PubMatic, a leading sell-side platform (SSP), is redefining the advertising technology landscape by expanding its agentic ad tech solutions beyond direct ad buys, signaling a significant shift in how digital advertising campaigns are executed. During its first-quarter earnings call on Thursday, May 8th, 2026, CEO Rajeev Goel announced that the company has successfully completed over 30 fully autonomous, end-to-end agentic campaigns through its proprietary AgenticOS platform. This milestone underscores a strategic pivot towards AI-driven automation within the programmatic advertising ecosystem.
The company’s foray into agentic technology is already yielding tangible results, contributing significantly to its financial performance. In the first quarter of 2026, PubMatic reported an impressive 80% year-over-year growth in its emerging revenue category, largely fueled by the scaling of AI-driven deals. This burgeoning segment now accounts for 14% of the company’s total revenue, a testament to the growing demand for automated advertising solutions. Overall, PubMatic’s Q1 revenue reached $62.6 million, marking a robust 13% year-over-year increase. This growth was further bolstered by double-digit year-over-year increases in monetized impressions, with its Connected TV (CTV) standalone category seeing an 18% rise and mobile app revenue surging by 25%.
The Agentic Advantage: Efficiency and Cost Savings
PubMatic’s AgenticOS platform is not merely a technological advancement; it’s a strategic enabler of enhanced campaign efficiency and cost savings for advertisers. According to CEO Rajeev Goel, buyers leveraging this solution are experiencing substantial improvements in their Cost Per Mille (CPM), with reported gains of 30% to 40%. Furthermore, the platform allows buyers to access 40% more publisher inventory due to the elimination of intermediary fees inherent in end-to-end agentic deals processed through PubMatic’s infrastructure.
"It’s a single layer of technology, and it looks a lot like what the walled gardens leverage to drive ad performance," Goel stated during the earnings call, drawing a parallel to the sophisticated, integrated systems employed by major tech giants. This streamlined approach simplifies the ad tech supply chain, a critical objective for many in the industry seeking greater transparency and control.
PubMatic’s commitment to consolidating the ad tech supply chain is further evident in its Activate direct-to-buyer connection, which has seen its business triple since the first quarter of the previous year. Complementing this, its Connect data platform has expanded its network to include over 300 data and commerce media partners, including prominent players like Walmart Connect and PayPal Ads, underscoring its growing influence in the data-driven advertising space.
Mobile and CTV Momentum Drives Revenue Growth
The mobile advertising sector continues to be a significant revenue driver for PubMatic. The company’s mobile app business experienced a substantial 25% year-over-year growth, contributing to a 5% increase in display advertising revenue. Combined revenue from mobile and omnichannel video now constitutes a commanding 79% of PubMatic’s Q1 revenue. This sustained performance is supported by PubMatic’s deep integration with the three leading mobile ad mediation platforms: AppLovin Max, Google AdMob, and Unity LevelPlay. The company now boasts access to over 90% of global mobile SDK inventory, positioning it as a pivotal player in the mobile advertising ecosystem.
Adding another layer to its AI-driven capabilities, Goel highlighted AgenticOS’s Creative Innovation Suite. This AI-powered tool is designed to generate consistent creative assets across various touchpoints, including CTV, mobile, and online display, ensuring a unified brand experience for targeted audiences. Agencies such as Horizon Media, Crossmedia, and Kelly Scott Madison have reportedly adopted this innovative suite.
Despite these positive developments, investor sentiment remains cautiously optimistic regarding the sustainability of PubMatic’s agentic AI business in terms of true revenue growth. Some investors expressed concern that while AgenticOS is facilitating over 1,000 direct deals and more than 30 end-to-end autonomous campaigns, this still represents "an immaterial percentage" of PubMatic’s overall business operations. In response, PubMatic CFO Steve Pantelick emphasized that AI’s impact extends beyond direct campaign execution, contributing to operational efficiencies such as accelerating campaign setup and troubleshooting for publishers. The company anticipates these broader AI-driven improvements will continue to fuel double-digit growth, alongside its strong performance in mobile and CTV.
Navigating DSP Competition and Market Headwinds
While PubMatic is aggressively pursuing its AI agenda, it is simultaneously navigating persistent challenges within the programmatic ecosystem, particularly the competitive dynamics between Demand-Side Platforms (DSPs) and Supply-Side Platforms (SSPs) for direct advertiser business. The company acknowledged ongoing headwinds stemming from a major, unnamed DSP – widely understood to be The Trade Desk – which has reduced its spending on PubMatic’s SSP. This reduction is largely attributed to the increasing adoption of The Trade Desk’s OpenPath solution, a direct-to-publisher offering that bypasses SSPs. This shift contributed to a 12% year-over-year decline in PubMatic’s US revenue during Q1. However, this decline was partially offset by significant growth in other regions, with the Asia-Pacific market experiencing a 25% increase and the Europe, Middle East, and Africa (EMEA) region growing by 10%.
The impact of this unnamed DSP’s reduced activity is projected to continue affecting PubMatic’s earnings in the second quarter, with the company forecasting a revenue decrease of between 2% and 4%. In response to investor inquiries, CFO Steve Pantelick clarified that revenue from the DSP in question exceeded expectations in Q1 due to PubMatic’s proactive efforts to "optimize our platform to meet the needs of this buyer." The company anticipates fully lapping the impact of this DSP’s pullback by the third quarter of 2026.
To mitigate the financial impact of this specific DSP’s withdrawal, PubMatic has strategically expanded its partner network, onboarding over 50 additional DSPs in the past year. Furthermore, its integrations with mid-market DSPs saw a 20% growth in Q1. In a significant move to bolster its publisher offerings, PubMatic also secured a partnership with Amazon DSP this quarter. This collaboration involves integrating Amazon’s Dynamic Traffic Engine, which has reportedly enhanced publisher CPMs by up to 10% since its implementation.
Strategic Outlook and Future Innovations
Looking ahead, PubMatic faces immediate organizational changes with the departure of Kyle Dozeman, CRO of the Americas, and Paulina Klimenko, Chief Growth Officer. CEO Rajeev Goel indicated that the company is exploring consolidation of responsibilities, potentially creating a new global Chief Revenue Officer (CRO) position.
PubMatic identifies continued growth opportunities in serving mid-market, performance-focused DSPs and independent mid-sized agencies. These segments have demonstrated a more rapid adoption of AI solutions compared to their larger, more established counterparts.
The company also expressed keen interest in collaborating with OpenAI as ChatGPT expands its advertising capabilities. PubMatic has already engaged with smaller AI players like Kontext and Dappier, and is actively "innovating on the ad formats and appropriate signals to monetize that kind of inventory." Goel referenced OpenAI’s ambitious target of generating $100 billion in ad revenue by 2030 as a clear indicator of the necessity for collaboration with established platforms like PubMatic. "It’s going to be an ecosystem-wide effort for them to get to that level," he concluded, underscoring the symbiotic relationship required for such ambitious industry-wide transformations. This strategic positioning suggests PubMatic is poised to capitalize on the evolving AI landscape, aiming to maintain its leadership in the programmatic advertising space.
