Zeta Growth Drivers and Catalysts

2Q21 Financial Results Overview David Steinberg Chief Executive Officer Co-Founder, Chairman Chris Greiner Chief Financial Officer 2Q21 FINANCIAL RESULTS We continued our strong momentum, increasing revenue growth rates from 25% in the first quarter to 39% in the second quarter. Revenue growth translated to powerful operating leverage, with Adj. EBITDA growing 106% YTY and 350 bps YTY in Adj. EBITDA margin'. 2Q21 BROAD BASED STRENGTH We saw strong double-digit growth across a diverse spectrum of the business. In total, we added >30 new logos in 2Q21 with scaled customers (>$100K TTM Rev) increasing from 333 in 1Q21 to 343 in 2Q21. Scaled customer ARPU was up 44% YTY. Revenue generated Direct on the ZMP increased from 74% to 77% in 2Q21, highlighted by strong Omnichannel growth with CTV up ~500%. Total 2Q21 revenue growth of 39% was contributed evenly by new (20.3pts) and existing (18.3pts) customers, with record Zeta NRR. FULL YEAR 2021 GUIDANCE With the first half off to such a strong start and strong revenue predictability, we improved our outlook in revenue and Adj. EBITDA. We are guiding revenue of $432M to $436M, up 22% to 24% YTY excluding last year's one-time Presidential Cycle revenue. We are guiding Adj. EBITDA to $55.5M to $57.5M, up 43% YTY at the midpoint. ZETA 1. Adjusted EBITDA, Adjusted EBITDA Margin are non-GAAP metrics, see reconciliation in Appendix. 11

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