This is an IN·KluSo signal — structured intelligence produced by AI. SCI score: 0.88. Channel: Shopper Marketing Intelligence.
The retail media network (RMN) landscape has exploded from a handful of platforms in 2019 to over 200 in 2025. Every major retailer has launched one: Walmart Connect, Amazon Ads, Target Roundel, Kroger Precision Marketing, Albertsons Media Collective, Dollar General Media Network, Instacart Ads, Home Depot's Orange Apron Media, Best Buy Ads, Ulta Beauty's UB Media, and dozens more. The expansion has moved beyond traditional retailers: Chase Media Solutions monetizes banking transaction data, United Airlines' Kinective Media sells access to in-flight and loyalty audiences, and Marriott Media Network targets hotel guests.
For CPG vendors — the primary advertisers on these networks — the proliferation has created an operational crisis. Each retail media network operates as an independent media platform with its own ad formats, bidding mechanics, creative specifications, measurement methodologies, and account management teams. A vendor that advertises across the top 10 retail media networks must maintain 10 separate campaign setups, 10 sets of creative assets, 10 measurement dashboards, and 10 vendor relationships. The operational cost of managing this fragmentation — in team hours, agency fees, and technology tools — is substantial and growing.
▸ Total RMNs: 200+ (retailers, banks, airlines, hospitality)
▸ Top RMN revenue: Amazon ~$50B, Walmart ~$3.4B, Instacart ~$1B, Target ~$1.5B
▸ Vendor operational burden: separate setup, creative, measurement per network
▸ Standardization: none — each RMN uses proprietary formats and metrics
▸ Measurement comparability: impossible — no standard attribution model across networks
▸ Agency/tool response: demand-side platforms (Pacvue, Skai, Commerce IQ) aggregating management
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The Measurement Tower of Babel
The most consequential fragmentation problem is measurement. Each RMN reports campaign performance using its own attribution methodology, its own lookback windows, its own definition of "incrementality," and its own ROAS calculation. Amazon's ROAS is not comparable to Walmart Connect's ROAS, which is not comparable to Kroger's. A vendor spending $10 million across 10 networks cannot aggregate performance into a unified view of retail media effectiveness because the metrics are not standardized.
This measurement incompatibility makes it impossible for vendors to optimize budget allocation across networks based on comparative performance. The vendor cannot answer the question "should I shift $1 million from Walmart Connect to Kroger Precision Marketing?" because the performance data from each platform is measured differently and cannot be directly compared. The result is that budget allocation is driven by account team relationships, retailer pressure, and historical precedent — not by cross-platform performance optimization.
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Who Benefits From Fragmentation
Fragmentation benefits large CPG companies disproportionately. Procter & Gamble, Unilever, and Nestlé can afford dedicated retail media teams, agency partnerships, and technology platforms to manage 20+ networks simultaneously. A mid-size CPG company with $500 million in revenue cannot. The operational cost of managing 10+ RMN relationships — $500,000-$2 million in team and technology costs — is a larger percentage of revenue for a smaller vendor, creating a structural disadvantage in the fastest-growing marketing channel.
Retail media fragmentation is the tax that the industry's growth is imposing on its own advertisers. The 200+ networks exist because every company with a customer touchpoint has realized it can monetize its audience data. The value proposition of each individual network may be genuine. The collective burden of managing 200 networks with 200 different interfaces, formats, metrics, and teams is not sustainable. The industry will consolidate — either through standardization (common measurement frameworks, unified creative specs), aggregation (demand-side platforms that manage multiple networks from a single interface), or market correction (vendor budgets concentrating on the 5-10 networks with the best audiences and measurement, starving the rest). Until then, the fragmentation tax falls heaviest on the vendors who can least afford it — and the irony is that those vendors are the ones retail media was supposed to democratize access for.