Zeta Global Revenue Surges 50% as AI Platform Athena Drives Record Customer Growth

Key facts

• Q1 2026 revenue reached $396 million, up 50% year-over-year, exceeding guidance midpoint by $26 million.
• Super-scaled customer count rose 19% to 189, with average revenue per user up 21% to $1.7 million.
• Athena by Zeta, launched March 24, accounted for over 60% of AI platform usage and drove 7x more agent interactions in its first week.
• Full-year 2026 revenue guidance raised by $30 million to $1,785 million at midpoint, representing 37% growth.
• Adjusted EBITDA guidance increased to $396.2–$398.4 million, with margin of 22.1%–22.4%.
• Free cash flow guidance raised to $234.5–$235.5 million, up $3.8 million from prior guidance.
• Company guides to positive GAAP net income for full year 2026.
• CFO Chris Greiner noted the 19th consecutive quarter of beat-and-raise performance reflects sustained demand in a consolidating market.

A 50% Revenue Surge Powered by AI

Zeta Global delivered first-quarter revenue of $396 million, a 50 percent jump from the same period last year, surpassing the midpoint of its own guidance by $26 million. The results, announced after market close on April 30, 2026, mark the company’s 19th consecutive quarter of beating expectations and raising forecasts — a streak its chief financial officer, Chris Greiner, called evidence of “sustained demand in a market consolidating around platforms that can deliver measurable outcomes at scale.” The acceleration was fueled by the general availability launch of Athena by Zeta on March 24, an AI marketing agent that the company says functions as a core operating system for enterprise workflows. In its first week, Athena generated more than seven times the number of agent interactions compared to prior tools and accounted for over 60 percent of all AI platform usage, according to the company.

Customers Consolidate Around a Unified Platform

Zeta’s super-scaled customer base — those generating more than $500,000 in annual revenue — grew 19 percent year-over-year to 189 accounts. The average revenue per such customer rose 21 percent to $1.7 million, reflecting deeper adoption of the company’s integrated marketing cloud. Chief executive David A. Steinberg attributed the gains to a system built on proprietary data that “improves with every interaction” and intelligence that “compounds with every decision.” “This results in an average 600 percent return on marketing spend for our customers,” Steinberg said. He described Athena as an accelerator that removes barriers to enterprise-wide AI adoption, positioning Zeta as “the disruptor in the AI driven replacement cycle.” The company’s usage-based pricing model, which ties revenue directly to customer engagement with its AI tools, has drawn increased attention from Wall Street analysts ahead of the earnings release.

Second Consecutive Guidance Raise Signals Confidence

For the second quarter of 2026, Zeta expects revenue between $419 million and $422 million, a $4 million increase at the midpoint from prior guidance, representing year-over-year growth of 36 to 37 percent. Excluding political candidate and Marigold’s Enterprise Business revenue, the growth rate is 20 to 21 percent. Adjusted EBITDA for the quarter is forecast at $86.2 million to $86.9 million, with a margin of 20.4 to 20.8 percent. For the full year, the company lifted its revenue outlook by $30 million to a range of $1.779 billion to $1.792 billion, implying 36 to 37 percent growth. Adjusted EBITDA guidance rose to $396.2 million to $398.4 million, up $6.3 million at the midpoint, with margins expanding to 22.1–22.4 percent. Free cash flow guidance was increased to $234.5 million to $235.5 million, up $3.8 million. Zeta also guided to positive GAAP net income for the full year, a milestone that would mark a shift from prior losses.

The Athena Effect and Market Consolidation

The rapid adoption of Athena has become central to Zeta’s investment narrative. Several Wall Street firms highlighted the AI marketing agent and the company’s usage-based model as key drivers ahead of the earnings call, focusing attention on whether near-term results would confirm that AI products are translating into higher usage and better margins. The company’s ability to raise guidance for a second consecutive quarter — after increasing the 2026 midpoint by $25 million in February — suggests that early Athena uptake is already influencing financial performance. Yet the broader context includes intense competition from larger software providers and ongoing GAAP losses, though the company now expects to turn profitable on a net income basis this year. Some analysts project revenue of roughly $2.3 billion and earnings near $182 million by 2029, while more cautious estimates see similar revenue but earnings of about $223.6 million, highlighting divergent views on margin expansion. Zeta’s own narrative targets $2.3 billion in revenue and $223.6 million in earnings by 2029, requiring 21.4 percent annual revenue growth.

Regulatory Scrutiny Looms Over Data Practices

Behind the AI excitement, Zeta faces growing regulatory and legal scrutiny that could eventually reshape how it uses data. The company’s proprietary data set, which improves with each customer interaction, is a core competitive advantage, but also a potential liability as regulators worldwide tighten rules on consumer data collection and AI-driven profiling. Any adverse regulatory action could increase compliance costs or restrict the data inputs that power Zeta’s marketing models. Investors will be watching for any updates on legal proceedings or regulatory developments in the coming quarters, as the company’s ability to sustain its growth trajectory depends in part on maintaining unfettered access to the data that fuels its AI platform. For now, the market’s focus remains on the accelerating revenue and customer growth driven by Athena, but the longer-term risk of regulatory headwinds has not dissipated.

Outlook: Can the AI Momentum Last?

Zeta’s 19th consecutive beat-and-raise quarter and the strong early performance of Athena provide a powerful near-term narrative, but the company must demonstrate that the AI-driven growth is durable and not a one-time surge from pent-up demand. The raised guidance for both the second quarter and full year suggests management sees Athena as a sustainable driver, but the competitive landscape remains intense, with larger players investing heavily in AI marketing tools. The company’s path to positive GAAP net income this year will be a key test of its ability to scale profitably. With free cash flow margins guided to 13.1–13.2 percent, Zeta is generating cash, but the margin is still relatively thin for a software company. The next few quarters will reveal whether Athena can continue to accelerate customer acquisition and revenue per user, or whether the initial burst of adoption will taper off. For now, Zeta has delivered a quarter that reinforces its position as a disruptor in the AI marketing space.

The bottom line

• Q1 2026 revenue of $396 million, up 50% year-over-year, and raised full-year guidance for the second consecutive quarter.
• Athena by Zeta, launched in March, drove over 60% of AI platform usage and 7x more agent interactions in its first week.
• Super-scaled customer count rose to 189, with ARPU up 21% to $1.7 million, reflecting deeper platform adoption.
• Full-year 2026 revenue guidance raised to $1.785 billion midpoint, with adjusted EBITDA margin expanding to 22.1–22.4%.
• Company guides to positive GAAP net income for 2026, a milestone after prior losses.
• Regulatory and legal scrutiny over data practices remains a key risk to the company's AI-driven growth model.