
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

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

Combined technology gives marketers an enhanced view of the customer for improved planning, targeting and optimization NEW YORK, July 12, 2016/PR Newswire/ - Tapad, the leader in cross-device marketing technology and now a part of Experian, today announced a partnership with Conversion Logic, the martech industry's most accurate unified marketing attribution provider. Conversion Logic will incorporate unified cross-screen data from Tapad's Device Graph™ to identify related devices and media exposures to enhance reporting on the path to conversion. By connecting Conversion Logic's proprietary Ensemble Method, which combines numerous state-of-the-art machine learning algorithms, tuned for each customer use-case for the most accurate results, with Tapad's unified, cross-device technology, marketers will benefit from a highly scientific approach to assessing advertising effectiveness with full, comprehensive customer insights. Linking these technologies will increase marketers' real-time ability to optimize brands' marketing channel spend and creative at a more granular level. During the past six months, Tapad has rapidly grown its data business, doubling the number of companies integrating the Device Graph™ into their platforms and growing the annualized revenue run rate by 210%. Tapad's highly scalable, cross-device data has been confirmed by Nielsen to be very precise. Tapad augments platforms' and publishers' tech stacks with additional scale and relevancy, granting advertisers amplified targeting and analysis options. The growth of the Device GraphTM has allowed Tapad to provide a growing network that benefits all partners with more efficient, effective consumer engagement. "Combining highly accurate data from Tapad with our own user ID technology and understanding how devices may be related at an individual level provides additional visibility into the path to conversion," said Alison Lohse, COO and co-founder of Conversion Logic. "The more we know about the customer journey, the more effective, efficient and customized marketers can be with marketing efforts. With Tapad, we have achieved a unified customer view that helps us piece together the purchase journey while preserving proven accuracy." "Conversion Logic's Ensemble Method delivers singularly customized and precise results that are not just accurate, but actionable," said Dave Fall, COO of Tapad. "The combination of powerful technology and a user-friendly interface, plus Tapad's ability to only consider relevant and scalable components in the marketplace, creates a more concentrated and beneficial environment for both its partners and clients." 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