At A Glance
Reaching the right audience is becoming more challenging as digital advertising grows increasingly fragmented, and privacy regulations change. 33Across addresses this by providing real-time intent signals and contextual insights, helping marketers connect with consumers across devices like CTV, mobile, and desktop. Integration into Experian's marketplace makes these solutions more accessible, helping advertisers achieve measurable results.In our Ask the Expert Series, we interview leaders from our partner organizations who are helping lead their brands to new heights in AdTech. Today’s interview is with Allison Dewey (Director, Data & Curation) at 33Across.
Navigating complexity in digital advertising
Digital advertising is more fragmented and privacy-constrained than ever. How is 33Across helping marketers cut through that complexity to drive real outcomes, and what makes your approach distinct?
Reaching audiences without compromising scale or performance is one of the toughest challenges for marketers. Users consume content across multiple devices and channels, making it difficult for marketers to identify and accurately target them with the right message. 33Across segments leverage AI-powered contextual and behavioral signals across privacy-safe environments to help marketers accurately identify audiences, whether they’re streaming content on their connected TV or researching products on their mobile device. What sets us apart is that we don’t just identify valuable audiences; we help marketers also target cookieless inventory and power it with real-time signals.

Marketplace integration milestones
What excites you most about bringing 33Across audiences into Experian’s data marketplace?
We’re excited to bring 33Across audiences into Experian’s data marketplace because it connects our unique segments with a powerful data ecosystem that marketers already trust. Buyers looking to activate audiences that are both privacy-safe and performant continue to tap into the Experian data marketplace for high-quality, high-performing data. We offer a wide range of audience verticals, including B2B, demographic, retail purchase data, interest and intent, and political data. In addition, we offer the ability to create custom segments across verticals.

Our intent-based audiences, built from contextual and engagement signals, help buyers reach consumers on CTV, desktop, or mobile devices with scale. Being part of Experian’s data marketplace accelerates access to these audiences, drives better ROI, and helps brands future-proof their strategies today.

Retail demand signals
Retail brands are racing toward privacy-safe, first-party data. Which 33Across retail datasets or segments are experiencing the highest demand, and what makes them a must-have?
Retail marketers are leaning into contextual and behavioral intent signals to complement their first-party data strategies. At 33Across, we’re seeing high demand for segments tied to shopping intent, including in-market consumers browsing for categories like fashion, home goods, electronics, and health & wellness.
What makes these segments essential is their real-time nature – they can capture consumer interest as it happens. For retail brands looking to expand their reach while respecting privacy, our segments offer scalable, actionable intent that drives results.

B2B without cookies
Reaching real B2B decision-makers at scale is tough with or without signals. How does 33Across deliver both precision and reach in this environment?
B2B marketing often struggles with balancing scale and specificity. 33Across addresses this by combining contextual precision with AI-modeled behavioral signals; this segment approach reaches professionals actively engaging with relevant content and topics, even in environments where IDs are unavailable. Marketers gain access to more signals and, in turn, better reach from 33Across’ unique publisher integrations and audience curation built from machine learning and AI.
We surface intent through content consumption patterns and contextual engagement, unlocking valuable, privacy-safe signals at scale. Allowing B2B marketers to reach real decision-makers in a signal-sparse world.

Use cases
With retail, B2B, and beyond, can you share an example of how brands in these verticals are utilizing your audiences?
Top brands that have a user-focused approach use 33Across audiences to drive scale; performance. These brands enable our segments to precisely reach the right users across devices and increase conversion rates; brand awareness. By reaching the right users, brands have higher conversion rates and increase campaign efficiency.

Supply path innovation
As identifiers disappear, advertisers are looking for scalable, privacy-safe ways to reach real people. How is 33Across helping unlock more addressable inventory and drive performance?
By combining contextual, semantic, and engagement-based signals, we deliver intent-based targeting that performs across CTV, display and video. Higher addressability helps marketers not only extend their reach but also deliver personalized messaging across digital channels in a privacy-compliant way.
Contact us
About our expert

Allison Dewey
Director of Data and Curation, 33Across
Allison Dewey is the Director of Data & Curation at 33Across, where she oversees data partnerships, integrations, and supply-side curation. With a deep expertise in audience targeting and signal optimization, Allison plays a key role in connecting data into the programmatic world. Allison holds a Bachelor’s degree in Psychology from Bates College.

About 33Across
Rooted in over 15 years of data expertise, 33Across harnesses signals to enrich and expand marketers’ audiences and reach them wherever they consume content. Built from over 300 billion proprietary data signals, we apply machine learning and AI to create over 1,500 B2C and B2B segments using privacy-first principles to reach audiences.
Cookieless targeting FAQs
By using contextual and engagement-based signals, advertisers can target consumers across CTV, mobile, and desktop in a privacy compliant way, even as identifiers become less available.
Segments tied to shopping intent, such as consumers browsing fashion, electronics, or health products, are highly sought after because they capture real time interest and drive results.
Combining content engagement patterns with machine learning allows marketers to reach professionals actively engaging with relevant topics, even in environments where IDs are unavailable.
Privacy safe targeting uses real time contextual and behavioral signals to deliver relevant messaging across devices and channels without compromising consumer trust.
Real time intent signals allow advertisers to capture consumer interest as it happens, helping demand side platforms and brands deliver timely, relevant ads that increase engagement and drive conversions across devices like CTV, mobile, and desktop.
Latest posts

Marketers aren’t thinking in channels anymore: they’re thinking in audiences. As consumer media habits have scattered across devices, platforms and formats, brands have shifted their focus from managing one channel at a time to delivering a connected experience. That’s the core of omnichannel marketing: meeting people where they are and making each touchpoint feel like part of a larger narrative. However, most brands still encounter the same roadblocks: siloed data, fragmented planning and tools that don’t integrate. And while the industry talks a great deal about omnichannel marketing, few are actually doing it well. The brands that figure it out won’t just reach more people; they’ll improve brand perception while improving the customer journey, achieving better outcomes, and optimizing their media spend more efficiently. Learn more about this trend in our 2025 Digital trends and predictions report. Learn more Why omnichannel is no longer optional Omnichannel marketing has long been a goal, but recent shifts in media and technology now make it a necessity. According to Forrester, 21% of global B2C business and tech professionals identified enhancing omnichannel or cross-channel customer experiences as a top priority for their organization today. Connected TV (CTV) and commerce media networks are emerging as dominant channels, necessitating the coordination of messaging across an expanding ecosystem of streaming, programmatic display, and commerce-driven environments in addition to the multitude of other addressable (and non-addressable) channels. Fortunately, identity solutions continue to evolve, enabling marketers to maintain audience addressability in digital channels even as traditional signals decline and privacy regulations intensify. Consumers expect this kind of cohesion. They don’t see “channels" – they just see a brand. A member of your loyalty program might browse a product online, see the exact item later on their socials, and then receive an email offer. If those messages feel disconnected or out of sync, this will not be a good customer experience, and a brand risks wasting impressions and losing conversions. Omnichannel isn’t about showing up in more places. It’s about showing up with a consistent message. The opportunities inherent in true omnichannel execution Despite the industry’s movement toward omnichannel marketing strategies, there are a few untapped opportunities brands would benefit from pursuing. Break down planning silos to optimize performance Many marketers still plan and measure media in silos: programmatic display, CTV, commerce media, search, social, email, SMS, and each might have their own budgets, strategies, and KPIs. This disjointed approach leads to inconsistent messaging, inefficient spend, and overexposure or underexposure to key audiences. The opportunity? Shift toward integrated media planning and measurement. By aligning teams and KPIs across channels, marketers can optimize frequency, coordinate creative sequencing, and better attribute business outcomes. Breaking down internal silos improves the customer experience and drives more effective performance. With two-thirds of North American CMOs naming siloed data as their biggest obstacle, those who solve it stand to gain a clear advantage. Encourage interoperability to activate audiences consistently Omnichannel success depends on defining an audience once and reaching them everywhere. But in today’s ecosystem, where walled gardens control inventory and many tools remain disjointed, this is easier said than done. Just under a third of marketers say the tools they use don’t work well together. The opportunity? Invest in interoperable systems that give you control over your data and privacy-safe solutions like clean rooms or universal IDs that enable consistent audience activation across platforms. Advocate for a unified identity framework Audience data remains fragmented: commerce media networks control shopper data, TV platforms hold viewership data, and walled gardens provide limited data transparency and determine which data they will share, making it difficult to recognize, reach, and follow the customer journey across digital touchpoints. Without a unified view, campaigns remain disconnected and cross-channel attribution is difficult. The opportunity? Advocate for a centralized, privacy-conscious identity framework that bridges fragmented data sources. This would allow marketers to recognize consumers across platforms and deliver cohesive messaging. Marketers need solutions that enable connected audience activation while respecting privacy requirements and platform-specific constraints. Without this, omnichannel remains an aspiration rather than a reality. Data and identity: The tools you need in your toolkit to make omnichannel work Implementing omnichannel right starts with establishing identity. Brands need a foundation that lets them connect the dots: across data, platforms and channels. Here’s how: Build a unified identity foundation “A single view of the customer is the foundation of a successful omnichannel program,” says Forrester in a December 2023 report on omnichannel. This begins by connecting disparate data sources, including persistent offline information, such as addresses, emails, names, and phone numbers, with digital signals, in a privacy compliant way. And this, in turn, creates a strong identity foundation. Solutions that integrate hashed email addresses (HEMs), mobile ad IDs (MAIDs), IP addresses, CTV IDs, and universal IDs enable brands to resolve customer identities across different platforms, ensuring that campaigns remain addressable as users transition between channels. Activate audiences everywhere, without the hassle Brands should be able to define an audience once and activate it across all addressable channels without unnecessary complexity. Interoperability between demand-side platforms (DSPs), supply-side platforms (SSPs), clean rooms, and private marketplaces (PMPs) ensures that high-quality audiences are matched with premium inventory in a targeted, transparent, and efficient manner. This connectivity helps maintain consistent audience targeting—even as consumers engage in different environments. By working with a partner that seamlessly integrates with major platforms, marketers ensure that data quality and identity resolution remain intact throughout campaigns, avoiding data loss that occurs when data is transferred between different, disparate platforms. Measure across channels, and the customer journey Effective omnichannel marketing isn’t just about reaching audiences—it’s about understanding how different touchpoints contribute to conversions. Advanced attribution models, incrementality testing, and cross-platform frequency management enable brands to use consistent identity across campaign planning, activation and measurement so they connect ad exposures to real-world outcomes. Achieving this requires a strong identity resolution partner—one that can unify audience data across environments and power accurate, privacy-compliant measurement at scale. The future of omnichannel marketing Omnichannel is becoming the baseline expectation for modern marketing. The brands that figure out how to connect the dots across the increasingly disparate media landscape will drive better performance and build stronger customer relationships. By working with a partner that can offer you an end-to-end data and identity solution focused on consumers, not channels, you can better understand your best customers (and your next customers), reach them across channels, and measure cross-channel campaigns more effectively, making true omnichannel execution more achievable. Get started today About the author Kimberley Klevstad Account Director, Retail, Experian Kimberley Klevstad is 25-year industry veteran with a wide range of experience driving strategic growth for global accounts across print, online, mobile, location-based and streaming audio platforms. Kimberley is currently a member of the Experian Marketing Services Retail team, advising top retail brands on data and identity strategies that will deepen loyalty and drive acquisition in an increasingly competitive landscape. Latest posts

Audigent, a part of Experian, is excited to announce that curated audience and contextual inventory packages are now accessible on Google Display and Video 360 (DV360), delivered via Index Marketplaces. These premium deals offer industry-leading targeting solutions, combining high-quality data and inventory to enhance scale, value, and performance across connected TV (CTV), display, and online video (OLV). The integration launches with over 250 ready-to-run deals covering various sectors, including some available for DV360 buyers for the first time, such as automotive, B2B, seasonal retail, sports fandom, travel, and weather, among others. Each deal combines exclusive audience data with premium inventory under a single DV360 deal ID. The supply-side activation lets you scale campaigns without cookies or device IDs, so results stay consistent even as traditional tracking disappears. "We’re excited to expand Audigent’s curated, data-enriched packages in DV360 with Index Exchange. Putting Experian’s audiences and Audigent's premium supply inside a single deal ID accelerates smarter decisions for marketers—letting brands activate, test, and see results right away.”Chris Feo, Chief Business Officer, Experian Why these packages stand out Unique targeting and supply packages Each package fuses exclusive data with handpicked inventory and ships as a single, ready-to-trade deal ID. Deep partner bench Audiences are sourced from first-party publisher data as well as data leaders such as Experian, Affinity Answers, Acxiom, Bombora, Circana, Dun & Bradstreet, Resonate, Sports Innovation Lab, The Weather Company, and more, providing buyers with deterministic purchase, intent, behavioral, and lifestyle signals in one flight. Future-proofed addressability Packages rely on Audigent’s identity framework, contextual intelligence, and supply-side data activation rather than third-party cookies or device IDs, keeping reach intact as identifiers fade. Three reasons these packages drive results Signal-agnostic reach: Cookieless, device-less targeting preserves scale today and tomorrow. Instant activation: Traders simply add the pre-curated deal ID to a DV360 line item and go live in seconds. Built-in quality assurance: Exclusive audience data is paired with hand-vetted inventory, so you start closer to KPIs from day one. Direct-to-source media buying that pays off By packaging curated, data-enriched deals directly atop Index Exchange, via the Index Marketplaces platform, Audigent eliminates extra hops and integrates premium partner data into a single price, with no additional data management platform (DMP) fees. That means higher match rates, simplified audience management, and a cleaner, greener path that concentrates spend on top-tier publishers. Paired with Index Exchange’s omnichannel reach, brands see stronger performance and lower waste, no trade-offs required. "Our goal with Index Marketplaces is to streamline access to premium supply, high-quality data, and measurable outcomes. Hosting Audigent's ready-to-run deals on Index lets DV360 buyers tap addressable inventory curated for scale, sustainability, and speed – no extra steps, just better results."Paul Zovighian, Vice President of Marketplaces, Index Exchange Real-world use cases Audigent’s deep data collaboration bench isn’t window dressing; it’s baked into every package. Deterministic signals from Experian and fellow data leaders come pre-loaded, so you tap high-intent, high-match audiences the instant you activate a deal ID. In-market auto shoppers Reach consumers actively researching specific vehicle types, such as compact cars, SUVs, trucks, or luxury models, using deterministic data from Experian. These segments predict purchase intent within the next 180 days, enabling the delivery of accurate messaging at the moment of consideration. B2B account growth Target decision-maker employees at companies segmented by employee count: 11–50, 51–250, or 251+, using Dun & Bradstreet’s data. Or reach small business professionals and business decision-makers via deals utilizing Bombora’s data assets. Sports fandom Engage verified MLB fans based on purchase behavior, powered by Sports Innovation Lab. Extend reach to contextual sports content, including live sports and sports-related programming across CTV and OLV. Seasonal retail bursts Engage gift-givers and in-market segments for gifts and occasions. Target DIY home improvers and verified affinity audiences for home projects. Reach back-to-school families by targeting parents preparing for the school year with Affinity Answers’ event-based segments. Weather-driven behavior Activate campaigns based on how real-time or forecasted weather conditions (like sunny days, outdoor activity suitability, or severe weather alerts) influence mindsets and decisions, powered by The Weather Company's data. "This collaboration integrates The Weather Company’s industry‑leading weather forecast data into DV360, the world’s largest buying platform, enabling real‑time relevance through curated deals. Experian contributes deep expertise in consumer audiences, The Weather Company delivers unmatched precision in timing and location, and Index Exchange adds efficiency and transparency – together creating a streamlined, turnkey solution for activation." Dave Olesnevich, VP of Data and Ad Product, The Weather Company Ready to activate? Search Audigent in DV360’s Marketplace, select the Audigent package that fits your KPIs, and add the deal ID to your line item. Prefer a custom build? Reach out to us at partnershipsales@experian to curate a package tailored to your campaign goals. The quickest path to performance is just one deal ID away. Contact us now Latest posts

Brands want more from their media investments: better insights, more efficient reach, and clear proof of performance. Whether you’re starting with high-quality first-party data or need help reaching new audiences, Experian offers flexible solutions to drive reach among key audiences and to measure the impact. We’ve built two primary activation and measurement solutions tailored to how brands operate, so you can spend less time managing data and more time driving outcomes. Use case 1: First-party insights to activation and measurement Best for: Brands with first-party data looking to deepen their understanding of existing customers, activate intelligently, and measure what matters – all through a single trusted partner. Solution: Audience Engine + Outcomes Audience Engine Audience Engine is our self-service platform designed to help you onboard first-party data, gain key insights into your customers, build custom audiences using our powerful data assets, and activate them across 200+ platforms — all within a single workflow. Outcomes Experian Outcomes closes the loop by measuring real-world results of your campaigns (such as visits, purchases, and website actions) and tying them back to specific media exposures across digital and TV channels. Together, these tools offer a full-funnel audience and measurement solution, from planning and activation to proving performance. Let’s bring this to life A leading athletic retailer partnered with Experian and Yieldmo to drive in-store foot traffic, targeting shoppers likely to buy from their competitors during key sales windows. Using Experian’s Audience Engine, which includes our proprietary and third-party data marketplace, Yieldmo built a high-performing, self-serve targeting strategy for the retailer. By combining Experian Audiences with Partner Audiences from Alliant, Circana, Webbula, and Sports Innovation Lab, Yieldmo was able to build apparel and footwear audiences from the data marketplace including: In-store shopper segments Athleisure purchasers Competitive purchasers Audience Engine also enabled Yieldmo to tap into Experian’s identity graph, expanding cross-channel reach and maximizing campaign scale and precision. And while not used for this campaign, our Outcomes solution allows advertisers to tie media spend to in-store activity, so retailers can measure true business impact. Benefits Understand your customers more deeply To reveal behavioral, demographic, and lifestyle trends. Reach your first-party audiences at scale Across top activation platforms, using Audience Engine’s onboarding capabilities. Increase your brand awareness By reaching prospective audiences, using Experian Audiences, Partner Audiences, and lookalike audiences. Measure campaign effectiveness With Outcomes, which correlates media exposures (digital and/or TV) with offline and online conversions, visits, or sales. Optimize future media buys By using attribution insights to refine targeting, creative, and channel mix based on what’s actually driving results. Use case 2: Activation and measurement Best for: Brands that already know who they want to reach and are looking to activate high-quality, data-driven audiences across their preferred media platforms and want to clearly understand what’s driving performance. Solution: Audiences + Partner Audiences + Outcomes Audiences Experian Audiences are pre-built audience segments grouped by shared attributes from Experian Marketing Data built for activation on-the-shelf of top programmatic, TV, and social destinations like FreeWheel, Magnite, and Madhive, in addition to Audience Engine. Partner Audiences Experian's Partner Audiences are high-quality audience segments sourced directly from 30+ leading third-party data providers like Affinity, Circana, and Dun & Bradstreet. These segments are curated across verticals like Business, CPG, Health, Retail, and Travel, and are available through on top media destinations, in addition to our data marketplace for easy selection and deployment. Outcomes Experian Outcomes helps close the loop by tying real-world results back to media exposures across digital and TV channels. Together, these products empower marketers to activate smarter and prove success with confidence. Let's bring this to life A leading fashion brand set out to grow their customer base by reaching high-intent shoppers where they spend their time: online. Their goal: drive e-commerce conversions through a programmatic campaign powered by The Trade Desk. To do it, they needed more than just reach, they needed accuracy. That’s where Experian came in. On The Trade Desk, the brand quickly discovered Experian’s prebuilt audience segments, readily available and easy to activate. They selected: Age Range: 25–44 Women’s Fashion Frequent Spenders: Households identified as frequent purchasers of women’s apparel, cosmetics, jewelry, and accessories—based on verified, consumer-reported transactions from the past 24 months. These segments gave the brand confidence that it was putting its message in front of the right consumers, those most likely to engage and buy. To understand whether their campaign was driving results beyond impressions, the brand implemented a site pixel to capture both top-of-funnel visitation and bottom-of-funnel conversions. Using Experian’s Outcomes solution, they were able to close the loop—tying ad exposure directly to e-commerce sales. The Outcomes report showed clear campaign lift, highlighting which channels and audience segments performed best. Armed with these insights, the brand refined their targeting and messaging for future media buys—boosting ROI with each iteration. Benefits Reach your ideal audience at scale By activating Experian Audiences and Partner Audiences off the shelf at digital and TV platforms. Access privacy-conscious, diverse data Curated by 30+trusted data providers in verticals like Business, CPG, Health, Retail, and Travel without needing to manage multiple data contracts. Understand what’s working Through Outcomes reporting, which connects media exposure to offline and online outcomes like conversions, purchases, or visits. Continuously improve performance By using attribution insights to inform audience selection, creative strategy, and media channel mix for future campaigns. Bring this to your brand Experian’s activation and measurement solutions for brands gives you the tools to act with clarity: from onboarding your first-party data to reaching new customers and tying media back to real results. Whether you’re starting with deep customer insights or building campaigns from scratch, here’s how our solution helps: Audience Engine Onboard your first-party data, gain insights into audience composition, build custom audiences using Experian and Partner Audiences, and activate them across 200+ leading platforms — all through a centralized, self-service platform. Audiences and Partner Audiences Reach high-intent prospects using Experian’s syndicated audiences or custom-built segments from partners like Circana, Dun & Bradstreet, and more. Outcomes Understand what worked. See how media exposure correlates with actions like store visits, quote requests, site activity, or purchases. Every element is built to help you scale campaigns, improve addressability, and tie media spend to results that matter—without the overhead of multiple vendors or disjointed systems. Ready to see it in action? Get in touch with our team. Latest posts