#1Z zoominfo Investor Overview and Financial Results DATE May 2, 2022#2Q1 EARNINGS CALL > SAFE HARBOR STATEMENT Forward-Looking Statements This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. In some cases, you can identify these forward-looking statements by the use of words such as "outlook," "believes," "expects," "potential," "continues," "may," "will," "should," "could," "seeks," "predicts," "intends," "trends," "plans," "estimates," "anticipates," or the negative version of these words or other comparable words. Any statements in this presentation regarding future revenue, earnings, margins, financial performance, cash flow, liquidity, results of operations, unlevered free cash flow conversion rates, stock based compensation expense, depreciation and amortization expense, interest expense, capital expenditures, non-GAAP tax rates, or cash tax rates (including, but not limited to, the information provided under "Financial Results Overview - 2022 Guidance" and "Guidance"), our total addressable market ("TAM"), our potential opportunities within existing enterprise customers, our future investments in R&D, innovation and product offerings, the potential impact of COVID-19, future product or service offerings, expected customer growth or net retention, the anticipated benefits of previously announced acquisitions to us and our customers, our acquisition strategy, and any other statements that are not historical facts are forward-looking statements. We have based our forward-looking statements on our management's beliefs and assumptions based on information available to our management at the time the statements are made. We caution you that assumptions, beliefs, expectations, intentions and projections about future events may and often do vary materially from actual results. Therefore, actual results could differ materially from those expressed or implied by our forward-looking statements. Factors that could cause actual results to differ from those expressed or implied by our forward-looking statements include, among other things: future economic, competitive, and regulatory conditions, the COVID-19 pandemic, the successful integration of acquired businesses, and future decisions made by us and our competitors. All of these factors are difficult or impossible to predict accurately and many of them are beyond our control. For a further list and description of these and other important risks and uncertainties that may affect our future operations, see Part I, Item 1A - Risk Factors in our most recent Annual Report on Form 10-K filed with the Securities and Exchange Commission, which we may update in Part II, Item 1A - Risk Factors in Quarterly Reports on Form 10-Q we have filed or will file hereafter. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, investments, or other strategic transactions we may make. Each forward-looking statement contained in this presentation speaks only as of the date of this presentation, and we undertake no obligation to update or revise any forward-looking statements whether as a result of new information, future developments or otherwise, except as required by law. Z zoominfo 2#3Q1 EARNINGS CALL OVERVIEW Business Model Z zoominfo Growing TAM $70Bn Estimated TAM (1) Network Effects >100M Contact record events daily (2) Business Model >10x LTV/CAC(3)(4) Delivering Durable Growth and Profitability at Scale Scale $967M Annualized Q1 2022 Revenue Cash Flow $126M Q1 2022 Unlevered Free Cash Flow (5) Growth 58% Q1 2022 YOY Revenue Growth Profitability 39% Q1 2022 Adj. Operating Income Margin(5) Retention 116% (6) FY 2021 Net Revenue Retention rate. Large Customers 1,623 Customers w/ >100K ACV(²) 1. See footnote on slide 10. 2. As of or through March 31, 2022 as applicable 3. For the trailing twelve month period ended March 31, 2022 4. "LTV" is average lifetime value expected from a customer. "CAC" is our average customer acquisition cost 5. GAAP to non-GAAP reconciliations available in the non-GAAP reconciliations section of this presentation 6. For the trailing twelve month period ended December 31, 2021 3#4Q1 EARNINGS CALL > OVERVIEW Sales and Marketing is Still Inefficient Sales reps need critical questions answered before they can sell "Is it a parent or a subsidiary?" "Is this company in my territory?" "Is this company a high priority target?" "Do they use a competitive technology?" "Who is the decision maker?" "How can I reach this contact?" "What do I know about this contact?" Z zoominfo 1. According to 2018 Salesforce State of Sales report ADMIN & OTHER Only 1/3 of Sales Rep's Day is Spent Selling¹ SELLING GATHERING & ENTERING DATA Constant change amplifies inefficiency The business world is always changing People leave their jobs ↓ Companies get acquired ↓ Teams grow and change roles ↓ New targetable companies every day 4#5Q1 EARNINGS CALL > OVERVIEW Best-of-Breed in a Unified Platform: RevOS ZoomInfo Aligns Marketing and Sales Tech Stack in a Unified Platform A If 0 Q → in in 6 00 & D b iQ D V DT " OP Up 5 g S P. ☎ t CHILIPPER Category Contact Data Company Data Technographics Intent Conversation Intelligence Sales Engagement Pipeline Forecasting Conversational Marketing Enrichment Audience Solutions Account-Based Marketing Data Orchestration Key Contact Tracking NNNN N NNNNNNNN Z zoominfo Solutions 180m+ Contacts 100m+ Companies 30k+ Individual Technologies Streaming Intent Chorus Engage Chorus Momentum Chat Enrich Z Targeted Audiences ABM RingLead Tracker ********* Z zoominfo Market Reputation Ranked #1 for Lead Intelligence by G2 Ranked #1 in Market Intelligence by G2 Ranked #1 in Sales Intelligence by G2 Ranked #1 in Buyer Intent Data Tools by G2 Ranked #1 in Conversation Intelligence for Enterprise by G2 Ranked a Leader in Sales Engagement Software by G2 Ranked a Leader in Sales Coaching Software by G2 Ranked a High Performer in Conversational Marketing by G2 Ranked a Leader in B2B Marketing Data in Forrester Wave Ranked #1 for Marketing Account Intelligence Software by G2 Ranked a Leader in B2B Marketing Data in Forrester Wave Ranked a Leader in Data Quality Software by G2 #1 Ranked Sales Intelligence Solution with Key Contact Tracking by G2#6Q1 EARNINGS CALL > OVERVIEW Z RevOS The Modern Revenue Operating System Z Marketing OS Display and Social Advertising Account-Based Marketing Website Chat Form Enrichment Abandoned Form Tracking Audience Solutions Z TalentOS Recruitment Intelligence Recruitment Automation Talent Engagement Talent Pool Management Employer Branding Recruitment Marketing Z zoominfo Chat 11 THES Engagement Orchestration ZoomInfo Intelligence Engage pe 16 Chorus Z Sales OS Sales Intelligence Buyer Intent Data Key Contact Tracking Conversation Intelligence Pipeline Forecasting Sales Automation Website Chat Z Operations OS Data-as-a-Service Data Quality Management Lead-to-Account Matching Enrichment Routing Email Verification 6#7Q1 EARNINGS CALL > OVERVIEW The Modern Revenue Operating System OperationsOS MarketingOS Z zoominfo SalesOS Foundational Data Layer Building Awareness Capturing Leads Prospecting Nurturing & Conversion Creating Opportunities Close & Expand Loyalty & Advocacy Company & Contact Data Brick; Cleanse, Route, Prevent & Multi-Vendor Enrichment; API solutions Audiences & Advertising WebSights; FormComplete; Website Chat; Route Advanced Search; Salesforce Filtering; Intent Signals; Enrich; ReachOut; Engage; ListMatch; Scoops; Funding data; Tracker; Attributes Engage; Website Chat; Audiences; Buying Committee; Org charts; Workflows Chorus; Tracker; Intent Intent; Salesforce Filtering; Workflows; Chorus Chorus 7#8Q1 EARNINGS CALL OVERVIEW Diverse Data Sourcing Feeds Evidence-Based AI/ML Algorithms Data Sources We gather data from five categories of sources Z zoominfo Contributory Networks >100 Million contact record events daily Select First Party Data & Insights Hundreds of Millions daily Real Time Intent Signals Hundreds of Millions per month across -7,000 topics Unstructured Public Information Billions of web pages monitored Data Training Lab 300 human researchers Generally Available Information Limited amount of acquired data Data Types We gather a wide variety of intelligence on companies and business professionals Shared CRM/ System of Record Info Websire Visitor Tracking Email Delivery & Bounce Data E News Education Contact Data Company Data Job Changes Intent Data M&A Promotions Publish 2 Engine Our intelligence engine brings together, processes, verifies, and publishes intelligence Notify ? Parse Archive (2 Match AI Enrich Z יויו od HL Data Training Lab (2 Classify (2) Verify Standardize Consolidate 8#9Q1 EARNINGS CALL OVERVIEW Consistently Ranked as a Product Leader THE FORRESTER WAVE™ B2B Marketing Data Providers 201 Challengers Stronger ouren offering A Weaker current offering Contenders Westgy Strong Performers Solos 2 Davi -Eny LOracie Z zoominfo TechTaiget O Leadspace Dun & Bradstreet Globe Databa Market presence -0000 SMARTH Osta Axe 200 Text T ZoomInfo Technologies Leaders in Current Offerings and Strategies Leaders Stronger strategy The Forrester Wave B2B Marketing Data Providers G2 Grid for Sales Intelligence from Check out the 2 for the openience Software products 02 scores products anders also review urus community wat spregated from one sources and social networks Topper, these soures are mapped out propriaty 02 Grid which you can use to compare products, streamline the buying process, and quickly identify the best product based on the experiences of your pers Condary Niche 32-Grid 4 Ⓒ High Performers G2 Grid for Sales Intelligence ZoomInfo Technologies Leaders, High Performance and Satisfaction, Strong Market Presence Sales Intelligence Software TrustMap MỖ 50 -Less Coin + Gence 0-0 ead41 Research Frequency Sales Intelligence Software TrustMap ZoomInfo Technologies High Research Frequency, High Score N More 94 PRODUCT FEATURES AND SATISFACTION 75 SoftwareReviews PRODUCT INNOVATOR 75 CallRail CallTrackingMetrics 6 InsightSquared DialogTech CHALLENGER CONVERSATION INTELLIGENCE Data Quadrant Execision SalesLoft Upmarket Wingman ringONA VENDOR EXPERIENCE AND CAPABILITIES SERVICE STAR Conversation Intelligence Data Quadrant ZoomInfo Technologies Leader in Product Features and Satisfaction, Vendor Experience and Capabilities 94 9#10Q1 EARNINGS CALL > OVERVIEW Addressing a Large and Growing Opportunity ZoomInfo's Global TAM As of 2021 (2)(3)(4) At IPO (1) 1. 2. 3. $14Bn North America Intelligence 4. $13Bn North America Intelligence $12Bn International Intelligence $11Bn International Intelligence Z zoominfo $7Bn Engage $24Bn $6Bn Data Management $7Bn Chat $6Bn Recruiter $18Bn Conversation Intelligence $70Bn We calculated our TAM at IPO by estimating the total number of companies by employee size for companies with 1,000 or more employees (enterprise), companies with 100 to 999 employees (mid-market), and companies with 10 to 99 employees (SMBs) and applying the ACV to each respective company using internally generated data of actual customer spend by company size. The aggregate calculated value represents our estimated TAM. Data for numbers of companies by employee count is from our ZoomInfo platform that we have identified as relevant prospects for our platform. The ACV applied to the specifically identified number of companies by employee size is calculated by leveraging internal company data on current customer spend, which is concentrated on sales and marketing use cases today. For our companies with 1,000 or more employees, we have applied the average ACV of our top quartile of customers with 1,000 or more employees, who we believe have achieved broader implementation of our platform across their organizations. For companies with 100 to 999 employees and companies with 10 to 99 employees, we have applied an average ACV based on current spend for our customers in these bands. We estimate our TAM today with the same methodology as per footnote 1 above with the following changes: 1) SMBs sized based on companies 25 to 99 employees, 2) ACV excludes Engage, Everstring and Recruiter as those TAMs are being calculated separately and 3) applying North America and International ACV to applicable company counts by assuming 45% of North America ACV for International enterprise and 75% of North America ACV for mid-market and SMBs. Conversation Intelligence assumes 40% of ACV as per footnote 2 for enterprise, and 100% of ACV as per footnote 2 for mid-market and SMBs; Engage assumes 25% of ACV as per footnote 2 for enterprise, mid-market and SMBs; Data Management assumes 33% of ACV as per footnote 2 for enterprise and mid-market only; Recruiter assumes $100K ACV for enterprise (50 reps x $2,000/ rep), $8K ACV for mid-market (4 reps x $2,000/ rep), $2K ACV for SMBS (2 reps x $2,000/ rep); Chat assumes 25% of ACV as per footnote 2 for enterprise, mid-market and SMBs. Company counts based on ZoomInfo platform as of 5/13/2021; ACV values as of 3/31/2021. 10#11Q1 EARNINGS CALL > OVERVIEW Multiple Levers for Sustained Growth 8 Acquire new customers Z zoominfo Incremental penetration within enterprises Additional high-value solutions to existing customers 61.9 Expand Personas: MarketingOS, OperationsOS, TalentOS देती Expand to international markets Select acquisitions to complement platform 11#12Q1 EARNINGS CALL > OVERVIEW Recent New and Expansion Customers More than 25,000 Customers from Small, Mid-sized, and Large Organizations Across a Diverse Set of Industries affirm alteryx AVAYA eCornell HealthEquity® Nasdaq RAYMOND JAMESⓇ SmartRecruiters Z zoominfo S&P Global Market Intelligence Couchbase curve cvent DENTAL® KAPLAN M SANFORD ROSE ASSOCIATES" EXECUTIVE SEARCH MASTERCLASS Inc. mongoDB SHARP snyk verizon workday. Workiva 12#13Q1 EARNINGS CALL OVERVIEW Recent Platform Highlights SalesOS Released additional features that enable tracking of key contacts and account champions as they change roles; creating automated notifications, so ZoomInfo users can be first to act on new opportunities and manage the potential impact on their existing business. Updated the UX for the ReachOut extension including the addition of buying committees. John Miller started a new position at Salesforce Started a new job Present Salesforce Marketing Cloud Energy, Utilities & Chemic Previous Oracle Applications Sales Manager ... Jan 7,2022 Z zoominfo Eden Westwood is now Supervisor, Corporate Construction. @Changed Title Present Om Heartland Water Technology Supervisor, Corporate Construction Previous Jan 4, 2022 Heartland Water Technology Site Service Manager MarketingOS Launched Marketing OS, an account-based marketing (ABM) platform aligning sales and marketing teams in a unified system powered by ZoomInfo's world-class business-to- business data. MarketingOS helps demand generation and ABM teams target and convert leads into buyers through insight-driven orchestration and personalized engagement across multiple channels, including display and social advertising, email, and SMS. Added social media integrations, expanding digital advertising reach by pushing curated ZoomInfo audience to additional advertising channels. Marketingos Dashboard Overview 2M Fuel port 32K MIK 57K $0.37 e 28 Cerempe EN ADA 2.00% BTW UN n ww a OperationsOS Created Account Teams and Opportunity Teams within RingLead automatically setting the required access permissions for team members. Added the ability to use Territory Management rules from Salesforce to automatically create routing workflows and translate the models to apply to other objects. ● Route Workflows Test AccountTeams NoM0 Default Rule Load Match & C MA New Lead Behavior Create new Lead and do not convert or link to the Ownership Account Match Account Team O Assign Lead Owner as Matched Account Owner if the Team Role is not on Matched Account Step 2 Notification Send Success Salesforce Notification Emal Send Sack Nocation to Newly Assigned Deer Team1 Land Users Withows hand fibe Step 1 es for tjects to the des Send Emor Salesforce Notification Email ye Account Manager Top-Off Queue 13#14Q1 EARNINGS CALL OVERVIEW Recent Acquisitions Comparably Comparably adds a suite of popular SaaS solutions for employer branding and recruitment marketing combined with an employee review platform that reaches millions of candidates each month. With Comparably, TalentOS gives companies the ability to engage and hire candidates with much more sophistication and influence. TalentOS plus Comparably is a must have combination for any company recruiting in today's digital, remote-first work environment. • ZoomInfo's firmographic data and enrich data will significantly improve the overall value of landing on a Comparably page. Z zoominfo BA Dogpatch Advisors Dogpatch Advisors is a modern sales advisory consultancy that helps enterprises scale revenue operations, build sales playbooks, use data and insights to create and refine sales, and build outbound operations functions. The acquisition will enable ZoomInfo to further drive Enterprise and Strategic revenue through expanded customer playbooks that utilize more data and product categories. 14#15Q1 EARNINGS CALL > OVERVIEW Demos of Selected Product Functionality COMPARABLY Comparably Z zoominfo Engage Engage slack Workflows Slack Integration Chorus Chorus Mobile 15#16Q1 EARNINGS CALL > CASE STUDIES Customer Case Study - Demodesk The Results 2 Hours Saved per Rep per Day The Challenge Demodesk's sales team was looking to build a more efficient and streamlined outbound strategy. At the time, their sales team was wasting time manually researching prospects and uploading information into their CRM. As you might imagine, this process was tedious, time-consuming, and not always accurate. Stephen Williams, Director of Business Development at Demodesk, was looking to spearhead the process of finding a best- in-class solution to fuel his team's outbound efforts. "At the time our SDRs were manually researching accounts and contact details which was slowing down productivity. To scale, we needed data-driven insights and buying signals that could help us quickly identify contacts at best fit companies that are looking and ready to buy." After researching different solutions to fulfill the sales team's needs, Demodesk brought on ZoomInfo to help automate the sales processes and uncover new opportunities. Z zoominfo Demodesk About the Company Demodesk empowers every sales rep to become a top performer - by guiding sellers in real-time, automating non-selling tasks, engaging customers in the meeting and analyzing insights at scale. Demodesk automatically loads the perfect playbook into every customer meeting, so reps are equipped with the right slides or web apps to present, talk tracks and battle cards on the spot. Based in Munich, Germany, Demodesk's automation solutions are improving the lives of sales representatives across Europe, the U.K., and the United States. 16#17Q1 EARNINGS CALL > CASE STUDIES Customer Case Study - Demodesk The Results 2 Hours Saved per Rep per Day The Solution With ZoomInfo, Demodesk's sales representatives are now armed with actionable data and buying intelligence that allows them to seamlessly identify and strategically target accounts. As a result, Demodesk has been able to optimize and streamline their sales process, increasing the team's overall productivity. "We're able to get very specific with the criteria we use to build targeted lists within ZoomInfo. So, not only do we now know who we should be targeting, and how to get in touch with them but we have added intelligence on these accounts which allows us to personalize our outreach and have more relevant conversations." "And, with the added value of ZoomInfo's Intent data, we're able to understand which accounts are actively searching for a solution like ours. With this intelligence, we have a headstart against the competition and we're setting ourselves up for success by understanding which accounts to prioritize." Additionally, Demodesk has leveraged ZoomInfo's integrations with Salesforce and their Sales Automation software in order to further automate their internal processes. "With ZoomInfo's Salesforce integration, we're able to seamlessly infuse business intelligence across our sales and marketing workflows. As a result, our teams are more aligned and have more time to sell and market more effectively with greater insights." Z zoominfo The Results Partnering with ZoomInfo has enabled the teams at Demodesk to better prospect and target the right customers with the best messaging. "Our representatives are required to upload five new accounts and 25 new contacts into our CRM every day. What once took two to three hours per sales rep, has now been reduced down to only 10 to 15 minutes. Not only have we saved a significant amount of time, but the quality of these conversations is much greater thanks to the insights we get from ZoomInfo's Scoops and Intent data." Access to ZoomInfo's robust database has also enabled Demodesk's Marketing team to enrich trade show lists and fill in the gaps to help make their marketing campaigns much more relevant and personalized. As a result, all of the teams across the organization have more time in their day to generate, nurture, and convert more opportunities in their sales funnel. "Since bringing on ZoomInfo, we've significantly shortened the time it takes our reps to source data. ZoomInfo has been a great way of being able to not only manage our accounts in a way of making sure they are fully enriched, but also in knowing who we should be speaking to within an organization. As we continue to use ZoomInfo, we're excited to develop an even deeper understanding of the businesses we sell," said Stephen. 17#18Q1 EARNINGS CALL > CASE STUDIES Customer Case Study - Elite Interactive Solutions The Results 30K in Recurring Revenue Every Month The Challenge Elite Interactive Solutions (EIS) was looking to build a go-to-market strategy that would enable them to successfully bring their products to market and make a name for themselves within the Security and Crime Prevention industries. Developing an efficient and effective go-to-market strategy requires an in-depth understanding of your total addressable market as well as a tech stack that will enable you to identify, target, and engage with key prospects. However, at the time, this was something Elite Interactive Solutions was lacking. "We didn't have a mature tech stack, nor did we have a successful outbound strategy in place," explains Brandon Crookshanks, Security Consultant at Elite Interactive Solutions. "We relied heavily on lists that we purchased from a handful of different vendors. However, they all had one thing in common and that was poor data quality." "Not only were we looking for a way to minimize waste within our existing sales processes and build a more robust sales strategy, but we also were looking to foster greater alignment with our peers on the marketing side of the house. Bringing all of our go-to-market tools and intelligence under one roof was really important to us as an organization. Being able to support both teams with one consolidated tech stack would be critical for our success." Z zoominfo GLITC INTERACTIVE SOLUTIONS INC About the Company Elite Interactive Solutions is an expert at Crime Prevention by transforming the security guard and asset monitoring industries by providing advanced machine learning algorithms. Elite's mission is to enhance the safety, security and bottom line of companies currently facing expensive security costs and loss. Elite's clients come from many industry verticals such as, Multi-Family Housing, Commercial Property Owners and Managers, Logistics Services, Utilities, Shopping Malls, Warehouses, Auto Dealerships, Industrial facilities, High-end Retail locations and beyond. 18#19Q1 EARNINGS CALL > CASE STUDIES Customer Case Study - Elite Interactive Solutions The Results 30K in Recurring Revenue Every Month The Solution "After evaluating different competitors in the space, we decided to move forward with ZoomInfo's unified system of data, insights, software, and integrations to power our go-to-market strategy," explained Brandon. By partnering with ZoomInfo, EIS has been able to unify and streamline its tech stack, create alignment amongst leadership, and drive revenue. "We're leveraging all aspects of ZoomInfo, from their Advanced Search functionality and Buyer Intent signals to their data enrichment capabilities and their sales engagement technology," said Brandon. Specifically, with access to ZoomInfo's Intent signals, EIS's sales and marketing teams are able to prioritize prospects searching for solutions similar to theirs. "In the past, we had struggled to create meaningful pipeline but with the Intent data and insights we get from ZoomInfo, we're able to identify accounts that are searching for solutions like ours in real-time. We went from shooting in the dark to knowing exactly who we should be targeting and when they are most primed to buy. And, with Engage we have the technology to accelerate and automate that targeted outreach." ZoomInfo's Sales Engagement technology, Engage, combines ZoomInfo data with automation to make communication easier, faster, and more effective than ever before. "With it's auto dialing capabilities, and the ability to develop multi-touch prospecting campaigns, Engage has helped our sales reps streamline their prospecting efforts and connect with buyers at scale," explained Brandon. By bringing their go-to-market strategy under one umbrella, Elite Interactive Solutions is now able to streamline workflows, prospect more efficiently, and ensure their CRM is up to date with the best B2B data out there. "With Enrich, all of the data within our CRM is automatically appended and refreshed on an ongoing basis. This has helped further strengthen the alignment between sales and marketing, ensuring the data we're working off of is accurate and up to date, no matter where it originated from," explains Brandon. Z zoominfo The Results With access to ZoomInfo's all-in-one operating system, Elite Interactive Solutions has completely transformed their go-to-market strategy and are experiencing impressive results. "Over the past twelve months, we've closed an average of 1 deal per month with an average contract value of $190,000 with ZoomInfo. Of those 12 high-value deals that have closed in the last year, none of them would have closed without access to ZoomInfo," explained Brandon. "ZoomInfo is bringing in over $30,000 in recurring revenue every month for us." Before ZoomInfo, Elite Interactive Solutions had to manually research all of the companies that they hoped to target. Now, their sales reps have the freedom to automate much of their processes and spend more time on revenue generating activities. "The biggest benefit to having ZoomInfo is knowing who to talk to, when to talk to them, and how to talk to them. It's an incredibly powerful resource." 19#20Q1 EARNINGS CALL > CASE STUDIES Video Case Studies - Esker & Litmus Z zoominfo ESKER Esker litmus Litmus 20#21Q1 2022 Financial Results Z zoominfo#22Q1 EARNINGS CALL > FINANCIAL RESULTS Financial Results Overview Henry Schuck Founder and Chief Executive Officer Cameron Hyzer Chief Financial Officer Z zoominfo Financial Results "ZoomInfo delivered a great start to the year as reflected in our first quarter results, which include another quarter of strong revenue growth and free cash flow," said Henry Schuck, ZoomInfo Founder and CEO. "Customers are embracing the ZoomInfo RevOS platform, with more companies using the data, insights, automation and workflows to grow their business and efficiently go-to-market." 2022 Guidance² We are increasing our financial guidance for the year. For FY 2022 we expect revenue of $1.06 - $1.07 billion and Adjusted Operating Income in the range of $418 - $424 million, up from our prior guidance of revenue in the range of $1.01 - $1.02 billion and Adjusted Operating Income in the range of $405 - $415 million. 1. As of or through March 31, 2022 as applicable 2. Guidance as of 5/2/2022. We do not provide a quantitative reconciliation of the forward-looking non-GAAP financial measures included in this presentation to the most directly comparable GAAP measures due to the high variability and difficulty to predict certain items excluded from these non-GAAP financial measures; in particular, the effects of stock-based compensation expense, taxes and amounts under the exchange tax receivable agreement, deferred tax assets and deferred tax liabilities, and restructuring and transaction expenses. We expect the variability of these excluded items may have a significant, and potentially unpredictable, impact on our future GAAP financial results. >25,000 Paying Customers¹ >1,623 Customers with > $100k in ACV¹ 2022 Guidance (as of 5/2/2022) $1.06 - $1.07 billion FY 2022 Revenue $418 - $424 million FY 2022 Adjusted Operating Income² 22#23Q1 EARNINGS CALL > FINANCIAL RESULTS Q1 2022 Financial Summary (Unaudited) ($M, except per share amounts and percent figures) Revenue Operating Income Operating Income Margin Net Income Per Share (Diluted) Cash Flow from Operating Activities Quarterly Results $241.7 $32.4 13% $0.02 $105.0 GAAP Increase YoY 58% 16% 13% Adjusted Operating Income Z zoominfo 1. GAAP to non-GAAP reconciliations available in the non-GAAP reconciliations section of this presentation Adjusted Operating Income Margin Adjusted Net Income Per Share (Diluted) Unlevered Free Cash Flow Non-GAAP(1) Quarterly Results $95.7 39% $0.18 $125.9 Increase YoY 45% 29% 23#24Q1 EARNINGS CALL > FINANCIAL RESULTS GAAP Revenue Growth ($M) 58% Z zoominfo $153.3 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 GAAP Revenue $241.7 || Q4 2021 Q1 2022 1. Organic Revenue excludes revenue from products acquired within the last 12 months. Products acquired within the last 12 months contributed $13.0 million in revenue for the three months ended March 31, 2022. Q1 2022 58% GAAP Revenue Growth 49% Organic Revenue Growth¹ 24#25Q1 EARNINGS CALL > FINANCIAL RESULTS Adjusted Operating Income ($M) and Margin(1) 45% Adjusted Operating Income (1) $66.1 43% $95.7 Q1 2020 Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Q1 2022 Adjusted Operating Income Margin (1) 39% Z zoominfo 1. GAAP to non-GAAP reconciliations available in the non-GAAP reconciliations section of this presentation Q1 2022 39% Adjusted Operating Income Margin(¹) 45% YOY Growth in Adjusted Operating Income(1) 25#26Q1 EARNINGS CALL > FINANCIAL RESULTS Unlevered Free Cash Flow (uFCF) and uFCF Conversion (1)(2) Q1 2020 Q2 2020 Z zoominfo 29% $97.5 148% Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 Q4 2021 Unlevered Free Cash Flow (1) uFCF Conversion (1) (2) $125.9 132% Q1 2022 1. GAAP to non-GAAP reconciliations available in the non-GAAP reconciliations section of this presentation 2. Unlevered Free Cash Flow Conversion defined as Unlevered Free Cash Flow divided by Adjusted Operating Income Q1 2022 132% Unlevered free cash flow conversion (1)(2) 52% Unlevered Free Cash Flow Margin(¹) 26#27Q1 EARNINGS CALL > FINANCIAL RESULTS Balance Sheet Highlights and Net Leverage ($M, except Leverage Ratios) Total contractual maturity of outstanding indebtedness Cash, cash equivalents, restricted cash, and short-term investments Trailing Twelve Months (TTM) Adjusted EBITDA(1) Trailing Twelve Months (TTM) Cash EBITDA(1) Total Net Leverage Ratio (Adjusted EBITDA)(1)(2) Total Net Leverage Ratio (Cash EBITDA)(1)(3) Total Unearned Revenue Current remaining performance obligations Total remaining performance obligations Z zoominfo As of December 31, 2021 $1,250.0 $332.5 $318.2 $444.6 2.9x 2.1x $364.2 $671.5 $864.4 As of March 31, 2022 $1,250.0 $412.6 $348.6 $475.6 2.4x 1.8x $406.1 $715.0 $917.6 1. GAAP to non-GAAP reconciliations available in the non-GAAP reconciliations section of this presentation 2. Defined as total contractual maturity of outstanding indebtedness less cash and cash equivalents, restricted cash, and short-term investments divided by TTM Adjusted EBITDA, expressed as a ratio 3. Defined as total contractual maturity of outstanding indebtedness less cash and cash equivalents, restricted cash, and short-term investments divided by TTM Cash EBITDA (defined as Consolidated EBITDA in our Credit Agreements), expressed as a ratio 27#28Q1 EARNINGS CALL > FINANCIAL RESULTS Guidance (as of May 2, 2022)(¹) GAAP Revenue Adjusted Operating Income(1) Adjusted Net Income Per Share(¹) Unlevered Free Cash Flow(1) Weighted Average Shares Outstanding Z zoominfo Q2 2022 $253 $255 million $98 $100 million $0.17 - $0.18 Not guided 410 million FY 2022 (as of 2/15/2022) $1.01 $1.02 billion $405 $415 million $0.71 - $0.73 $415 $435 million 410 million FY 2022 (as of 5/2/2022) $1.06 $1.07 billion $418 - $424 million $0.75 - $0.77 $435 $445 million 411 million 1. We do not provide a quantitative reconciliation of the forward-looking non-GAAP financial measures included in this presentation to the most directly comparable GAAP measures due to the high variability and difficulty to predict certain items excluded from these non-GAAP financial measures; in particular, the effects of stock-based compensation expense, taxes and amounts under the exchange tax receivable agreement, deferred tax assets and deferred tax liabilities, and restructuring and transaction expenses. We expect the variability of these excluded items may have a significant, and potentially unpredictable, impact on our future GAAP financial results. 28#29Non-GAAP Reconciliations Z zoominfo#30Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Non-GAAP Financial Measures To supplement our consolidated financial statements presented in accordance with GAAP, this presentation contains non-GAAP financial measures, including Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income, Adjusted Net Income Per Share, Unlevered Free Cash Flow, Unlevered Free Cash Flow Conversion, TTM Adjusted EBITDA, Net Leverage Ratio, Adjusted Gross Margin, Adjusted Sales and Marketing Expense, Adjusted Research and Development Expense, and Adjusted General and Administrative Expense. We believe these non-GAAP measures are useful to investors in evaluating our operating performance because they eliminate certain items that affect period- over-period comparability and provide consistency with past financial performance and additional information about our underlying results and trends by excluding certain items that may not be indicative of our business, results of operations, or outlook. Non-GAAP financial measures are not meant to be considered in isolation or as a substitute for the comparable GAAP measures, but rather as supplemental information to our business results. This information should be read only in conjunction with our consolidated financial statements prepared in accordance with GAAP. There are limitations to these non-GAAP financial measures because they are not prepared in accordance with GAAP and may not be comparable to similarly titled measures of other companies due to potential differences in methods of calculation and items or events being adjusted. In addition, other companies may use different measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. A reconciliation is provided at the end of this presentation for each historical non-GAAP financial measure to the most directly comparable financial measure stated in accordance with GAAP. We do not provide a quantitative reconciliation of the forward-looking non-GAAP financial measures included in this presentation to the most directly comparable GAAP measures due to the high variability and difficulty to predict certain items excluded from these non-GAAP financial measures; in particular, the effects of stock-based compensation expense, taxes and amounts under the exchange tax receivable agreement, deferred tax assets and deferred tax liabilities, and restructuring and transaction expenses. We expect the variability of these excluded items may have a significant, and potentially unpredictable, impact on our future GAAP financial results. We define organic revenue growth as current period revenue less revenue from products acquired within the last 12 months divided by prior period revenue. We define Adjusted Operating Income as income from operations plus (i) impact of fair value adjustments to acquired unearned revenue, (ii) amortization of acquired technology and other acquired intangibles, (iii) equity-based compensation expense, (iv) restructuring and transaction-related expenses, and (v) integration costs and acquisition-related compensation. We exclude the impact of fair value adjustments to acquired unearned revenue and amortization of acquired technology and other acquired intangibles, as well as equity-based compensation, because these are non-cash expenses or non-cash fair value adjustments and we believe that excluding these items provides meaningful supplemental information regarding performance and ongoing cash-generation potential. We exclude restructuring and transaction-related expenses, as well as integration costs and acquisition-related compensation, because such expenses are episodic in nature and have no direct correlation to the cost of operating our business on an ongoing basis. Adjusted Operating Income is presented because it is used by management to evaluate our financial performance and for planning and forecasting purposes. Additionally, we believe that it and similar measures are widely used by securities analysts and investors as a means of evaluating a company's operating performance. Adjusted Operating Income should not be considered as an alternative to operating income as an indicator of operating performance. We define Adjusted Operating Income Margin as Adjusted Operating Income divided by the sum of revenue and the impact of fair value adjustments to acquired unearned revenue. We define Adjusted Net Income as Adjusted Operating Income less (i) interest expense, net (ii) other (income) expense, net, excluding TRA liability remeasurement expense (benefit) and (iii) income tax expense (benefit) including incremental tax effects of adjustments to arrive at Adjusted Operating Income and current tax benefits related to the TRA. Adjusted Net Income is presented because it is used by management to evaluate our financial performance and for planning and forecasting purposes. Additionally, we believe that it and similar measures are widely used by securities analysts and investors as a means of evaluating a company's operating performance. Adjusted Net Income should not be considered as an alternative to cash flows from operating activities as a measure of liquidity or as an alternative to operating income or net income as indicators of operating performance. Z zoominfo 30#31Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Non-GAAP Financial Measures We define Unlevered Free Cash Flow as net cash provided from operating activities less (i) purchases of property and equipment and other assets, plus (ii) cash interest expense, (iii) cash payments related to restructuring and transaction- related expenses, and (iv) cash payments related to integration costs and acquisition-related compensation. We define Unlevered Free Cash Flow Margin as Unlevered Free Cash Flow divided by the sum of revenue and the amortization of the impact of fair value adjustments to acquired unearned revenue. Unlevered Free Cash Flow is presented because it is used by management to evaluate our financial performance and for planning and forecasting purposes. Additionally, we believe that it and similar measures are widely used by securities analysts and investors as a means of evaluating a company's operating performance. Unlevered Free Cash Flow should not be considered as an alternative to cash flows from operating activities as a measure of liquidity or as an alternative to operating income or net income as indicators of operating performance. Unlevered Free Cash Flow does not represent residual cash flow available for discretionary expenditures since, among other things, we have mandatory debt service requirements. We define Unlevered Free Cash Flow Conversion as Unlevered Free Cash Flow divided by Adjusted Operating Income. We define Net Leverage Ratio to Adjusted EBITDA as total contractual maturity of outstanding indebtedness less cash and cash equivalents, restricted cash, and short-term investments, divided by trailing twelve months Adjusted EBITDA. EBITDA is defined as earnings before debt-related costs, including interest and loss on debt modification and extinguishment, provision for taxes, depreciation, and amortization. Management further adjusts EBITDA to exclude certain items of a significant or unusual nature, including other (income) expense, net, impact of certain non-cash items, such as fair value adjustments to acquired unearned revenue and equity-based compensation, restructuring and transaction- related expenses, and integration costs and acquisition-related compensation. We exclude these items because these are non-cash expenses or non-cash fair value adjustments, which we do not consider indicative of performance and ongoing cash-generation potential or are episodic in nature and have no direct correlation to the cost of operating our business on an ongoing basis. Adjusted EBITDA is presented because it is used by management to evaluate our financial performance and for planning and forecasting purposes. Additionally, we believe that it and similar measures are widely used by securities analysts and investors as a means of evaluating a company's operating performance. Adjusted EBITDA should not be considered as an alternative to cash flows from operating activities as a measure of liquidity or as an alternative to operating income or net income as indicators of operating performance. Net Leverage Ratio should not be considered as an alternative to other ratios of GAAP earnings to indebtedness. We define Adjusted Gross Profit as gross profit plus (i) equity-based compensation expense included as part of Cost of Service, and (ii) integration and deal related compensation included as part of Cost of Service, and (iii) amortization of acquired technology. Adjusted Gross Margin is Adjusted Gross Profit divided by the sum of revenue and the impact of fair value adjustments to acquired unearned revenue. define Adjusted Sales and Marketing Expense as sales and marketing expense less (i) integration and deal related compensation expense, and (ii) the equity-based compensation expense included as part of sales and marketing expense. Adjusted Sales and Marketing as a percentage of Adjusted Revenue is Adjusted Sales and Marketing divided by the sum of revenue and the impact of fair value adjustments to acquired unearned revenue. We define Adjusted Research and Development Expense as research and development expense less (i) integration and deal related compensation expense, and (ii) the equity-based compensation expense included as part of research and development expense. Adjusted Research and Development as a percentage of Adjusted Revenue is Adjusted Research and Development divided by the sum of revenue and the impact of fair value adjustments to acquired unearned revenue. We define Adjusted General and Administrative Expense as general and administrative expense, less (i) integration and deal related compensation expense, and (ii) the equity-based compensation expense included as part of general and administrative expense. Adjusted General and Administrative as a percentage of Adjusted Revenue is Adjusted General and Administrative divided by the sum of revenue and the impact of fair value adjustments to acquired unearned revenue. Net revenue retention is an annual metric that we calculate based on customers that were contracted for services at the beginning of the year, or, for those that became customers through an acquisition, at the time of the acquisition. Net revenue retention is calculated as: (a) the annual contract value ("ACV") for those customers at the end of the year divided by (b) ZoomInfo ACV at the beginning of the year plus the ACV of acquired companies at the time of acquisition. Z zoominfo 31#32Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation from GAAP Net Income (Loss) to Adjusted Operating Income ($M except percent figures) Net income (loss) Add (less): Expense (benefit) from income taxes Add: Interest expense, net Add: Loss on debt modification and extinguishment Add (less): Other expense (income), net Income (loss) from operations Add: Impact of fair value adjustments to acquired unearned revenue Add: Amortization of acquired technology Add: Amortization of other acquired intangibles Add: Equity-based compensation Add: Restructuring and transaction-related expenses Add: Integration costs and acquisition-related expenses Adjusted Operating Income Revenue Impact of fair value adjustments to acquired unearned revenue Revenue for adjusted operating margin calculation Adjusted Operating Income Margin Z zoominfo Q1 2021 $(33.9) 49.7 6.5 5.9 (0.2) 28.0 0.6 6.7 4.8 18.1 4.4 3.4 $66.1 153.3 0.6 154.0 43% Q1 2022 $6.2 13.0 11.8 1.4 32.4 1.1 11.2 5.3 42.5 2.5 0.6 $95.7 241.7 1.1 242.8 39% 32#33Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation from GAAP Net Income (Loss) to Cash EBITDA ($M) Net income (loss) Add (less): Expense (benefit) from income taxes Add: Interest expense, net Add: Loss on debt modification and extinguishment Add: Depreciation Add: Amortization of acquired technology Add: Amortization of other acquired intangibles EBITDA Add (less): Other expense (income), net Add: Impact of fair value adjustments to acquired unearned revenue Add: Equity-based compensation expense Add: Restructuring and transaction related expenses (excluding depreciation) Add: Integration costs and acquisition-related expenses Adjusted EBITDA Add: Unearned revenue adjustment Add: Pro forma cost savings Add (less): Cash rent adjustment Add (less): Pre-Acquisition EBITDA Add (less): Other lender adjustments Cash EBITDA (1) Z zoominfo 1. Defined as Consolidated EBITDA in our Credit Agreements Trailing Twelve Months as of March 31, 2021 $(64.4) 54.8 51.2 18.6 10.9 24.4 18.9 114.5 (15.5) 1.9 128.4 14.0 9.4 252.6 83.3 1.0 (1.1) $335.7 Trailing Twelve Months as of March 31, 2022 $135.0 (30.6) 49.2 1.8 13.2 39.8 20.8 229.2 (37.6) 5.0 117.3 21.0 13.7 348.6 128.9 1.9 (0.3) (4.7) 1.2 $475.6 33#34Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation of Non-GAAP Leverage Ratios ($M, except Leverage Ratios) Total Net Leverage Ratio (Adjusted EBITDA) Total contractual maturity of outstanding indebtedness Less: Cash and cash equivalents, restricted cash, and short-term investments Net Debt Trailing Twelve Months (TTM) Adjusted EBITDA Total Net Leverage Ratio (Adjusted EBITDA) Total Net Leverage Ratio (Cash EBITDA) Total contractual maturity of outstanding indebtedness Less: Cash and cash equivalents, restricted cash, and short-term investments Net Debt Trailing Twelve Months (TTM) Cash EBITDA(¹) Total Net Leverage Ratio (Cash EBITDA) Z zoominfo 1. Defined as Consolidated EBITDA in our Credit Agreements As of December 31, 2021 $1,250.0 332.5 917.5 318.2 2.9x $1,250.0 332.5 917.5 444.6 2.1x As of March 31, 2022 $1,250.0 412.6 837.4 348.6 2.4x $1,250.0 412.6 837.4 475.6 1.8x 34#35Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation from GAAP Operating Cash Flow to Unlevered Free Cash Flow ($M except percent figures) Cash flow from operating activities Interest paid in cash Purchases of property and equipment and other assets Restructuring and transaction-related expenses paid in cash Integration costs and acquisition-related compensation paid in cash Unlevered Free Cash Flow Adjusted Operating Income Unlevered Free Cash Flow conversion Revenue Impact of fair value adjustments to acquired unearned revenue Revenue for uFCF margin calculation Unlevered Free Cash Flow Margin Z zoominfo Q1 2021 $93.0 6.8 (4.7) 1.1 1.3 $97.5 66.1 148% 153.3 0.6 153.9 63% Q1 2022 $105.0 19.5 (6.6) 8.0 0.0 $125.9 95.7 132% 241.7 1.1 242.8 52% 35#36Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation from GAAP Net Income (Loss) to Adjusted Net Income Per Share Three months ended March 31, 2022 ($M) Revenue Cost of service Amortization of acquired technology Gross profit Sales and marketing Research and development General and administrative Amortization of other acquired intangibles Restructuring and transaction related expenses Total operating expenses Income (loss) from operations Interest expense, net Loss on debt modification and extinguishment Other (income) expense, net, excluding TRA liability remeasurement (benefit) expense Income (loss) before income taxes Income tax expense (benefit) Net income (loss) Diluted net income (loss) per share Class A WASO- diluted (in millions) Z zoominfo GAAP $241.7 32.8 11.2 197.7 84.1 45.6 27.8 5.3 2.5 165.3 $32.4 11.8 0.0 1.4 19.2 13.0 $6.2 $0.02 403 Margin% 14% 5% 82% 35% 19% 12% 13% 3% Equity-based Compensation $- (4.6) 4.6 (16.1) (15.6) (6.2) (37.9) $42.5 42.5 $42.5 Amortization of Acquired Intangibles and Fair Value Adjustments from Acquisitions $1.1 (11.2) 12.3 (5.3) (5.3) $17.6 I T $17.6 $17.6 Transaction Related Expenses $- (0.1) 0.1 (0.1) (0.3) (0.1) (2.5) (3.0) $3.1 3.1 $3.1 Tax Impacts of Adjustments and TRA ||||||||| $- (0.9) 0.9 (3.5) $4.4 As Adjusted $242.8 28.1 214.7 67.8 29.8 21.5 119.1 $95.7 11.8 0.6 83.3 9.5 $73.8 $0.18 409 Adjusted Margin% 12% 88% 28% 12% 9% 39% 30% 36#37Q1 EARNINGS CALL > NON-GAAP FINANCIAL MEASURES Reconciliation from GAAP Net Income (Loss) to Adjusted Net Income Per Share Three months ended March 31, 2021 ($M) Revenue Cost of service Amortization of acquired technology Gross profit Sales and marketing Research and development General and administrative Amortization of other acquired intangibles Restructuring and transaction related expenses Total operating expenses Income from operations Interest expense, net Loss on debt modification and extinguishment Other (income) expense, net, excluding TRA liability remeasurement (benefit) expense Income (loss) before income taxes Income tax expense (benefit) Net income (loss) Diluted net income (loss) per share Class A WASO- diluted (in millions) Z zoominfo GAAP $153.3 21.4 6.7 125.2 48.8 20.4 18.8 4.8 4.4 97.2 $28.0 6.5 5.9 (0.2) 15.8 49.7 $(33.9) $0.02 192 Margin% 14% 4% 82% 32% 13% 12% 18% (22)% Equity-based Compensation $- (3.5) 3.5 (8.4) (2.6) (3.6) (14.6) $18.1 - 18.1 $18.1 Amortization of Acquired Intangibles and Fair Value Adjustments from Acquisitions $0.6 (6.7) 7.3 (4.8) (4.8) $12.1 12.1 - $12.1 Transaction Related Expenses $- (0.5) 0.5 (0.6) (1.8) (0.5) (4.4) (7.3) $7.8 (5.9) 13.7 $13.7 Tax Impacts of Adjustments and TRA $- ||||||||||||| $- (40.6) $40.6 As Adjusted $153.9 17.4 136.5 39.9 16.0 14.7 70.6 $66.1 6.5 (0.2) 59.8 9.1 $50.7 $0.13 404 Adjusted Margin% 11% 89% 26% 10% 10% 43% 33% 37