Tim Vanderhook
Analyst · Rosenblatt
Thanks, Nick, and thank you all for joining us today. We delivered strong first quarter performance, achieving new company Q1 records across all key metrics. Revenue increased 25% year-over-year, well above the high end of our quarterly guidance range and contribution ex-TAC increased 18% year-over-year, above the midpoint of our quarterly guidance range. Growth was broad-based across verticals, driven by strong CTV demand, increased utilization of our proprietary data and expanded use of the ViantAI product suite. Adjusted EBITDA increased 81% year-over-year to $9.8 million for the quarter and exceeded the high end of our guidance range. We are off to a strong start in 2026 and Viant's market position and opportunity for growth have continued to strengthen. We expect accelerating top line performance throughout the year, driven by a combination of new and existing catalysts. First, the ad environment remains healthy as evidenced by strengthening customer demand trends observed throughout the first quarter. March performance was particularly robust, signaling strong business confidence to kick off the year, and we continue to see healthy demand trends midway through the second quarter. Our new flagship customers, Molson Coors and WHOOP, among other major U.S. advertisers went live in the first quarter and are now scaling spend across our platform. On a related note, we are currently actively engaged with our largest sales pipeline in company history. Perhaps more than ever, we believe major U.S. advertisers and their agency partners are seeking a new buy-side partner, one that is independent and objective, free of conflicts of interest and can transparently deliver maximum return on ad spend. Viant is meeting this demand with a differentiated offering, equipped with proprietary data and evolving AI capabilities. Propelled by current market dynamics, we expect to win incremental ad spend from current customers and secure additional major advertiser wins throughout the year. Tenfold viewership events are also expected to drive ad spend to the CTV channel this year. The 2026 World Cup is hosted by providers within our direct access premium publisher program, and we anticipate strong contribution from political advertisers in the second half of the year, fueled by midterm elections and the ongoing shift of political budgets from linear TV to CTV. We expect to benefit from ramping adoption and increased utilization of IRIS ID, our industry-leading content identifier, which recently reached nearly 50% penetration across all biddable CTV inventory. with additional major streaming services set to become Iris-enabled later this year. Following our go-to-market launch in January, we are encouraged by early adoption of Outcomes, Viant's fully autonomous AI-powered solution. Within our existing client base, we are beginning to capture performance budgets previously allocated to search and social channels. Advertisers are redirecting search and social spend toward the highly effective CTV channel, where spend doesn't merely take credit for sales that would have happened regardless of a last second ad exposure. CTV actually drives net new customers. While early, we believe Outcomes is fully capable of servicing the 10 million advertisers electing to allocate spend across search and social channels. We expect outcomes to be a meaningful growth accelerator for Viant in the years to come. And finally, on May 1, we closed on our acquisition of TVision, a leading television measurement provider, uniquely capable of quantifying the true value of linear TV, connected TV and walled garden inventory through viewer attention-based insights. Together and for the first time, we will activate TVision's attention data within the bid stream on a prebid basis, enabling advertisers to optimize budgeting and bidding decisions to inventory designed to capture genuine human engagement. In a moment, Chris will elaborate on the state of the market with specific reference to the growing number of opportunities available to Viant attributable to our commitment to innovate on behalf of advertisers. Our commitment to remain an independent and objective partner as well as favorable market dynamics well documented amongst trade publications. But first, I will provide an update on our recent performance and progress across our 3 key strategic priorities: CTV, Viant's proprietary data and ViantAI. Within the CTV ecosystem, 2 major industry tailwinds are currently underway and remain in the very early stages. The continual migration of linear TV advertising dollars to CTV and the diversion of search and social performance budgets to CTV, as the most sophisticated buying platform in the marketplace for CTV ad spend deployment, Viant is exceptionally well positioned to capitalize on these tailwinds, both in the near term and for many years to come. Reflecting these dynamics, total CTV spend on our platform reached a new all-time high for a first quarter, accounting for over 50% of total ad spend. Contribution ex-TAC increased well over 40%, and this performance in Q1 2026 marks the third consecutive year that CTV contribution ex-TAC has increased over 40% on a year-over-year basis. a rate that is 3x that of the industry growth rate. This outsized adoption reflects Viant's strategic investments in critical CTV infrastructure, publisher relationships and addressability solutions, which collectively establish Viant as the platform of choice for CTV campaign deployment across the open Internet. Contributing to our outsized CTV growth is the continued expansion of our direct access premium publisher program, with new integration announcements coming in the next few weeks. Direct Access offers advertisers an efficient, targetable and measurable path to purchase CTV ad inventory. By facilitating transactions directly with publishers, we bypass midstream resellers, which reduces CPMs for advertisers and drives better return on ad spend for our clients. In the quarter, over 50% of CTV ad spend on our platform was transacted through direct access, which includes leading CTV streaming services, including Disney, Paramount, Peacock and many, many more. Viant's exclusive data has expanded and now consists of 3 primary pillars of exclusive proprietary insight into content, identity and now attention. Through our acquisition of Iris TV, our proprietary content signal continues to proliferate amongst publishers, enabling advertisers to deploy show level and contextual campaigns at greater scale. In just over a year since its acquisition, the presence of our content identifier, IRIS ID, within the CTV ecosystem has grown fivefold, reaching nearly 50% of incoming CTV bid requests in the first quarter. Viant's content identifier empowers advertisers to target CTV ad inventory at the show level, providing a substantially more detailed and granular targeting capability relative to our competitors who are limited to app-level targeting only. Iris uniquely enables advertisers to align their message with specific shows, contextual categories, emotional sentiments, tones and brand-suitable content, representing a degree of micro targeting that enhances return on ad spend and drives outcomes. This is made possible through direct integrations with publishers' own content management systems, providing Viant with a meaningfully higher resolution of content intelligence. With new major streaming services slated to become enabled later this year, Viant's content identifier penetration is expected to soon reach over 75% of biddable inventory. Viant's household ID, our patented identity solution for audience targeting, saw utilization meaningfully accelerate in the quarter, fueled by a growing number of advertisers electing to deploy sophisticated campaign strategies. Household ID delivers superior addressability for advertisers looking to activate their first-party data to reach specific audiences and measure campaign performance. It is embedded in approximately 80% of all programmatic bid requests and now 96% of all CTV requests. And with 95% of all household addresses mapped to Viant's ID graph, we can connect advertisers to addressable audiences at a massive scale, offering over 4x the coverage of other competing identity offerings. On May 1, we closed on our acquisition of TVision, a preeminent television measurement provider uniquely capable of quantifying consumers' eyes on screen attention while watching linear TV, connected TV, YouTube and Prime video content on and ad inventory. TVision gathers this proprietary data point through their nationally representative panel of U.S. households, each equipped with TVision's computer vision and automatic content recognition technology. TVision's attention data provides advertisers with 4 unique signals: in-room presence, co-viewership, viewer demographics and eyes on screen attention, with each signal offering critical insights exclusively available to Viant's advertiser clients. In-room presence lets our customers know if their ad was delivered to an audience or an empty room. Co-viewership measures the total number of viewers in the room, allowing advertisers to optimize decisioning to target larger audiences. TVision enables the most accurate targeting and reporting of demographics across linear TV, CTV and walled garden content. Within a typical household, one logged-in user registers across various streaming services, but a typical household includes multiple individuals, each with their own viewership preferences. As an example, in my household, Amazon believes my wife is watching the NBA playoff game on Prime Video because she holds the Amazon account for our household. TVision's technology identifies the actual viewers within that household that are sitting in front of the TV when the content plays. Eyes on screen attended viewership tracks whether the audience is actively watching the TV screen during content and ad airings or if they are distracted or disengaged. Together, these insights provide Viant with an exclusive lens of the CTV market and enable our bidding algorithms to price all CTV inventory on a first-of-its-kind attention-adjusted CPM. Viant receives these attention signals in real time ahead of the ad break. enabling our AI-powered buying platform to assign definitive attention scores and corresponding attention-adjusted CPMs to all CTV ad inventory and direct purchase decisions toward inventory where attention and price are aligned to maximize return on ad spend efficiency and deliver optimal outcomes. To be clear, Viant's proprietary data, comprising exclusive content, identity and attention signals is unique to Viant and cannot be replicated by competitors such as Google, Amazon, OpenAI or Anthropic. This is attributable to the strategic acquisitions of Iris and TVision as we are the only company currently capable of activating attention as a prebid signal for advertisers. providing an exclusive and differentiated performance advantage for our clients. This takes me to ViantAI. Leveraging proprietary data spanning content, identity and attention, our fully autonomous AI-powered ad platform is actively building and executing campaigns without any human intervention and is delivering return on ad spend performance that human traders cannot beat. In early January, we launched Outcomes, a fully autonomous ad product designed to serve performance ad budgets. Outcomes is the do-it-for-me solution for the open Internet, ingesting just 4 basic inputs: the advertiser, the budget, the flight dates and the goal. Based on these inputs, ViantAI constructs the most optimal media plan, leveraging our exclusive data. After the advertiser provides ViantAI with their goals and budgets, ViantAI automatically constructs the ad campaign and transparently shows the advertiser where their ad will be placed to which audiences it will be shown, the times of day it will run and before deployment, ask the advertiser for approval. Once approved, ViantAI implements, executes, optimizes and reports on the results without any human intervention, making decisions in milliseconds. Together, our exclusive data and ViantAI's the Lattice brain decisioning engine is producing better results than any form of manual optimization could ever achieve. And coming soon, Viant AI and our Outcomes product will lever TVision's attention data to optimize bidding decisions toward inventory that commands high attentive scores and features attractive attention-adjusted CPMs, driving yet another enhancement to return on ad spend efficiency that no other platform can offer. A growing number of advertiser clients are utilizing ViantAI and our Outcomes product to deploy ad spend, and we continue to deliver impressive results. We will continue to expand the adoption of ViantAI's full capabilities amongst our current customers while continuously enhancing the solution based on learnings from every impression we deliver and every exclusive data point ViantAI receives. In summary, Viant is transforming from a media execution platform into an advertising intelligence company. The competitive landscape is increasingly split between traditional DSP's focused on media execution and closed ecosystems built around owned data, owned inventory and self-contained measurement. Viant is building a different model, one built around the advertiser. We are combining proprietary data, independent measurement and real-time activation into one self-reinforcing platform. Our identity, content intelligence, attention data and cross-channel measurement help advertisers understand what media is worth, which impressions deserve investment and how to activate against those signals in real time. That combination strengthens our moat and separates Viant from platforms built primarily around execution alone as well as closed ecosystems where the same company sells the media and measures their own results. That is the model we are building, and it is the foundation for the next phase of Viant's growth. With that, I'll turn it over to Chris to walk through the current market dynamics.