At A Glance
As CTV viewership grows, marketers face challenges in targeting and measurement across fragmented platforms. Identity resolution and audience strategies, supported by Experian’s syndicated audiences and privacy-safe solutions, help DSPs and advertisers reach high-value audiences, improve campaign accuracy, and drive measurable outcomes.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 George Castrissiades, General Manager of Connected TV at AdRoll.
Premium reach and fragmentation
As viewer attention fragments across platforms, how should marketers redefine “premium reach” in CTV to prioritize engagement and audience quality over scale alone?

A few years ago, ad supported streaming over-indexed on younger adults, those without much financial history and much more budget conscious. It would have been fair for B2B brands to assume that maybe they weren’t going to find their C-Suite audiences on those channels, and so connected TV(CTV) was positioned as a top of funnel tactic aimed at retail. But that’s all changed – ad-free prices are going up, and ad supported tiers are the norm across the majority of channels. 66% of adults have at least one ad supported streaming channel, and adults today spend nearly as much time streaming movies and TV as they spend on their mobile phones. Now that ad viewing audiences on CTV really span the full spectrum of demo, techno, and firmographic segments, savvy marketers should partner with platforms that offer breadth and depth of targeting and measurement to find the highest value audiences wherever they’re watching CTV and serve them highly relevant ads that draw their attention towards the screen. I know I’m jumping out of my seat whenever I see an AdTech or MarTech ad.
Identity and relevance
What does a strong identity framework unlock for delivering household- and person-level relevance across screens, and how does it reshape audience planning?

In privacy-safe ecosystems, people want to share less data and log in to websites and browsers less frequently. If you can’t resolve a household ID to a CTV device through Safari and other sources of obfuscated identity, you’re going to end up losing a lot of signal along the way. On top of that, targeting smaller, higher-value audiences means this attrition can have a profound impact on your ability to build meaningful reach and use audience forecasts to predict scale. A strong identity framework is the key to maintaining as much of your planned audience as possible and staying true to initial forecasts.
AI and outcome planning
How is AI evolving CTV from tactical bidding to strategic outcome planning, and what mechanisms are in place to validate true performance lift?

Tomorrow isn’t guaranteed, especially not in advertising. Audiences change where and when they consume media, and so shifting budget to a placement that did well yesterday is like buying a stock when it’s outperforming – the gains might be gone by then! Predictive AI is bridging the gap to find the highest value and most engaged audiences in real time, versus being purely reactive. This helps drive outcomes which we see in the form of pipeline influence, ROAS, and site traffic lift – without exponentially increasing costs. The same is true for account-based marketing(ABM) outcomes – there’s a blend of signals, account “fit” and intent data that needs to be evaluated in a deeper, more intelligent way. AI is helping to find those highest value accounts, even before they’re in market, which means smart marketers aren’t showing up late to the party.
Measurement and incrementality
What privacy-safe, closed-loop measurement frameworks should become standard to prove incremental visits and sales from CTV campaigns?

Working with a dedicated multichannel, full-funnel ad and marketing platform like AdRoll can easily let you know when a user arrives at your site and makes a purchase, but understanding how that customer arrived there and which tactics deserve the credit requires a deeper, more sophisticated workflow. Our partnership with Experian allows all devices in a household to ladder back up to a household ID, so we can ensure accuracy without pivoting on anything personally identifiable. This works perfectly in CTV, an environment that follows an app workflow of user resettable device IDs rather than IP address or email but always connects seamlessly to web tokens including cookies. Accuracy, scale, and privacy are maintained in a proven way – you see this tech underpinning the infrastructure of streaming across all the biggest players, so marketers can rest easy.
Creative and commerce
How can creative sequencing and shoppable TV experiences convert living-room attention into commerce without compromising user experience or feeling intrusive?

I like to say that CTV trades attention for action. Users lean back and focus on the messaging and visuals of the big screen rather than scrambling for the mouse or tapping to close some intrusive pop-up. This focus means that the messaging is absorbed more quickly, but creatives can wear out their welcome just as fast. Sequential messaging really helps to move the messaging along without subjecting the viewer to longer ads where attention wanes, but also increases brand recall and specific product information because the story evolves with each impression. This is a great tactic to use when you want a viewer to take a specific action later – but shoppable ads can help motivate a user to act now, and new formats can really simplify things. Shoppable can feel out of range for most – the top players in this space own major e-comm storefronts and then tie them back into their own demand-side platforms (DSPs), content, and streaming devices. For the rest of us, dipping our toes in slowly through simple and cheap solutions like QR codes can connect audiences right to a web experience from their TVs, or intermediate solutions like interactive video ads. Users love to play around with fun on-screen experiences, and there’s a whole spectrum of crawl/walk/run options available.
Trust and governance
Which shared guardrails—brand safety, fraud control, and frequency management- are essential to unlocking sustainable, scaled investment in CTV?

I’ve always thought of CTV inventory analogously to high-end watches – if you buy from the source or a well-known, reputable dealer, you’re probably buying the real thing. But that fancy timepiece the guy was selling outside the bar, that you swore looked real? Probably not. Untrusted resellers and too-good-to-be-true pricing might mean you’re running ads on a screen at a lonely gas station at 3 am to an audience of no one, and that’s not even the worst case scenario. Good relationships and deep pockets can solve brand safety and fraud issues, but not every advertiser is going to have those resources. Brand safety and fraud prevention can reduce workload and help distinguish the good stuff from the growing pool of gray area, arguably, CTV inventory that isn’t what was promised to a customer. Outsourcing this trust also goes a long way, with buyers knowing you’re not grading your own homework. Frequency management is equally as important. Once you have your audience and your good supply, it’s important not to abuse a single household just because they meet your targeting criteria. Reach is your best friend with CTV.
Data and audience strategy
How do Experian’s syndicated audiences provide a consistent, scalable foundation for planning, activation, and measurement across CTV and digital, and what outcomes are clients seeing?

We love to talk about how Experian’s data is such an integral part of so much of streaming’s architecture, and the fact that it’s built on deterministic datasets means you’re getting scaled audiences built on knowledge rather than best guesses. That means a lot when working across multiple channels, privacy-safe environments, and households with an ever-growing number of connected devices. Our customers are always delighted at how precise targeting can be, especially in the B2B/B2C space – and knowing the size of those audiences helps them to understand how budget transforms into reach in a more predictable way. It’s confidence-inspiring to point to a new audience and tell your client that these are their future customers. The best part is showing them the outcomes reporting – we consistently see a massive spike in site traffic and engagement on days when a new Experian syndicated audience is launched!
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FAQs
Identity resolution ensures marketers can connect devices and maintain audience accuracy. Experian’s identity solutions help reduce data loss and improve audience forecasts, making campaigns more effective.
With viewer attention spread across platforms, marketers need tools that offer both broad and detailed targeting. Experian’s syndicated audiences provide reliable, scalable data to help identify and reach high-value audiences across channels.
Techniques like sequential messaging and shoppable ads keep viewers engaged and encourage action. Simple tools like QR codes or interactive video ads can connect audiences to web experiences directly from their TVs.
Strong identity frameworks help DSPs maintain accurate targeting and audience reach, even in privacy-focused environments. By connecting devices to household IDs, solutions like Experian’s Digital Graph ensure DSPs can deliver relevant ads and measure performance effectively across channels.
About our expert

George Castrissiades, General Manager of Connected TV, AdRoll
George leads the CTV go-to-market strategy at NextRoll, driving rapid growth and adoption of the channel for both B2B and B2C customers. With a track record of building and scaling CTV solutions, he is focused on developing a strategic playbook that accelerates success in the evolving digital advertising landscape.
Before joining NextRoll, George spearheaded CTV product innovation at iSpot.tv and held leadership roles in product and operations at YouTube, VICE Media, Crackle, Roku, and Innovid. His expertise spans product development, monetization, and market expansion.

About AdRoll
AdRoll is a connected advertising platform built for growth-minded marketers. With powerful AI, flexible campaign tools, and seamless integrations, AdRoll helps mid-sized businesses turn complexity into clarity and clicks into customers. The AdRoll platform delivers full-funnel performance through multi-channel advertising, audience insights, and cross-channel attribution, supporting marketers across industries including ecommerce, technology, financial services, education, and more. For B2B teams, AdRoll ABM extends these capabilities with account-based precision, multi-touch campaigns, and real-time buyer intelligence. Backed by nearly 20 years of data and award-winning support, AdRoll enables marketing teams to advertise smarter, move faster, and achieve more, all from one place.
Latest posts

NEW YORK, June 1, 2016 /PRNewswire/ — Are Traasdahl, CEO and founder of Tapad, the leader in cross-device marketing technology and now a part of Experian, has been named Founder of the Year by the Nordic Startup Awards. The Nordic Startup Awards' Founder of the Year Award recognizes an individual that has shown exceptional achievements in fundraising, customer growth, financial savvy, and/or leadership throughout the past year. The Nordic Startup Awards evaluates hundreds of players in the startup ecosystem, ranging from investors and founders, to developers and journalists in Denmark, Sweden, Iceland, Norway and Finland. Taking place in two stages, each country selects its nominees for consideration for the regional awards which were held in Iceland on May 31, 2016. Traasdahl is recognized for his continuous investment in Tapad as a whole, as well as his dedication to growing and developing Tapad since founding the company in 2010. He has led Tapad from startup through a steady period of growth resulting in an acquisition by the Telenor Group for $360 million in February 2016. "I am truly honored to be named Founder of the Year by the Nordic Startup Awards, among so many other remarkable leaders in the space," said Traasdahl. "That said, this has always been a team effort. We started Tapad with the goal of giving employees unprecedented growth opportunities while developing breakthrough solutions for our clients. This is a win for everyone at Tapad who has committed themselves to these principles over the past four-and-a-half years." Tapad is reinforcing its commitment to fostering entrepreneurship with the launch of their new Propeller Program. Through Propeller, Tapad will host five early-stage companies at Tapad's New York headquarters for a year to set them up for global expansion. In its inaugural year, the first participants will come from Traasdahl's native Norway. For more information on the Nordic Startup Awards, please visit: http://www.nordicstartupawards.com. Contact us today

NEW YORK, May 4, 2016 /PRNewswire/ – Tapad, the leader in cross-device marketing technology and now a part of Experian, has been honored with two iMedia ASPY Awards. Announced on May 3rd at the iMedia Summit in Lost Pines, TX, Tapad's 2016 ASPY Awards include "Best Customer Service" and "Best Mobile Partner." In 2015, Tapad's proprietary technology, Tapad Device Graph™, was named "Best New Media Innovation" and Tapad employee Chris Martin was awarded the "Rising Star Award." The iMedia ASPY Awards – determined exclusively by agency votes – recognize the industry's top marketing technology, media companies and publishers for outstanding service to agencies. The award for "Best Customer Service" recognizes Tapad's client services team and their dedication to helping agencies fully understand their consumers' behavior and achieve the best cross-screen campaign ROI through Tapad's Campaign Pulse and TV Pulse analytics reporting. The "Best Mobile Partner" win recognizes the abilities of the Tapad Device Graph™ to deliver unified cross-screen solutions for the company's partners. "We are privileged to have a talented and dynamic group of people on our client services team, and we are honored to be recognized by iMedia Connection and our agency partners," said Tapad Founder and CEO, Are Traasdahl. "We have always strived to provide the best solutions and the best customer support, so it's extremely gratifying to be rewarded for our efforts. If our clients and partners are happy, we are happy." For more information on the iMedia ASPY Awards please visit: http://aspyawards.com. Read the full press release here. Contact us today

Cross-screen marketing tech firm, Tapad, drove unified campaign; partnered with Statiq to measure cross-screen impact on in-store visits LONDON, March 8, 2016 /PRNewswire/ – Carat North completed the UK's most comprehensive digital campaign with Tapad, the leader in cross-device marketing technology and now a part of Experian. Coupled with location-based audience data from Statiq, this marks the first time a UK-company has measured the impact of unified, cross-screen campaign on in-store visits. Carat North served display and video ads to grocery shoppers for the leading retailer ASDA from August through October. During the campaign, Tapad utilized Statiq's audience data to measure which users visited a store after being exposed* to the campaign's ad on multiple devices. The digital campaign demonstrated a lift of 59% for in-store visits when users were exposed to ads on three devices over people who were shown an ad only on onescreen. Those who engaged with the ad were also 411% more likely to visit an ASDA store. Of those who were exposed to an ad, 248% were more likely to visit a store. Impressions served to mobile devices saw the highest success rate with an in-store visit lift of 67%. The campaign leveraged Tapad's proprietary technology, The Device Graph™, which Nielsen confirmed Tapad's cross device accuracy to be 91.2%, to serve ads sequentially on connected devices belonging to the same user. CARAT NORTH: "The ability to know which devices belong to our customer, coupled with the ability to deliver the right ad, and right message, wherever they are and on whatever device they're using, has been something this industry has long needed," said Steve Thornton, Digital Account Manager, Carat North. "We're impressed with the results that have come from the work with Tapad and Statiq for this media-first, and look forward to continuing to offer these solutions to clients like ASDA. Matching unified cross-device capabilities with real insights on campaign performance is an invaluable advantage in the marketing world." TAPAD: "This campaign is a perfect example of the capabilities of cross-device advertising," said Are Traasdahl, Founder and CEO, Tapad. "In addition to reaching users across devices, we're able to analyze campaign results and determine how different combinations of ad exposure, creative type or view frequency affected their decision to visit a location." STATIQ: "As a location data specialist, Tapad is our ideal partner – they are an industry leader and by working with them we are able to determine the impact unified messaging has on real world consumer behaviours," said Dean Cussell, Co-Founder of Statiq. "We believe this type of analysis will significantly aid brands in optimising future ad spend." About Carat North Carat North is a leading independent media planning & buying specialist in digital and non-traditional media solutions. Owned by global media group Dentsu Aegis Network, the Carat network is more than 6,700 people in 130 countries worldwide across 170 cities. Carat defined the sector when established as the world's first media independent in 1968 and is now Europe's largest media network, a position held for more than 15 years. For more information visit www.carat.co.uk About Tapad Tapad Inc. is a marketing technology firm renowned for its breakthrough, unified, cross-device solutions. With 91.2% data accuracy confirmed by Nielsen, the company offers the largest in-market opportunity for marketers and technologies to address the ever-evolving reality of media consumption on smartphones, tablets, home computers and smart TVs. Deployed by agency trading desks, publishers and numerous Fortune 500 brands, Tapad provides an accurate, unified approach to connecting with consumers across screens. In 2015, Tapad began aggressively licensing its identity management solution, the Tapad Device Graph™, and swiftly became the established gold-standard throughout the ad tech ecosystem. Tapad is based in New York and has offices in Atlanta, Boston, Chicago, Dallas, Detroit,Frankfurt, London, Los Angeles, Miami, Minneapolis, San Francisco and Toronto. TechCrunch called the powerhouse Tapad team "a hell of a list of entrepreneurs who created some of the most valuable online advertising companies of the last decade." Among Tapad's numerous awards: EY Entrepreneur of The Year (East Coast) 2014, among Forbes' Most Promising Companies two year's running, Deloitte's Technology Fast 500, Crain's Fast 50, Entrepreneur 360, Digiday Signal Award, iMedia ASPY Award, and a MarCom Gold Award. Read the full release here. *Tapad utilized Statiq's audience data to measure which users visited a store during, or within one month of, being exposed to the campaign's ad on multiple devices. Contact us today