Key takeaways
- U.S. retail media ad spend is on track to reach $71.09 billion in 2026, creating more opportunities for CMNs to grow beyond the on-site inventory they own.
- Off-site social and connected TV (CTV) spend are outpacing on-site growth, proving the market is strong for CMNs that extend their first-party data across channels they don’t own.
- CMNs can extend the value of their shopper relationships beyond owned-and-operated (O&O) inventory by strengthening first-party data, building scalable audiences, expanding off-site activation, and connecting data with media through curation.
Amazon and Walmart command much of the market, but billions in retail media spend remain available to other networks. While the other 277 CMNs operating globally may not compete on scale, the playing field is level for using their data off-site.
The opportunity isn’t tied to any one capability. CMNs need infrastructure that connects first-party data and identity to activation and measurement, so they can extend the value of their shopper relationships beyond the data and inventory they own.

What CMNs need to know about moving off-site
O&O placements still offer stronger margins. On-site ad margins can reach 70-90%, compared with 20-40% off-site. But CMNs can sell only so much media across the properties they own. Moving off-site gives them another way to create media opportunities from their first-party shopper data.
Off-site commerce media uses a CMN’s first-party audience data to reach shoppers beyond the network’s O&O properties. That can include social, programmatic, CTV, and other media environments. Commerce media powered social ad spend is projected to reach $7.76 billion in the U.S. in 2026, with CTV close behind at $6.10 billion. For CMNs, that means the value of their shopper relationships doesn’t have to stop at the edge of their owned inventory.
Off-site media can bring those opportunities closer to the physical point of sale, too. Digital screens in places such as gas stations and convenience stores give CMNs another way to connect with shoppers near moments of purchase. Some of this inventory can be available programmatically, connecting these physical environments with a CMN’s broader off-site media strategy.
The infrastructure question: What off-site actually requires
When CMNs make their data available across the open web, CTV, or social media, their first-party signals need to connect with the identifiers used across those environments. Without that connection, less of a CMN’s audience may be available for off-site activation.
The financial stakes continue to grow. U.S. CTV ad spend is expected to reach roughly $38 billion in 2026, with most of it trading programmatically. A substantial share of open CTV programmatic spend currently goes to inaccurate identity data. Advertisers can improve the efficacy of their CTV campaigns by working with CMNs that have a strong identity infrastructure and relevant data.
Identity resolution helps connect a CMN’s first-party signals to additional addressable identifiers, making more of its audience reachable across environments. A consistent identity layer can then connect that audience to activation across channels and tie campaign exposure back to measurable outcomes.

CMNs don’t need to build that infrastructure themselves. Some may develop identity capabilities in-house, and others can work with a neutral infrastructure partner. A neutral infrastructure layer can connect first-party data, identity, activation, and measurement without competing for the CMN’s media or representing the buyers on the other side. That gives CMNs a consistent foundation across media environments without requiring separate data integrations for each partner.
How CMNs can take first-party data off-site
Early off-site activation has shown how CMNs can take their first-party data beyond O&O properties to help brands reach more shoppers across more media environments. To do that, CMNs need a way to connect their audiences to the platforms and media where brands want to reach them. The approach can vary based on how much technology, campaign execution, and media control the CMN wants to manage directly.
Four operating models have emerged:
The operating model may differ, but the underlying requirement is the same: CMNs need to connect first-party data with addressable identifiers so brands can reach those audiences beyond the CMN’s O&O properties. A segment that can’t match to addressable IDs may have limited off-site reach, and lower match rates can reduce the share of a CMN’s audience that a brand can reach across CTV or the open web.
Expanding beyond O&O: Onboarding and the addressability challenge
CMNs looking to extend the value of their data beyond O&O inventory should focus on two connected areas: strengthening their identity foundation, then onboarding and activating their audiences across more environments.
1. Strengthen your identity foundation
Before CMNs can activate audiences off-site, they need accurate, complete first-party data. Experian’s Offline Identity Resolution helps CMNs resolve first-party data to a consolidated consumer profile, reducing duplication and improving the accuracy of their audience data. Offline Identity Append adds additional information such as name, phone, and address to first-party data, helping CMNs build more complete audience profiles.
Together, these capabilities give CMNs a stronger data foundation for audience creation and activation.

2. Onboard, model, and activate audiences
CMNs may have limited direct integrations with the platforms where brands want to activate their audiences, which can restrict where their first-party data can go off-site. Onboarding connects C
CMN audiences to more activation destinations so advertisers can use those audiences across the open web, connected TV (CTV), social media, and other channels. Experian Onboarding connects first-party data directly to more than 70 programmatic, social, and TV platforms instead of routing through intermediaries. It runs on our identity graph with 4.2 billion active digital IDs refreshed weekly.
For smaller CMNs, audience modeling can help address another challenge: audience size. Modeling can expand a CMN’s existing segments to reach more people with similar characteristics, giving advertisers more scale while staying grounded in the CMN’s first-party data.
For CMNs, stronger identity data and broader activation can make more of an onboarded audience reachable, creating more opportunities for advertisers to build awareness, drive sales, and achieve other desired outcomes.
CMNs can pair onboarding with curation to bring data and inventory together, giving them more control over inventory quality and campaign execution. Experian Curated Deals supports this support this approach by helping marketers, platforms, and publishers create media opportunities that combine data and inventory in one place.
This combination gives CMNs a path from stronger first-party data to larger, more addressable audiences and broader activation opportunities.
A playbook for CMNs still building off-site
Networks developing an off-site strategy should focus on four priorities:
Across each of these priorities, the goal is connection. Experian provides the neutral infrastructure layer that connects a CMN’s first-party data and identity with activation and measurement across the media environments where advertisers want to reach shoppers. This approach helps CMNs expand their options while keeping their data and business relationships at the center.
For CMNs that can’t compete on owned inventory alone, off-site activation creates another path to growth. Stronger first-party data, scalable audiences, broader activation, and curated media opportunities can help CMNs make more of the shopper relationships they already have.
Grow your commerce media network off-site with us
About the author
Doug McLennan
Sr. Director, Product Management
Doug McLennan is the Sr. Director of Product Management at Experian Marketing Services where he oversees audience and activation products. His past work includes managing syndicated audiences at Oracle Data Cloud and building personalized video ad products at an agency. Doug lives in Colorado and skis as much as his family will allow.
FAQs
Off-site commerce media uses a CMN’s first-party audience data to reach shoppers beyond the network’s owned sites and apps. That can include CTV, social, and programmatic.
CMNs are investing in off-site advertising because O&O inventory has a natural limit. Off-site activation gives CMNs more opportunities to offer advertisers greater reach by extending their shopper data across channels, helping brands connect with audiences beyond the CMN’s owned properties.
Identity resolution gives CMNs a foundation for connecting first-party data to the addressable identifiers used across off-site media. Experian builds on that foundation as a neutral infrastructure layer, connecting first-party data and identity to activation and measurement without competing for the CMN’s media. This gives CMNs more flexibility in how and where they reach audiences across CTV, social, and programmatic channels.
Audience onboarding connects addressable audience segments to advertising platforms for activation. For CMNs with limited direct platform integrations, Experian Onboarding connects their first-party audiences to more programmatic, social, and TV platforms, giving brands more ways to reach those audiences through off-site campaigns.
A consistent identity foundation and regular audience refreshes can help CMNs maintain addressability as identifiers and household signals change. Experian is the neutral infrastructure layer that connects first-party data and identity to activation and measurement, helping CMNs extend their audiences across off-site channels while keeping their data and business relationships at the center.
CMNs can measure off-site campaigns by connecting media exposure across environments such as CTV and programmatic display to subsequent outcomes. Experian’s consistent identity foundation connects activation to measurement, helping CMNs tie ad exposure to actions such as online purchases, store visits, or other measurable actions and understand what’s driving campaign performance.
Latest posts
Five Norwegian startups selected to establish U.S. presence NEW YORK, Aug. 15, 2016 /PRNewswire/ — Tapad, the leader in cross-device marketing technology and now a part of Experian, has announced its new entrepreneurial mentorship initiative, the Propeller Program. Five early-stage startups from Norway have been chosen by Are Traasdahl, native of Norway and Tapad’s CEO and founder. The selected companies will share Tapad’s New York City workspace, receive C-level guidance and help establish a U.S. presence. The following companies have been selected to participate in the inaugural Propeller Program – a 12-month program beginning September 19, 2016: Bubbly – Developers of a platform that enables in-store customer feedback with dashboards and tools that facilitate real-time store response BylineMe – A marketplace for freelancers, publishers and brands to connect for content creation and distribution services Eventum – A property-sharing group that digitally assists in securing venues for meetings and corporate events Xeneta – A database that organizes the best contracted freight rates in real time and on demand “We are supporting startups that we feel represent the future of service offerings,” said Traasdahl. “It is with incredible pride that we invite these entrepreneurial teams from Norway to join us in New York Citythis year. Mentorship opportunities for early-stage companies are so important, particularly for those based outside the U.S. I look forward to giving the Propeller Program participants access to the expertise of my seasoned team and to our wide network of resources. Hopefully, it will be a game-changing year for many of them.” Contact us today
As partnership deals mount, aggressive hiring underway for unified cross-screen technology leaders NEW YORK, July 19, 2016 /PRNewswire/ — Tapad, the leader in cross-device marketing technology and now a part of Experian, has announced plans for aggressive expansion in the Asia Pacific (APAC) region. This move capitalizes on Tapad’s exceptional performance for brands and marketing technology companies in North America and Europe. With it’s proprietary Tapad Device Graph™, the company will enable global, regional and local clients and partners to understand, monetize and measure marketing to users across screens. The Tapad Device Graph is recognized as the most accurate, scalable cross-screen solution in the market today. The decision to expand into APAC was based on increased demand from global, as well as local, brands and clients, many of which have a strong market presence throughout the region. In addition to expanding its roster of world-class data partners, plans include building a world-class team in Singapore. Over the next few months, Tapad APAC will also establish local entities in additional markets. To accelerate its ramp-up, Tapad APAC is actively recruiting in many areas, ranging from skilled and experienced solutions engineers to seasoned sales and marketing professionals. “Tapad is thrilled to be answering the call for cross-device excellence in APAC,” said Pierre Martensson, GM of Tapad APAC. “Our Device Graph is adding millions of devices daily and achieves unmatched levels of scale and accuracy while protecting consumer privacy. This meets a critical need in the region.” Tapad appointed Martensson as General Manager of Tapad APAC in May, kicking off expansion in the region. Martensson comes to Tapad with nearly a decade of operations experience throughout APAC, having transformed, developed and grown global organizations. To learn more about partnership and employment opportunities available with Tapad in APAC, visit www.experian.com/careers. Contact us today
B2B marketers can now deliver the right message to the right user at the right time across devices and channels NEW YORK, NY–(Marketwired – Jun 1, 2016) – Madison Logic, one of the world’s fastest growing companies dedicated to solving the digital needs of B2B marketers, is partnering with Tapad, the leading provider of unified and now a part of Experian, cross-screen marketing technology solutions. Now business-to-business (B2B) marketers can power targeted advertising and content syndication programs across all channels, including smartphones, computers and tablets. The increasing shift in content consumption across mobile devices makes cross-device identification and attribution a top priority for B2B marketers. The Madison Logic and Tapad partnership gives B2B marketers unprecedented reach and scale with the ability to run always-on, cross-device, account-based marketing programs targeting decision makers who are actively researching similar products and services. “Screens are everywhere and so is the B2B buyer,” said Vin Turk, SVP of Audience Development for Madison Logic. “This partnership allows marketers to harness the power of Madison Logic’s intent data and combine it with Tapad’s cross-device solutions to connect with the most-likely-to-convert prospects with hyper-relevant content wherever and whenever they’re doing their research.” “Relevance is essential to the success of B2B marketers, particularly now, when breaking through the clutter is difficult,” said Dave Fall, COO of Tapad. “This partnership with Madison Logic allows marketers to leverage their existing customers while identifying and reaching new audiences with messaging tailored to every device.” For more information about Madison Logic’s account-based marketing platform, please visit https://www.madisonlogic.com/account-based-marketing/. For more information about Tapad’s cross-platform advertising solutions, please visit https://www.experian.com/marketing/consumer-sync. Contact us today