Viant Technology Reveals $250M Growth Opportunity with ViantAI Expansion

Key Highlights from Viant Technology’s Q2 2025 Earnings Call

During the second quarter of 2025, Viant Technology Inc. (DSP) reported impressive results, with leadership highlighting record performance across multiple metrics. Tim Vanderhook, CEO, emphasized that the company achieved new benchmarks in revenue and contribution ex-TAC, both aligning with quarterly guidance. The CEO attributed the strong growth to increased demand for CTV offerings, greater adoption of addressability solutions, and the expanded use of the ViantAI product suite.

One of the key developments discussed was the expansion of the CTV Direct Access premium publisher program. This initiative saw new integrations with publishers and a significant partnership with LG, a major CTV OEM. This collaboration allows advertisers to efficiently reach LG’s 45 million connected devices in the U.S. Additionally, Viant integrated its content identifier, IRIS_ID, with Wurl, further expanding its reach to over 3,000 FAST channels across more than 55 streaming services.

The rollout of the ViantAI product suite continued with three phases launched, with the final phase—AI Decisioning—expected by late 2025. According to Vanderhook, AI Bidding automates approximately 85% of ad spending on Viant's platform, and the contribution ex-TAC generated from this feature has doubled year-over-year.

Vanderhook also highlighted the potential for new business opportunities, stating that recent pitches with major U.S. advertisers have created a pipeline exceeding $250 million in incremental ad spend. This indicates strong interest from large advertisers looking for innovative solutions.

Brett Wilson, former CEO of TubeMogul, joined the Board of Directors, signaling confidence in the company’s direction. Chris Vanderhook, COO, noted that ViantAI is designed to be user-friendly, eliminating the need for extensive training or certification. He explained that if users can chat, ViantAI can handle the rest.

CFO Lawrence J. Madden provided financial details, reporting revenue of $77.9 million for the quarter, an 18% increase year-over-year and 10% quarter-over-quarter. Adjusted EBITDA reached $11.3 million, surpassing the midpoint of guidance by 3% and growing 18% year-over-year.

Outlook for Q3 2025

For the third quarter, the company provided guidance with revenue expected between $83.5 million and $86.5 million, representing a 6% year-over-year increase and 9% sequential growth at the midpoint. Contribution ex-TAC is projected to range from $51 million to $53 million, reflecting 10% year-over-year growth and 8% sequentially. Non-GAAP operating expenses are anticipated to be between $37 million and $38 million, up 15% year-over-year and 1% sequentially. Adjusted EBITDA is expected to be between $14 million and $15 million, showing a 1% year-over-year decline but a 29% sequential increase.

Management noted two temporary factors impacting near-term results: lapping a high political ad spend comp and the loss of an advertiser due to an agency switch. These factors combined reduced revenue growth by 1,200 basis points and contribution ex-TAC growth by 1,000 basis points for Q3.

Financial Results and Strategic Moves

In Q2, Viant reported revenue of $77.9 million, with contribution ex-TAC totaling $48.4 million, up 16% year-over-year and 13% sequentially. Adjusted EBITDA reached $11.3 million, with a margin of 23% of contribution ex-TAC. Non-GAAP net income for the quarter was $8 million, with non-GAAP basic earnings per Class A share at $0.10.

The company ended the quarter with $173 million in cash and cash equivalents, no debt, and returned $10.8 million to shareholders through share repurchases. CTV accounted for about 45% of total ad spend, while emerging digital channels made up nearly 55% of total platform spend.

Analyst Questions and Management Responses

Analysts raised questions about ViantAI’s market differentiation and sales strategies. Vanderhook emphasized the company’s advantage in addressability solutions, particularly Household ID. Chris Vanderhook mentioned that the enterprise team is actively pursuing larger customers.

When asked about specific features of ViantAI attracting larger marketers, Vanderhook highlighted AI Bidding, which has led to 46% savings in media costs. Regarding the $250 million ad spend pipeline, he clarified that it represents incremental growth, with the company expecting to win a fair share.

Tim Vanderhook also addressed the monetization opportunity of the full AI suite, noting the potential to target millions of advertisers that platforms like Meta and Google serve. When questioned about competition from Amazon and walled gardens, Vanderhook expressed confidence, stating that concerns around Amazon’s competitiveness are overblown.

Sentiment and Market Positioning

Analysts focused on the $250 million pipeline, AI-driven efficiencies, and competitive positioning, maintaining a generally positive but probing tone regarding growth sustainability and risks. Management remained confident and optimistic, emphasizing innovation and product differentiation.

Compared to the previous quarter, analyst sentiment shifted from macro headwinds and competitive threats to a focus on execution and pipeline realization. Management’s tone became even more confident as ViantAI adoption and new business opportunities strengthened.

Quarter-over-Quarter Comparison

In Q2, revenue grew 18% year-over-year, compared to 32% in Q1. Contribution ex-TAC growth moderated to 16% from 25% in Q1. Guidance language shifted to acknowledge temporary headwinds from political ad comps and an advertiser loss, whereas Q1 focused on resilience amid macro uncertainty.

The scale of new business opportunities has grown, with the $250 million ad spend pipeline now a key driver. Management’s confidence increased, citing record metrics and accelerated AI adoption, while analysts’ focus moved from macro risks to execution of the expanding pipeline and the impact of AI initiatives.

Risks and Concerns

Madden noted that the company’s results would have been stronger without a temporary disruption caused by three advertisers pausing their campaigns during the quarter. This created a headwind of nearly 300 basis points to revenue growth and over 400 basis points to contribution ex-TAC growth.

Guidance for Q3 reflects two nonrecurring headwinds: high political ad spend comp and the loss of an advertiser due to an agency change, with a "1,200 basis points" negative impact on revenue growth.

Management emphasized ongoing investment in enterprise sales and customer relationships to mitigate future agency-related losses.

Final Takeaway

Viant Technology delivered record results in Q2 2025, driven by strong demand for CTV and AI-powered solutions, while building a $250 million pipeline of new business opportunities with major U.S. advertisers. The company continues to advance its ViantAI suite, targeting further market expansion and operational simplicity, and maintains a strong financial position with disciplined capital allocation. Despite temporary headwinds in the upcoming quarter, management remains confident in the potential for accelerating growth through 2026 as new contracts and product innovations take hold.