#1DV DoubleVerify Investor Presentation Quarter Ended September 2023#2Disclaimer This presentation contains "forward-looking statements" that are based on management's beliefs and assumptions and on information currently available to management. These forward- looking statements include, but are not limited to, statements about our plans, objectives, expectations and intentions and other statements contained herein that are not historical facts. When used herein, the words "expects," "anticipates," "intends,” “plans,” “believes," "seeks," "will," "should," "could," "estimates" and similar expressions are generally intended to identify forward-looking statements. In particular, statements about the markets in which we operate, including growth of our various markets, and statements about our expectations, beliefs, plans, strategies, objectives, prospects, assumptions or future events or performance contained in this presentation are forward-looking statements. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievement to be materially different from any projected results, performance or achievements expressed or implied by the forward-looking statements. Forward-looking statements represent the beliefs and assumptions of DoubleVerify Holdings, Inc. (the "Company") only as of the date of this presentation, and we undertake no obligation to update or revise, or to publicly announce any update or revision to, any such forward-looking statements, whether as a result of new information, future events or otherwise. As such, the Company's results may vary from any expectations or goals expressed in, or implied by, the forward-looking statements included in this presentation, possibly to a material degree. We cannot assure you that the assumptions made in preparing any of the forward-looking statements will prove accurate or that any long-term financial or operational goals or targets will be realized. For a discussion of some of the risks, uncertainties and other factors that could cause the Company's results to differ materially from those expressed in, or implied by, the forward- looking statements included in this presentation, you should refer to the "Risk Factors" section and other sections in the Company's Form 10-K filed with the SEC on March 1, 2023, Form 10-Q filed with the SEC on July 31, 2023 and the Company's other filings and reports with the SEC. In addition to disclosing financial results that are determined in accordance with U.S. generally accepted accounting principles ("GAAP"), the Company also discloses in this presentation certain non-GAAP financial measures, including Adjusted EBITDA, Adjusted EBITDA Margin and Adjusted EBITDA less Capital Expenditures. We believe that these non-GAAP financial measures are useful to investors for period-to-period comparisons of the Company's core business and for understanding and evaluating trends in the Company's operating results on a consistent basis by excluding items that we do not believe are indicative of the Company's core operating performance. These non-GAAP financial measures have limitations as analytical tools, and are presented for supplemental purposes and should be considered in addition to, and not in isolation or as substitutes for an analysis of the Company's results as reported under GAAP. In addition, other companies in the Company's industry may calculate these non-GAAP financial measures differently than the Company does, limiting their usefulness as a comparative measure. You should compensate for these limitations by relying primarily on the Company's GAAP results and using the non-GAAP financial measures only supplementally. A reconciliation of these measures to the most directly comparable GAAP measures is included at the end of this presentation. In addition, this presentation contains industry and market data and forecasts that are based on our analysis of multiple sources, including publicly available information, industry publications and surveys, reports from government agencies, reports by market research firms and consultants and our own estimates based on internal company data and management's knowledge of and experience in the market sectors in which the Company competes. While management believes such information and data are reliable, we have not independently verified the accuracy or completeness of the data contained in these sources and other publicly available information. Accordingly, we make no representations as to the accuracy or completeness of that data nor do we undertake to update such data after the date of this presentation. DV DoubleVerify 2#3Table of Contents 1. Business Overview 2. Company Overview 3. Recent Business Developments 4. Growth Drivers and Customer KPIs 5. Financial Overview#4DV DoubleVerify Business Overview#5DV DoubleVerify What DoubleVerify Does We make digital advertising stronger, safer and more secure. DV's Software Solutions Media Safety and Quality $ Reduce Media Waste Protect Brand Equity Drive better outcomes for advertisers Media Performance Maximize Media Effectiveness Improve Transparency /Optimization LO 5#6Challenges We Address 8 Brand Safety 78% of brands hurt by associations with objectionable content¹ ! Fraud 100% increase in fraud schemes uncovered by DV from 2020 to 20222 Viewability >40% Of unmanaged display and video ads are never seen² Geo 65% of media spending on location-based advertising is wasted³ 1. CMO Council DV DoubleVerify 2. DV Global Insights Report 2023 3.Location Sciences (2019)#7With Solutions Throughout The Media Transaction Pre-campaign Activation Advertisers implement DV controls throughout the media transaction Post-campaign Measurement Pre-campaign Activation Planning, Pre-bid Targeting and Avoidance Brand Safety DV SOLUTIONS DV AUTHENTIC AD Post-campaign Measurement Post-bid Monitoring and Blocking Brand Safety, Geo Fraud, Viewability, Brand Suitability DV AUTHENTIC BRAND SAFETY Fraud, Viewability, Brand Suitability DV CUSTOM Performance: Contextual, Attention CONTEXTUAL Performance: Attention Performance: OpenSlate ⑱ DV AUTHENTIC ATTENTION Audience: Verified Reach and Demos DV INVESTMENT METRICS Media Investment DV DoubleVerify 7#8Creating A Large and Growing Market Opportunity We believe all advertising spending will eventually be digitally transacted, including the $170 billion that is forecast to be spent on linear TV in 2023². Digital Ad Spend (ex-Search) 2020-20251 $ in billions Global Advertising Forecast 20261 12% Five-Year CAGR $281 $261 $245 $187 $322 $303 2020A 2021A 2022E 2023E 2024E 2025E DV DoubleVerify 1. Magna Global forecasts as of September 2023 2. Global Ad Spend 2023 Forecast Dentsu International >$984B Global Ad Spend $721B Global Digital Ad Spend $343B Global Digital Ex-Search Ad Spend#9DV DoubleVerify Company Overview#10DoubleVerify's Resilient Fundamentals Essential Solutions Protect brand equity Reduce media waste Improve ROI Fixed-Fee Business Model Helps insulate revenue from CPM volatility DV DoubleVerify Verify Everywhere Strategy Makes DV largely agnostic to shifts in ad spend across sectors Diversified Customer Base No single vertical drove more than 21% of revenue in FY '22 DV DoubleVerify Customers = Top Global Brands The world's largest and most trusted brands Under- penetrated TAM Capitalizes on an expanding category within a vast and untapped global market 10#11Strong Track Record of Consistent Revenue Growth Revenue $ in millions YoY Growth +36% +27% +34% +36% $572 $452 +75% $333. $244 $183 $104 Adjusted Ebitda¹ $ in millions O Adj. EBITDA margin¹ 32% 31% $181 33% 30% $142 38% 25% 1 $110 $69 $73 $27 2018A 2019A 2020A 2021A 2022A 2023E 2018A 2019A 2020A 2021A 2022A 2023E 2008 Year Founded 902 Employees at year-end 2022 5.5T $43M $95M Media Transactions Measured in FY 2022 Net Income in FY 2022 Net Cash from Operating Activities FY 2022 127% Net Revenue Retention FY 2022 DV DoubleVerify 1. Adjusted EBITDA and Adjusted EBITDA Margin are non-GAAP financial measures. Non-GAAP measures have limitations as analytical tools and should not be considered in isolation or as substitute for an analysis of results as reported under GAAP. See Appendix for a reconciliation of Adjusted EBITDA and Adjusted EBITDA Margin to the nearest financial measures reported under GAAP 11#12✓ Our Three Key Differentiators Scale Across Platforms Innovation Identifier Independent and Industry Leading Trust Accredited & Objective DV DoubleVerify 12#13✓ Scale We Verify Everywhere Every impression, on every platform, in any media, across any market on the planet. Video Desktop/Laptop DV DoubleVerify CTV PLATFORMS FORMATS Display VIEWABLE Mobile DEVICES BRAND SUITABLE DV AUTHENTIC AD IN GEO Application CONTENT TYPE Social Direct Programmatic Video Embed FRAUD FREE Web Page 13#14✓ Scale We Have Cross Platform Scale 5.5T Media Transactions Measured In 2022 Verify Everywhere Daily Transactions Processed¹ 300B Approximate Daily Data Transactions Processed In 2022 1.6M 1B 3.2B 300K Transactions Orders Shipped Credit Card Transactions Likes/ Comments 5.6B Searches 6.0B Transactions VISA Master Carch B amazon AMERICAN EXPRESS P G NYSE DV DoubleVerify 1.Spaceback presentation on Linkedin 100B Messages 300B Data transactions processed DV 14#15Innovation DV DoubleVerify Impartial Third-Party Verification Cookie Free, Identifier Independent Context at our Core DV CUSTOM CONTEXTUAL DV AUTHENTIC ATTENTION™ TRUSTe APEC Privacy Powered by TrustArc Certified Privacy & Info Security TRUSTe Verified International Privacy Powered by TrustArc TRUSTe APEC Processor Powered by TrustArc CERTIFIED BY CERTIFIED BY Neutronian Neutronian Cookieless ISO 27001 15#16Innovation PRE-CAMPAIGN ACTIVATION CORE VERIFICATION AUTHENTIC BRAND SUITABILITY DV CUSTOM CONTEXTUAL™M DV DoubleVerify Our Solutions Optimize Outcomes OPEN INTERNET amazon G▷ Google Display MediaMath Video 360 *xandr the TradeDesk yahoo! LEARNING & OPTIMIZATION POST-CAMPAIGN MEASUREMENT BRAND SUITABILITY VIEWABLE DV AUTHENTIC AD IN GEO FRAUD FREE 16#17Trust Continuing to Build and Deepen Trust The most widely recognized international standard for information security management. Information Security Management ISO 27001 Certified Demonstrates DV's commitment to information security, protection, and confidentiality. GRR Supports Long-term, Sticky Client Relationships +95% Q3 2023 GRR1 LARGE CUSTOMER GROWTH +11% # GENERATING >$200 K/YR2 DV DoubleVerify 1. Gross Revenue Retention Rate is the total prior period revenue earned from advertiser customers, less the portion of prior period revenue attributable to lost advertiser customers, divided by the total prior period revenue from advertiser customers. 2. DV grew the total number of customers generating more than 200 thousand dollars of revenue by +11% year-over-year, on a trailing twelve-month basis in Q3 2023. 17#18Trust Across programmatic targeting segments and post-bid measurement Comprehensive Media Rating Council® Accreditations Media Rating CouncilⓇ Accreditations Authentic Attention: Privacy-friendly Attention & Performance Measurement Authentic Brand Suitability: A single targeting segment for property-level Brand Suitability & IVT Authentic Viewable Impression: A unified quality metric standard (Viewability, Brand Suitability, & SIVT) Impression Counting Ad Viewability SIVT Display & Video Display & Video - CTV A Facebook (Third-party Integrated Reporting) * YouTube (Independent Reporting of Google ADH Data)* Display & Video Facebook (Third-party Integrated Reporting)* YouTube (Independent Reporting of Google ADH Data)* Programmatic targeting segments Detection & filtration Detection & filtration CTV Programmatic targeting segments - Desktop, Mobile Web, Mobile Apps & CTV Platform-wide avoidance - Desktop, Mobile Web, Mobile Apps & CTV Property-level detection, blocking & video filtering DV * Accredited by Media Rating CouncilⓇ Media Rating Council (MRC) MRC accreditation provides independent third-party validation that a product and company's procedures, controls, disclosures and reporting meet established industry standards for validity, reliability and effectiveness. Accredited display & video solution ● Accredited video solution Brand Suitability & Safety Property-level detection, blocking & video filtering CTV Property-level programmatic targeting segments Platform-wide avoidance (Brand Safety Floor) Custom & Standard Contextual Segments: Property-level contextual programmatic targeting segments DV DoubleVerify + Applies to Newsfeed placement types in Facebook Desktop and Mobile Newsfeed and Instagram Newsfeed Data specifically from Google Ads, DV360 and YouTube Reserve services Accreditations are across desktop, mobile web and mobile apps environments unless otherwise mentioned. *Accredited in 41 languages for domains, mobile apps and pages (9 for CTV apps). 18#19DV DoubleVerify Recent Business Developments#20Key Business Highlights Launching Innovative Outcome-Driving Products Algorithmic Optimizer Universal Attention Segments CTV Attention Measurement Scaling Core Verification Solutions Meta Reels YouTube Shorts N CTV & Retail Media Expanding Partnerships with Advertisers and Platforms Uber Sam's CLUB Pizza Hut NO ONE OUTPIZZAS THE HUT Liberty Mutual. INSURANCE BOSE unicef REVLON DE BEERS MOFA 2 SWAROVSKI AVIS Japan GROUP OF COMPANIES DV DoubleVerify DV DoubleVerify +Scibids 20 20#21Al Enhances Real-Time Decision Making DV DoubleVerify + DV DoubleVerify Scibids Al-powered optimization that makes DV data more impactful for advertisers and accelerates our evolution from protection to performance DATA ΑΙ OUTCOMES 21 221#22Scibids Al Expands DV's Addressable Market Global Advertising Spend and DV Addressable Market Forecast 20251 Scibids' Addressable Market Forecast 20251 >$320b Global Digital Ex-Search Ad Global programmatic ad spend¹ $123b ~$21b DV Addressable Market Global programmatic ad spend utilizing customizable bidding algorithms² $12b -$1b Scibids Addressable Market Scibids Addressable Market (based on % of spend) 2 $1b 1. Magna Global forecasts as of September 2023 DV DoubleVerify 2. DV and Scibids addressable market forecast is estimated by management 22 22#23Al Fuels Growing Revenue Opportunities NEW REVENUE Activation DV Scibids $ Al Optimization DV Programmatic Activation $ Authentic Brand Suitability $ Core Programmatic Products & Contextual 3rd Party Data DV DATA • Attention data • Audience data • Alternate verification data • • Cost data DV DoubleVerify Contextual data Viewability Existing Revenue M Measurement DV Measurement $ Authentic Attention $ DV Authentic Ad (brand safety, fraud, viewability) $ New revenue $ Existing revenue 23 23#24DV DoubleVerify Growth Drivers and Customer KPIs#25Significant Growth Opportunities for DV International Expansion Strategic M&A New Product Introduction & Upsell >50% of DV's Top 700 customers are using less than 4 products 3 Channel Expansion 16% of DV's revenue is derived from social with significant room for expansion 1 Current & New Client Growth/ Acquisition 61% of top 836 global advertisers not covered 2 29% of DV's measurement revenue is international with significant room for growth 1 DV DoubleVerify 1. Percentage of DV Q3'23 revenue. 2. Percentage of Top 836 global advertisers not active with DV as of December 31, 2022. 3. Percentage based off the last twelve months revenue data ending September 2023. • • International Expansion Product/Technology Extensions Product/ Technology Adjacencies 25 25#26Scibids Al Five Year Revenue Projection¹ 58% $15 - $17m CAGR 2024E DV DoubleVerify 1. Management's estimate of Scibids' revenue contribution ~$100m 2028E 26 26#27Large Product Cross-Sell and Up-Sell Opportunity DV Revenue Multiplier Opportunity 13.2x Plus Scibids Opportunity >50% of DV's Top 700 customers are using less than 4 products 2 3.6x 2.6x 1.8x 1.0x 6.0x 9.3x + $ Post Campaign Measurement Authentic Attention Social Core Social Measurement Programmatic Pre-Screen Activation Authentic Brand Suitability Custom Contextual Scibids Al Measurement Activation Customer Lifetime Revenue Can Grow Exponentially DV DoubleVerify 1. Data YTD June 30, 2023. Reflects revenue Multipliers Based on DV Product Pricing. 2. Percentage based off the last twelve months revenue data ending September 2023. 27#28The World's Largest Brands Rely on DV Mondelēz COMCAST International 4 COLGATE-PALMOLIVE at&t Kraft Heinz facebook NOVARTIS AstraZeneca vodafone Unilever Q3 2023 New Client Wins 67% Greenfield 33% Competitive Wins Marriott INTERNATIONAL Key New Client Wins, Expansions And Upsells In 2023 (ULTA P&G BEAUTY ROLEX BANK OF AMERICA IBM LEXUS Pfizer USAAⓇ GM e Fidelity INVESTMENTS amazon HYUNDAI (F) Tyson MOTOR GROUP THE HOME DEPOT DV DoubleVerify A Adobe DELL Reckitt Benckiser الشركة السعودية للقهوة SAUDI COFFEE COMPANY TotalEnergies meijer Miele NFL M mizkan. Bringing Flavor to Life TM 28#29Top 75 Customer Retention Long Standing Relationships and Exceptional Retention Top Customer Tenure (Yrs)1 Number of Customers >$1M in Annual Revenue 8.3 100% 100% 100% 100% 8.1 7.3 45 41 64 78 2019 2020 2021 2022 Top 25 Top 50 Top 75 2019 2020 2021 2022 DV DoubleVerify 1. Customer tenure as of year-end 2022. 2. Average revenue for Top 100 customers in each fiscal year. Average Revenue per Customer ($M)² $1.1 $2.6 $2.2 $1.8 2019 2020 2021 2022 29 29#30Diversified Client Base Bolsters Resiliency 2022 Revenue Mix¹ CPG 21% Technology 20% Telecom Retail Financial 12% 12% 11% Healthcare Media & Entertainment 7% 6% Automotive 5% Travel 3% Restaurants 2% Public Sector 1% 0% 5% 10% 15% 20% 25% DV DoubleVerify 1. Data as December, 2022. Reflects revenue contribution of Top 100 customers. Diversification reduces spend variability on any unique customer or vertical No single vertical is more than 21% 30#31DV DoubleVerify Financial Overview#32Financial Highlights Full Year 2022 YTD 2023 Rapid Growth At Scale 36% YoY Growth $452M Revenue 26% YoY Growth $400M Revenue High Profitability 31% Adj. EBITDA Margin² $142M Adj. EBITDA Strong Balance Sheet $0 $268M Long Term Debt At Year End Cash on Hand At Year End Excellent Customer Retention 100% Retention of Top 75 Customers Over Past 4 Years DV DoubleVerify 30% Adj. EBITDA Margin² $122M Adj. EBITDA $0 Long Term Debt $259M Cash on Hand 100% Retention of Top 75 Customers Over Past 12 Months 1 In-year revenue from prior year existing customers / prior year revenue from this subset of customers; excludes portion of unallocated programmatic revenue 2 Adjusted EBITDA and Adjusted EBITDA Margin are non-GAAP financial measures. Non-GAAP measures have limitations as analytical tools and should not be considered in isolation or as substitute for an analysis of results as reported under GAAP. See Appendix for a reconciliation of Adjusted EBITDA and Adjusted EBITDA Margin to the nearest financial measures reported under GAAP. 32 32#33Our Revenue Model % OF DV YTD 2023 REVENUE 92% Customers Products Integrations Model DV DoubleVerify Activation Pre-campaign Advertisers nini Post-Campaign Measurement 8% Publishers Supply Side Programmatic Social and CTV Direct Social and CTV Platforms S Transactional Media Transactions Measured (MTM) x Measured Transaction Fee (MTF) Publisher Subscription-based 33 33#34Strong Historical Growth Across All Revenue Types Activation ($M) 50% YOY GROWTH $83 $116 Measurement ($M) Supply Side ($M) Total ($M) 17% YOY GROWTH 47% YOY GROWTH 36% YOY GROWTH $452 $158 $43 $251 $136 $106 $168 $84 2019 2020 2021 2022 2019 2020 2021 2022 DV DoubleVerify $21 $15 $29 29 $244 $183 $333 2019 2020 2021 2022 2019 2020 2021 2022 Volume-Led Growth MEDIA TRANSACTIONS MEASURED (MTM) 2019-2022 +28% CAGR 34#35Strong Profitability and Cash Position Adjusted EBITDA ($M) & Margin %1 33% 31% 30% $142 38% 30% $122 $110 $69 $73 FY 2019 FY 2020 CASH POSITION $259 FY 2021 Balance Sheet ($M) AS OF 09/30/2023 FY 2022 YTD 2023 LONG-TERM DEBT $0 DV DoubleVerify 1. Adjusted EBITDA and Adjusted EBITDA Margin are non-GAAP financial measures. Non-GAAP measures have limitations as analytical tools and should not be considered in isolation or as substitute for an analysis of results as reported under GAAP. See Appendix for a reconciliation of Adjusted EBITDA and Adjusted EBITDA Margin to the nearest financial measures reported under GAAP. 35#36Appendix#37Non-GAAP Financial Measures Reconciliation ($mm) Net income (loss) Depreciation and amortization Stock-based compensation Interest expense FY 2019 FY 2020 FY 2021 FY 2022 YTD 20231 $23.3 $20.5 $29.3 $43.3 $38.4 21.8 24.6 30.3 34.3 29.4 1.7 20.5 21.9 42.3 42.8 5.2 4.9 1.2 0.9 0.8 Income tax (benefit) expense 12.1 (3.1) (3.5) 16.1 15.8 M&A and restructuring costs (a) 3.4 0.2 3.5 1.2 1.6 Offering, IPO readiness and secondary 2.8 4.9 23.6 1.3 0.6 offering costs (b) Other (recoveries) costs (c) 0.2 1.6 3.8 3.4 (0.8) Other (income) expense (d) (1.5) (0.9) (0.3) (1.2) (6.8) Adjusted EBITDA $69.0 $73.2 $109.7 $141.6 $121.6 % margin 38% 30% 33% 31% 30% DV DoubleVerify 1. YTD 2023 is the nine-months ended September 30, 2023 37#38Non-GAAP Financial Measures Reconciliation (a) (b) (c) (d) M&A and restructuring costs for the three and nine months ended September 30, 2023 consist of transaction costs related to the acquisition of Scibids Technology SAS ("Scibids"). M&A and restructuring costs for the three and nine months ended September 30, 2022 consist of transaction costs, integration and restructuring costs related to the acquisition of OpenSlate. Offering, IPO readiness and secondary offering costs for the three and nine months ended September 30, 2023 consist of third-party costs incurred for underwritten secondary public offerings by certain stockholders of the Company. Offering, IPO readiness and secondary offering costs for the three and nine months ended September 30, 2022 consist of third-party costs incurred for the Company's filing of a "shelf" registration statement on Form S-3. Other recoveries for the three and nine months ended September 30, 2023 consist of sublease income for leased office space. For the three and nine months ended September 30, 2022, other (recoveries) costs consist of sublease income for lease office space, offset by costs related to the departures of the Company's former Chief Operating Officer and Chief Customer Officer, impairment related to a subleased office space and costs related to the disposal of furniture for unoccupied lease office space. Other (income) expense for the three and nine months ended September 30, 2023 and September 30, 2022 consist of interest income earned on interest-bearing monetary assets, and of the impact of changes in foreign currency exchange rates. We use Adjusted EBITDA and Adjusted EBITDA Margin as measures of operational efficiency to understand and evaluate our core business operations. We believe that these non- GAAP financial measures are useful to investors for period to period comparisons of our core business and for understanding and evaluating trends in operating results on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. Fourth Quarter and Full-Year 2023 Guidance: With respect to the Company's expectations under "Fourth Quarter and Full Year 2023 Guidance" above, the Company has not reconciled the non-GAAP measure Adjusted EBITDA to the GAAP measure net income in this press release because the Company does not provide guidance for depreciation and amortization expense, acquisition-related costs, interest income, and income taxes on a consistent basis as the Company is unable to quantify these amounts without unreasonable efforts, which would be required to include a reconciliation of Adjusted EBITDA to GAAP net income. In addition, the Company believes such a reconciliation would imply a degree of precision that could be confusing or misleading to investors. DV DoubleVerify 38