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.
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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.
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Buyers can now put Experian’s audience and contextual intelligence to work in Google Ad Manager Curation in two ways: through off-the-shelf solutions available directly in Google Ad Manager, or through Custom Curation packages that Experian builds using Google Ad Manager’s inventory supply. Together, these options bring Experian’s consumer data foundation closer to the Google supply agencies already buy, with the flexibility to choose between a ready-to-use solution and an Experian package tailored to specific campaign goals. Why targeting at the source matters Many audience strategies still apply targeting on the buy side, which means signals pass through multiple systems before an impression is evaluated. Each step can shrink the pool of requests where the audience is still recognizable, so a carefully built strategy can reach the auction at a fraction of the scale it started with. Google Ad Manager Curation moves segment evaluation closer to the ad request. When a request matches the selected Experian segment, Ad Manager sends the bid request with the associated Deal ID to the buyer’s DSP. This more direct path can support stronger match and deal-transaction rates, more accurate forecasting, and better access to the audience defined in the strategy. As AI shapes more media decisions, the quality and provenance of the data feeding those systems matter more. Evaluating audience or contextual criteria closer to the source helps preserve the connection between the strategy and the impression being considered. Two ways to get started The right entry point depends on how much customization the campaign requires. Buyers can access Experian solutions off-the-shelf directly in Google Ad Manager or work with Experian to build a Custom Curation package using Google Ad Manager inventory supply. Start off-the-shelf For buyers who want direct, self-service access to Experian audience and contextual solutions. Experian solutions are available off-the-shelf in Google Ad Manager, giving buyers a straightforward way to select the data or contextual strategy that fits their campaign and create packages through Google Ad Manager’s Curation capabilities. Experian Audiences Experian Audiences draw on a deterministic offline identity foundation that represents more than 250 million U.S. consumers and 126 million U.S. households. Buyers can choose from Experian’s Audiences spanning demographics, lifestyle, financial signals, media habits, and household characteristics. That depth adds real-world consumer context beyond digital behavior alone. Contextual Experian contextual solutions give buyers a way to reach relevant environments without relying on identity. Buyers can select contextual audiences aligned to specific interests, categories, and content to inform where media appears. Experian also offers Predictive Indexed, which uses Experian audiences to predict the contextual categories and pages to target based on the likelihood that consumers visiting those environments fall within the selected audience. This gives buyers an audience-informed way to approach contextual activation without requiring identity at the point of activation. Build a Custom Curation package For buyers who need a strategy tailored to specific audience, contextual, and inventory requirements. Experian can build Custom Curation packages using Google Ad Manager’s inventory supply based on the targeting criteria that matter for a campaign. Where off-the-shelf solutions draw on Experian data, custom packages can also incorporate partner audiences and a brand’s own first-party audiences. Packages can combine Experian audiences, partner audiences, a brand’s own first-party audiences, contextual signals, and inventory or site criteria. Experian applies those criteria against Google Ad Manager inventory supply and brings the data, targeting, and inventory together into a single curated deal. This gives buyers a way to combine audience and supply decisions rather than managing each component separately. The approach can be tailored to the campaign. A buyer might start with a defined audience and add contextual or inventory criteria, bring a brand’s established first-party audience into the strategy, or build around specific supply and audience-quality requirements. Choose the path that fits the campaign Both paths do the same underlying thing: they move the audience or contextual decision closer to the ad request, before signal loss builds across the path. Whether a campaign calls for something ready to use or a package built to spec, the result is a more direct line from strategy to impression. Ready to get started? Explore Experian solutions available off-the-shelf in Google Ad Manager or contact your Experian representative to request a Custom Curation package. Latest posts