinct. Catalogue health — accurate titles, strong imagery, competitive pricing, and sufficient reviews — determines whether paid visibility actually converts. Sending traffic to a weak product listing wastes spend.
A sound approach starts with understanding which retailers are most important for your category, then building campaigns that address each stage of the shopper journey. Sponsored product ads capture high-intent search traffic near the point of purchase. Display and video formats build awareness earlier in the funnel. Measurement should track not just return on ad spend within the platform but the halo effect on organic sales and overall brand share.
For brands entering the US market or restructuring their approach, resources like the retail media planning guides at cmbeyer.com provide practical frameworks for navigating the major platforms.
It is also worth understanding the regulatory environment. The Federal Trade Commission has increased scrutiny of digital advertising practices, and retail media placements must meet standard disclosure requirements for paid content. Staying across FTC guidance protects brands from compliance risk as spend in this channel grows.
For further context on how retail media fits within a broader digital strategy, see our related coverage on programmatic advertising basics and building a US ecommerce presence.
Retail media networks are not a passing trend. As third-party cookies continue their decline and first-party data becomes increasingly scarce outside retailer walls, the networks that Amazon, Walmart, and their peers have built will only grow in strategic importance. Brands that invest in understanding and mastering these platforms now will be significantly better positioned as the channel matures.