The Physical Grid: Why Brands Are Pouring Billions Into In-Store Media

NEW YORK, NY – October 01, 2026 – For the better part of a decade, the digital economy has treated the physical store as an analog relic—a final destination for transactions, but a blind spot for data-driven advertising. That paradigm is rapidly collapsing. Physical retail environments are transforming into decentralized, high-value media networks, effectively turning aisles and checkout lanes into interconnected nodes of a vast advertising grid.

According to new research released today by the Interactive Advertising Bureau (IAB) and in-store media network Grocery TV, the transition is well underway, but the infrastructure required to support it is fracturing under the weight of legacy corporate habits. The report, "In-Store Retail Media's Full-Funnel Opportunity," surveyed 100 U.S. retail media buyers and decision-makers, revealing a critical inflection point: in-store media is no longer just a bottom-of-the-funnel conversion tool.

More than 90% of respondents now evaluate in-store media using full-funnel metrics, demanding that physical screens deliver on awareness, consideration, sales lift, and repeat purchases. Yet, despite this strategic pivot, 43% of marketers admit their organizations are actively underutilizing the channel. The disconnect between ambition and execution highlights a broader systemic issue within global brand operations, where technological capability has outpaced organizational readiness.

The Turf War for In-Store Dollars

The most significant bottleneck to electrifying the in-store media landscape isn't hardware; it's the internal architecture of the modern consumer packaged goods (CPG) company. Historically, advertising within a physical store fell under the strict purview of shopper marketing or trade promotion—budgets specifically earmarked for tactical, point-of-purchase incentives like endcap displays or temporary price reductions.

Today, however, the digitization of the store demands enterprise-level brand budgets. This has ignited a turf war between localized trade marketing teams and national brand advertising divisions, each operating with separate profit and loss statements and divergent key performance indicators.

The IAB and Grocery TV data lays this friction bare. Organizations with dedicated retail media or national brand teams report significantly higher utilization of in-store media. Conversely, companies where shopper marketing retains sole ownership of the channel are far more likely to report underutilization.

"In-store has traditionally lived within shopper marketing, but our research shows that marketers are beginning to see a bigger role for the channel," said Marlow Nickell, co-founder and CEO of Grocery TV. "National media, brand and retail media teams bring different objectives, budgets and measurement approaches to the conversation. Bringing those perspectives together can help marketers incorporate in-store more deliberately into the media plan."

When capital allocation remains siloed, brands fail to capture the compounding value of a unified media strategy. Forward-thinking conglomerates are already beginning to restructure, merging these distinct financial streams to treat the physical store not as a distinct silo, but as a critical extension of their broader omnichannel media grid.

Scale Over Savings in a Fragmented Landscape

As brand dollars slowly migrate toward physical retail networks, the metrics governing investment are also shifting. In the digital advertising realm, cost-per-mille (CPM) and hyper-granular targeting often dictate media buys. In the physical realm, however, infrastructure scale is the ultimate currency.

Fifty-nine percent of survey respondents ranked inventory and scale among their top three factors when evaluating in-store digital media investments, explicitly placing it ahead of measurement opportunities and CPM costs. Advertisers are willing to pay a premium, and tolerate less-than-perfect attribution, if a network can guarantee massive, unified reach.

This demand for scale presents a complex challenge for the ecosystem. Major retail behemoths like Walmart, Target, and Kroger operate proprietary, closed-loop media networks—Walmart Connect, Roundel, and Kroger Precision Marketing, respectively. These giants leverage vast physical footprints integrated tightly with first-party loyalty data, creating formidable, centralized advertising monopolies.

To compete, independent in-store media aggregators are racing to build decentralized networks that can match this proprietary scale. Grocery TV, for instance, has aggressively expanded its footprint, operating digital advertising screens across more than 6,700 locations and reaching one in four Americans. By aggregating fragmented regional store footprints into a single, accessible platform, independent providers are attempting to offer brands the enterprise-level scale they demand without tethering them to a single mega-retailer.

Cracking the Measurement Puzzle

If scale is the engine of the in-store media boom, measurement is its faulty wiring. The IAB study identifies activation complexity and measurement limitations as the top practical barriers to further investment, with each cited by 27% of respondents. Another 23% pointed to a lack of creative resources optimized for physical environments.

Tying a digital screen exposure in a grocery aisle to a point-of-sale checkout without standard third-party verification remains a profound technical hurdle. While digital retail media networks have established, albeit imperfect, attribution models, the physical store introduces variables that digital algorithms struggle to parse.

"In-store media is becoming an increasingly important part of retail media's evolution," noted Collin Colburn, VP of Commerce and Retail Media at the IAB. "For marketers, the question now is how to integrate in-store into their media strategy in a way that makes sense for their objectives, teams and investment priorities."

To bridge this gap, the industry is rushing to establish standardized protocols. The IAB has recently pushed initiatives like Project Eidos and Campaign Data Standards 1.0, aiming to create a common, interoperable language for campaign data across all media types. Furthermore, the organization has worked to delineate physical retail spaces into five standardized zones—exterior, entrance, checkout, in-aisles, and other—using "opportunity to see" as a baseline proxy for viewable ad impressions.

Media buyers and industry analysts warn that without these standardized frameworks, the influx of brand capital will stall. Campaign reports generated by disparate retail media networks currently suffer from inconsistent methodologies, making it nearly impossible for brand marketers to calculate a unified return on ad spend across their physical media portfolios.

While a survey size of 100 decision-makers carries an inherent margin of error, it accurately captures the directional momentum of an industry in transition. The physical retail store is being rewired from a static distribution point into a dynamic, revenue-generating media asset. For brands and retailers alike, mastering the integration of this decentralized physical network with broader digital strategies is no longer just an operational upgrade, but a fundamental requirement for securing a competitive advantage in the next era of commerce.