
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 Brian Chisholm, SVP of Strategic Partnerships at OpenX.
About OpenX
OpenX is an independent omni-channel supply-side platform (SSP) and a global leader in supply-side curation, transparency, and sustainability. Through its 100% cloud-based tech stack, OpenX powers advertising across CTV, app, mobile web, and desktop, enabling publishers to deliver marketers with improved performance and dynamic future-proofed solutions. With a 17-year track record of programmatic innovation, OpenX is a direct and trusted partner of the world’s largest publishers, working with more than 130,000 premium publisher domains and over 100,000 advertisers. As the market leader in sustainability, OpenX was the first AdTech company to be certified as CarbonNeutral™ and third-party verified for achieving its SBTi Net-Zero targets. Learn more at www.openx.com.
Collaboration solves programmatic challenges
Could you share the story behind the partnership between OpenX and Experian and how this collaboration differs from typical data-provider/DSP or SSP relationships in the market? What unique challenges in programmatic advertising does this partnership solve?
OpenX first partnered with Experian in 2019 when we were building the industry’s first data-driven supply-side curation platform. Being the only SSP with a proprietary people-based identity graph (further enriched by Experian) gives OpenX a unique set of capabilities that are only growing in value in the market. We are seeing retail media networks, large agency planning platforms, and indie and specialty shops lean into OpenX’s tools to match, activate, and measure people-based audiences through our robust curation platform and premium supply.
Enhancing campaigns with data enrichment
How does combining Experian’s marketing data with OpenX’s technology create tangible benefits for advertisers, agencies, and publishers?
Last year, we expanded our partnership with Experian to enrich our digital IDs with Experian’s Digital Audiences, essentially making Experian data available directly to marketers across all OpenX supply and formats, including CTV. For marketers, this direct integration increases both match and activation rates. Meaning, not only do we match more of the starting audience universe to our system, we then provide more opportunities to identify and transact on those users in the bidstream. The result is greater reach for buyers even in previously unaddressable environments like Safari or mobile web – and publishers benefit from the increased addressability OpenX provides their supply.
Delivering impactful inventory solutions
OpenX has been enhancing its curation offerings beyond just providing curated marketplaces. Could you describe the strategic shift you’re making in how you package and deliver inventory?
At OpenX, we have a broader and more dynamic view of curation. It’s not just about gathering data or bundling inventory; it’s about layering on identity-based precision, enabling the targeting of the right audiences with premium, brand-safe inventory for our clients.
We saw the value of curating inventory and audiences on the supply side early on. We started by building capabilities for our own exchange and then found that our approach created tremendous value for data owners and marketers alike. Over the past five years, we’ve been continuously investing our curation platform capabilities to super serve those partners. As a result, we have what we think is by far the most robust and flexible platform in the market. We can match and integrate with any kind of data, curate supply at a granular level, activate audiences and help measure outcomes in multiple ways. We also provide turnkey integrations to third-party platforms.
Balancing customization with scalability in deals
There’s often tension between customization and scalability when it comes to curated deals. How does OpenX strike the right balance to meet varied advertiser objectives while ensuring operational efficiency for publishers?
Truthfully, we’re not finding that scale suffers with curation. We currently have 237 million monthly active users in our exchange that we can match and activate curated deals against. That’s a unique claim for an SSP, and we back it up with our identity graph. This directly benefits our publishers who see a 20% increase in overall bid density and a 118%+ increase in win rate for curated deals vs. open market.
Data-driven curation done on the supply side offers efficiency and drives results for buyers, while publishers are able to activate their own first-party data programmatically, increase their monetization, and maximize the value of their inventory. As the industry continues to adapt to a privacy-first, consent-based ecosystem, data-driven curation will play a key part in ensuring both sides of the marketplace continue to thrive.
Driving results with CTV curation
Connected TV is arguably the most dynamic channel in programmatic right now. How do curation improvements accelerate more precise or outcome-based targeting in CTV environments?
I want to take this a step further and say that biddable is the future of CTV. Not only does biddable enable advertisers to purchase closer to campaign activation, it gives buyers the option to curate deals, flexibility, addressability and ease of transacting at will. No minimums, no commitments.
Our CTV strategy has been centered around combining flexibility, efficiency, and real-time optimization capabilities with access to premium, direct, glass-on-wall inventory. TV by OpenX, powers the direct activation of curated audiences at scale through data-driven, contextual, attention, and sustainability offerings.
What does this mean for buyers? Advertisers can choose from any one of OpenX’s 250+ data partners, including Experian, to target an audience via CTV inventory using OpenX’s cross-platform identity graph. This setup allows buyers to increase scale and optimize toward their desired campaign outcomes via their preferred DSP. The focus on inventory quality and scale combined with advanced targeting curation provides a key driver of performance in CTV.
Identity resolution for better CTV measurement
In a channel as fragmented as CTV, measuring performance can be complex. What role does identity resolution play in better measurement and attribution? How do Experian’s identity capabilities integrate within your platform to drive measurable outcomes?
We talked about the value of audience targeting via curation above. Another critical driver is our ability to power true closed-loop measurement for advertisers or partners like retail media networks. OpenX is able to provide automated log-level reporting via BIDS, which includes exposed IDs from our proprietary ID graph back to our partners in near real time.
This closed-loop attribution enables partners to measure real-world outcomes like ROAS, conversion rates and incrementality. Insights and learnings from data can then be used to make optimizations mid-campaign, to further improve performance. Measurement starts with having a strong foundation to identity resolution – which Experian helps us achieve.
Tailoring audience strategies in the auto sector
The automotive vertical demands highly specific audience insights—everything from in-market signals to lifestyle and aftermarket service and parts data. How does the Experian–OpenX partnership enhance audience strategies in auto?
Experian’s deterministic data, combined with the OpenX identity graph, empowers buyers with identity tools to create targeted audience segments of likely auto intenders. For verticals that have high customer acquisition costs like auto, these insights are particularly valuable, as buyers often struggle to identify their audiences at scale in environments that drive campaign performance.
Experian’s automotive data is one of our most requested audiences from buyers. We match Experian’s high-quality data directly to our platform, often leveraging Experian’s IDs, which leads to greater scale and fidelity. In addition, our platform can curate supply to a granular level to drive results for buyers.
Complying with evolving privacy regulations
With data privacy regulations multiplying—like GDPR, CCPA, and others—how does OpenX’s direct connection with Experian ensure responsible data usage and compliance?
At OpenX, we don’t see privacy regulations as a challenge but rather an opportunity. Instead, it’s a key differentiator for us. We’ve had a strong focus on data and identity since 2017, and we believe that if you’re talking about these topics but not talking about privacy, you’re missing an important piece of the equation.
Regardless of the environment — CTV, mobile, app, or web — in today’s privacy-focused world, success in data and identity is inseparable from a commitment to privacy. We support this obligation with dedicated leadership that helps our partners navigate evolving global regulations, including critical areas like child-directed content under new laws from Australia to Maryland.
Thanks for the interview. Any recommendations for our readers if they want to learn more?
To learn more about our solutions and partnership opportunities, visit the OpenX website or contact your Experian account representative to schedule your free match test.
Contact us
About our expert

Brian Chisholm, Senior Vice President of Strategic Partnerships, OpenX
Brian Chisholm is the Senior Vice President of Strategic Partnerships at OpenX, where he spearheads the curation, data, and identity efforts. He and his team have been instrumental in building out OpenX’s industry-leading curation platform and partnerships.
With more than two decades of experience in digital media, Brian has developed partnerships that leverage and expand OpenX’s core technology assets and deliver material value for the company’s buyer, publisher, and platform partners. Before joining OpenX, Brian held senior roles at innovative startups and digital stalwarts, including Overture/Yahoo, SpotRunner, and Apptera.
Latest posts

What generation already has 68 million consumers, is set to be the largest generation ever, and $360 billion of disposable income? While you may think these attributes describe millennials, they are actually a portrait of Generation Z, better known as Gen Z, the newest generation that is emerging in the marketplace. Gen Z is beginning to make an impact worthy of focusing your next auto marketing campaign around. Gen Z and the automotive market Made up of consumers born after 1996, Gen Z is ready to be noticed and become a force to be reckoned with in the market. In the automotive market alone, Gen Z made up 3.8 percent of all new vehicle registrations in the first quarter of 2019. While that number may seem small, consider the fact that in 2015—just four years ago—they only made up 0.5 percent of new vehicle registrations. These are statistics that should make automotive marketers pay attention. Digital consumption of Gen Z Most marketers tend to lump Gen Z with millennials – after all, they grew up with smartphones and social media, so how different can they be than the generation that came of age with the Internet? However, unlike millennials, Gen Z is considered a true “digital generation” – performing many of life’s day-to-day activities online. This means that they do a lot of research when shopping for a product. In fact, according to the Center for Generational Kinetics, 52 percent of Gen Z has looked at online reviews for a product while shopping in-store. But how do digitally native consumers impact automotive marketers? In order to sell cars, marketers’ messages need to be relevant. Like many other generations, Gen Z interacts with brands across a number of different devices and touchpoints. They’re constantly bombarded with messages and advertisements, so much so that it becomes information overload. Auto marketing to Gen Z To create consistent messages that resonate, brands need to communicate across these different touchpoints and tell a story that is relevant to your audience. For example, you wouldn’t show an advertisement of someone buying their dream sports car to a member of Gen Z. Most of these consumers are buying their first car, so it would typically make more sense to show them ads for economical, reliable, sedans or cross-over SUVs. Historically, automotive marketers have relied exclusively on CRM data, but this strategy isn’t effective when it comes to Gen Z, the fact of the matter is that they probably haven’t purchased a car from you previously. Identity resolution and Gen Z auto marketing The recipe for marketing success with Gen Z is identity resolution – combining your first-party identity signals across channels with third-party resources, as well as advanced technology, such as machine learning and artificial intelligence, to truly create and deliver campaigns that are relevant to the youngest generation. The more knowledge marketers have on your audience, such as demographics, life events and purchase behavior, enables them to tailor the messages to the audience in a way that will cut through the noise and resonate. As more members of Gen Z come into the marketplace, automotive marketers will want to ensure they’re meeting them where they are, delivering messages that matter to them. This will help marketers not only sell more cars, but also begin to create relationships that could last for years to come. Your identity resolution partner Experian is here to help you create an identity resolution strategy that will take your automotive marketing campaigns to the next level. We help brands put real people at the center of their business by resolving fragmented identity signals. Deliver personalized, relevant messages across channels to effectively target your ideal customers. Get started with identity resolution today! Contact us today

As summer fades, marketers are gearing up for another campaign cycle. It’s a process that repeats itself annually, but we can’t just copy-and-paste our plans. With each passing year, the media landscape changes drastically, as do the behaviors of the audiences we are trying to reach. As ever, marketers have to be strategic—and nimble—to reach the right customers at the right time, with messaging central to seasonal events and personal preferences. Marketers can ensure their messaging reaches the right customers with audience optimization. Reach target audiences this season It can be a hassle to create custom audience segments and bespoke creative messaging every time the seasons change, but now, more than ever, we must ensure brand campaigns are as timely, relevant and personalized as possible. In a world of multitasking and multiscreening, there’s an expectation among consumers that all communications they receive are relevant to them—especially from brands. This is why it’s critical to understand your audiences and how to engage them through the most effective channels. To help marketers win the battle for consumer attention—and sales—4C developed the Scope platform. This self-serve software arms brands with powerful tools for managing audiences and optimizing campaigns across channels including TV and digital. So, whether it’s building an efficient media plan, buying targeted ads, or measuring business outcomes, audience optimization is truly in scope. Deliver audience-based marketing messages across the TV and video space Recently, 4C teamed up with Experian to expand our audience marketplace across linear TV, OTT and social media. Brands using the Scope by 4C™ platform can leverage Experian data across a variety of planning and buying use cases, including audience-based linear TV planning and programmatic scatter buying; OTT campaigns across FreeWheel, Telaria, and SpotX; and social advertising on Facebook, Twitter, and Pinterest. Scope’s TV Planner allows marketers to combine historical cost and ad occurrence data with Experian audiences to create customized TV plans in minutes. The outputs go beyond GRPs to maximize in-target impressions for a secondary audience as well as indexing high against the primary demo. With audience-based TV planning brands can truly maximize their upfront buys and use the fantastic reach of linear television for seasonal performance marketing, not just brand awareness. OTT harnesses the big-screen, living-room impact of TV with the targeting precision and flexibility of digital. By using Experian segments to create OTT audiences in Scope, brands can really focus on creative strategy, using the immersive power of video to drive specific business outcomes. From a social perspective, we can combine the pinpoint targeting marketers have come to rely on from platforms like Facebook with advanced segmentation enabled by Experian. The output is high-performing audiences that can be reached at scale with dynamic creative to achieve unparalleled ROI. Focus marketing strategies on audience optimization this season Leveraging customized audiences across channels is the modern approach to marketing and has completely shifted the way marketers target consumers. With the relationship between 4C and Experian, there is now a better way for marketers to identify the most valuable potential customers, uncover the most appropriate messaging, and execute campaigns across the most engaging channels – during peak seasonal campaigns and every single day. Contact us today

With Tapad, part of Experian, technology, AdsWizz AudioMatic is the first Audio buying platform to offer cross-device identity resolution across the U.S. and EMEA NEW YORK and LONDON, July 17, 2019 /PRNewswire/ — Tapad, part of Experian and a global leader in digital identity resolution, today announced a new joint capability with AdsWizz , the leading technology provider for digital audio advertising solutions. The partnership combines Tapad's digital cross-device technology with AdsWizz's AudioMatic buying platform, enabling the ability to connect audio ad experiences across screens. AudioMatic, AdsWizz's audio-centric buying platform, supports programmatic audio buying and entirely new audio ad experiences for listeners. The integration of The Tapad Graph onto its platform enables new opportunities for marketers to reach, engage and measure each interaction with their desired consumers on digital radio and podcasts channels, and across devices. This partnership makes AdsWizz the first audio buying platform to offer this enhanced cross-device identity capability in the US and EMEA markets. "Marketers need privacy-safe digital identity resolution to reach their consumers," says Tom Rolph, VP of EMEA at Tapad. "With audio becoming an increasingly powerful medium for engagement, it's important that our technology extends to this channel, which is why we are excited to announce our integration with AdsWizz's AudioMatic platform." Digital audio is experiencing high growth, with 84% of advertisers and agencies saying it will play a bigger role in their media plans in the future. Today, 60% of digital audio is consumed via a mobile device.* The Tapad Graph is the largest digital identity resolution graph with differentiated global scale. The partnership enables audio advertisers to leverage The Tapad Graph for enhanced attribution, analytics, and targeting. Alexis van der Wyer, CEO at AdsWizz, added, "Digital audio is increasingly becoming ubiquitous in our media consumption and in our daily digital interactions, and because of that, audio advertising offers tremendous opportunity to personally interact with consumers in every moment of their daily lives. By integrating with Tapad, we enable our advertising partners to increase the effectiveness and the relevance of their marketing messages across audio channels." To learn more about Tapad and our digital identity resolution products, visit our identity solutions page. *Digital Audio Exchange, "The Rise of Digital Audio Advertising," https://thisisdax.com/wp-content/uploads/2019/07/DAX-Whitepaper.pdf About Tapad Tapad, Inc. is a global leader in digital identity resolution. The Tapad Graph, and its related solutions, provide a transparent, privacy-safe approach connecting brands to consumers through their devices globally. Our one-of-a-kind Graph Select offering enables marketers the flexibility and freedom of choice to correlate devices to varied objectives, driving campaign effectiveness and business results. Tapad is recognized across the industry for its product innovation, workplace culture and talent, and has earned numerous awards including One World Identity's 2019 Top 100 Influencers in Identity Award. Headquartered in New York, Tapad also has offices in Chicago, London, Oslo, Singapore and Tokyo. About AdsWizz: AdsWizz has created the end-to-end technology platform that is powering the digital audio advertising ecosystem. AdsWizz powers well-known music platforms, podcasts and broadcasting groups worldwide with a comprehensive digital audio software suite of solutions that connect audio publishers to the advertising community. From dynamic ad insertion to advanced programmatic platforms to innovative new audio formats, AdsWizz efficiently connects buyers and sellers in digital audio. AdsWizz is headquartered in San Mateo, California, with an IT Development hub in Bucharest, Romania, and presence in 39 markets around the world. About AudioMatic: AdsWizz Demand Side, audio-centric DSP and audio buying platform, AudioMatic, enables programmatic audio buying and entirely new audio ad experiences that are proven to be more engaging and more effective, and have delivered measurable results for agencies and their brands all over the world. All the biggest ad agencies have used our programmatic trading platform, including Omnicom, GroupM, Havas, Publicis, Mobext, and more. Contact us today