
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

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