#1Xometry Q1 2022 Earnings Presentation May 11, 2022 © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential C 19 041 1#2Safe Harbor This presentation contains forward-looking statements. All statements other than statements of historical facts contained in this presentation, including statements regarding the Company's future results of operations and financial position, business strategy, ability to maintain existing, and establish new, strategic partnerships or other arrangements with buyers or suppliers on the Company's platform, the potential market size for the Company's platform and other solutions and plans and objectives of management for future operations are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause the Company's actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified and some of which are beyond the Company's control, you should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in the Company's forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by applicable law, the Company does not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise. This presentation also contains estimates and other statistical data from both independent third parties and the Company relating to market size and growth and other data about the Company's industry. This data involves a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. While the Company believes the estimates and statistical data from these independent third parties are reliable as of the date of this presentation, it has not independently verified, and makes no representation as to the adequacy, fairness, accuracy or completeness of any information obtained from these third parties. Neither the Company nor any other person makes any representation as to the accuracy or completeness of such data or undertakes any obligation to update such data after the date of this presentation. In addition, projections, assumptions and estimates of the Company's future performance and the future performance of the markets in which the Company operates are necessarily subject to a high degree of uncertainty and risk. In light of the foregoing, you are urged not to rely on any forward-looking statement or third-party data in reaching any conclusion or making any investment decision about any securities of the Company. This presentation contains non-GAAP financial measures and key metrics relating to the Company's past performance. These non-GAAP financial measures are presented in addition to, and not as a substitute for or superior to, measures of financial performance prepared in accordance with U.S. GAAP. There are a number of limitations related to the use of these non-GAAP financial measures versus its nearest GAAP equivalents. For example, other companies may calculate non-GAAP financial measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of the Company's non-GAAP financial measures as a tool for comparison. The Company has provided a reconciliation of measures to the most directly comparable GAAP measures, which is available in the Appendix. Xometry © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 2#3Q1 2022 Key Financial Highlights Xometry $83.7M Q1 Revenue +90% YoY Growth $64.4M Marketplace $19.3M Supplier Services $43.9 $50.6 1Q21 2Q21 3Q21 21,345 $56.7 30,683 Q1 Active Buyers (2) 44% YOY Growth 23,942 26,187 $67.1 4Q21 1Q22 28,130 $83.7 1Q21 Q4 2021 KPI, Excludes Thomas 30,683 2Q21 3Q21 4Q21 1Q22 $32.9M Q1 Gross Profit +235% YoY Growth 39.4% Q1 Gross Margin $9.8 $11.9 412 $14.5 1Q21 2Q21 3Q21 4Q21 1Q22 790 Q1 Accounts with LTM Spend of at least $50,000(4) +92% YoY Growth 508 $20.9 603 1Q21 2Q21 3Q21 Q4 2021 KPI, Excludes Thomas $32.9 701 790 4Q21 1Q22 $(12.7M) Q1 Adjusted EBITDA(¹) (15.2)% Q1 Adjusted EBITDA margin (20.1)% $(8.8) 1Q21 (17.9)% 95% $(9.1) 2Q21 (17.7)% 95% $(10.0) 3Q21 94% Q1 Revenue from Xometry Existing Accounts (3) 95% (17.7)% 95% $(11.9) 4Q21 94% 1Q21 2Q21 3Q21 4Q21 1Q22 Q4 2021 KPI, Excludes Thomas (1) We define Adjusted EBITDA as net income (loss) excluding interest income (expense), income tax (expense) benefit, and certain other non-cash or non-recurring items impacting net loss from time to time, principally comprised of depreciation and amortization, stock-based compensation, transaction costs, charitable contributions, income from unconsolidated joint venture and impairment charges. (2) We define Active Buyers as the number of buyers who have made at least one purchase on our marketplace during the last twelve months. (3) We define a Xometry existing account as an account where at least one buyer has made a purchase on our marketplace. (4) We define Accounts with Last Twelve-Month, or LTM, Spend of At Least $50,000 as an account that has spent at least $50,000 on our marketplace in the most recent twelve-month period. © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential (15.2)% $(12.7) 1Q22 3#4Significant Value Creation from Digitizing Markets 00000 @ a Auto Xometry Travel Retail Payments Uber Transportation X Manufacturing © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 4#5$2+ Trillion Highly Inefficient Market Xometry Buyer Pain Points 8 Highly fragmented, regionalized base of manufacturers; 75% of American manufacturers have fewer than 20 employees Difficulty finding optimal prices. and lead times in an efficient manner Urgent need for resilient and localized supply chains Increasing focus on ESG issues, from reducing emissions to improving supplier diversity Supplier Pain Points Geographic isolation and limited access to customers Antiquated business development practices Higher cost structure intrinsic to small businesses Capital constrained © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 5#6Traditional Sourcing is Slow, Costly, and Inefficient Xometry Buyer Custom Design Supplier Find Suppliers Supplier Negotiate Final Price 1000 Award /Receive Opportunity Diligence Sales & Marketing RFQ Respond/ Review RFQ Send/Receive RFQ Review & Compare RFQs Wait for Product Wait for RFQ Decision Ship/ Receive Procure Supplies & Tools Product Produce Product Make Payment wait to Receive Payment © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 6#7Xometry's Marketplace is the Digital Solution For Buyers and Suppliers of Manufacturing Services Xometry Buyer (Marketplace Revenue) =888 PAT Instant Pricing and Lead Times Certified Quality and Flexibility Access to Massive Network with Extensive Capabilities $ Highly Scalable Democratize Access X Al |||| Al-Driven Ⓡ Cloud- Based Supplier (Supplier Services Revenue) Access to High Quality Work Financial Services Marketing Services, Operating Software, Less Expensive Tools & Materials $ LA X © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 7#8Xometry Instant pricing and lead time quotes for buyers and suppliers in seconds 5 3D Geometry & Feature Recognition enhancing pricing accuracy and identifying issues X Artificial Intelligence is at the Heart of Our Platform Competitive Moat with Millions of Data Inputs and Years of Continuous Improvement Deep Learning predicting longevity, frequency and lifetime value for buyers and suppliers Matching of buyers and suppliers based on order features and supplier scoring. Intelligent cross-selling of supplier services © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 8#9Extensible Marketplace Xometry's marketplace supports major industries and manufacturing processes across North America, Europe, and Asia Xometry Prototyping Test Parts Production End Market Parts The Xometry marketplace is a one-stop shop Aerospace Xometry EBB 鷓 Medical Industrial Automotive कती Retail Robotics and Tech Government © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 9#10Extensible Marketplace Xometry's marketplace supports production across many industries and manufacturing processes Agriculture Customer Industry Aerospace and Defense Medical Devices Retail Electric Vehicles Oil and Gas Automotive Xometry Multi-technology and assembly CNC Injection molding and assembly Injection molding Injection molding Process Die casting Metal stamping Description Full electro-mechanical robotic assemblies Landing gear components Hospital-use device to assist in medical procedures Shopping carts Seat components Gas meter components Electronic control system enclosures © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 10#11Realizing an Effective Land and Expand Strategy Annual spend ($ in thousands) Xometry Global E-Commerce Leader 278% CAGR $2 2015 $22 Electric Vehicle Manufacturer 137% CAGR 2017 Note: Above examples are not necessarily indicative of results expected for any given customer $4,459 $5 2015 2021 Aerospace and Defense Co. 218% CAGR $701 2021 $4,950 2021 Government Agency 555% CAGR $2 2017 Robotics Co. 177% CAGR $205 2019 $5 $3,427 2016 2021 $1,569 Global Pharmaceutical Co. 204% CAGR 2021 $1,385 2021 © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 11#12Marketplace Focus Through Product Innovation FOUNDED X Xometry CAD INTEGRATIONS BS SOLIDWORKS AI-POWERED MARKETPLACE 2013 - 2018 XOMETRY SUPPLIES SANDVIK VIKING DRILL & TOOL MITSUBISHI OUa MATERIALS FINANCIAL SERVICES stripe XOMETRY EUROPE IPO: XMTR Nasdaq ERP INTEGRATIONS SAP Ariba 2019-2021 INDUSTRIAL SOURCING & MARKETING SERVICES II THOMAS MANUFACTURING (OS) Factory Four INSTANT QUOTE THOMASNET INTEGRATION XOMETRY ASIA XOMETRY EVERYWHERE 2022 © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 12#13Resulting in Expanded Marketplace Use 790 Q1 Accounts with LTM Spend of at Least $50K² Q1 2022 KPI, Excludes Thomas 30,683 Q1 Active Buyers¹ Q1 2022 KPI, Excludes Thomas 21,345 23,942 26,187 1Q21 2Q21 3Q21 28,130 30,683 +44% YOY Growth 3Q21 4Q21 1Q22 412 508 Xometry months to manufacture a product or buy tools or supplies. 603 1Q21 2Q21 3Q21 701 790 +92% YOY Growth 4Q21 1Q22 1. We define Active Buyers as the number of buyers who have made at least one purchase on our marketplace in the twelve months. 2. We define Accounts with Last Twelve-Month, or LTM, Spend of at Least $50,000 as an account that has spent at least $50,000 on our marketplace in the last twelve months. 3. For the year ended December 31, 2021. We define Active Sellers as the sellers that have used our platform at least once during the last twelve 774 2,010 Active Sellers³ 2019 1,410 2020 2,010 +43% YOY Growth 2021 © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 13#14Acquisition of Thomas Xometry X + I On December 9, 2021, Xometry completed the $300 million acquisition of Thomas in a combination of cash and stock. II THOMAS™ A leading platform for industrial product sourcing, supplier selection, and marketing services 1.4 Million Registered Users¹ in North America 93% Fortune 1000 Source Suppliers on Thomas 1. We define Registered Users as unique individuals that complete a registration form on the Thomasnet.com platform. 2. We define Suppliers as businesses with paid or freemium listings on the Thomasnet.com platform. 3. We define Annual Sourcing Sessions as total estimated user sessions on the Thomasnet.com platform for 2021. 500K Suppliers² In North America >20 Million Annual Sourcing Sessions³ Across 70K industrial categories © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 14#151H Roadmap - Expanding our Buyer Base with Thomas Integration Converting 1.4M+ Registered Thomas Users¹ into Xometry buyers Xometry Q1 2022 Xometry Active Buyers 30,683 Q1 2022 Launch of "Xometry Everywhere", a new quoting module that can be easily embedded in any website Q2 2022 Integrate Xometry Everywhere in ThomasNet.com 1. We define Registered Users as unique individuals that complete a registration form on the Thomasnet.com platform. Q2 2022 Expand manufacturing processes within Xometry's quoting engine, powered by Thomas Sellers Q2 2022 Provide single sign-on for Xometry buyers and Thomas users, enabling seamless purchasing from both sites © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 15#161H Roadmap: Expanding our Supplier Base with Thomas Integration Converting 500K Thomas Suppliers¹ into Xometry Active Suppliers Xometry Q4 2021 Xometry Active Sellers 2,010 (2) Q1 2022 Release supplier analytics to enhance supplier experience on ThomasNet.com J Q1 2022 Enable self-serve for Thomas suppliers to purchase the basket of seller services Q2 2022 Extend Xometry fintech products to Thomas suppliers 1. We define Suppliers as businesses with paid or freemium listings on the Thomasnet.com platform. 2. For the year ended December 31, 2021. We define Active Sellers as the sellers that have used our platform at least once during the last twelve months to manufacture a product or buy tools or supplies. Q2 2022 Release freemium cloud-based operating system to help suppliers get work from Xometry's marketplace and manage their own manufacturing © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 16#17Significant Growth at Scale $ in millions Annual and LTM Revenue Xometry $80.2 FY 2019 $141.4 FY 2020 $218.3 +54% YOY +52% YOY Excluding Thomas FY 2021 $83.7M Quarterly Revenue and YoY Growth $64.4M Marketplace Revenue $19.3M Supplier Services Revenue $43.9 1Q21 $50.6 2Q21 $56.7 3Q21 $67.1 4Q21 $83.7 +90% YOY 1Q22 © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 17#18Revenue Predictability Underscored by Existing Accounts Percentage of Revenue from Existing Accounts(1) 93% 1Q20 94% 2Q20 96% 3Q20 95% 4Q20 (1) We define an existing account as an account where at least one buyer has made a purchase on our marketplace. Xometry 95% 1Q21 95% 2Q21 95% 3Q21 95% 4Q21 94% 1Q22 © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 18#19Supporting Expanding Gross Margin $ in millions Annual and LTM Gross Profit and Margin 18.4% $14.7 2019 23.5% $33.3 2020 26.2% $57.1 25.0% Excluding Thomas 2021 Quarterly Gross Profit and Margin 27.4% Marketplace Gross Margin 79.3% Seller Services Gross Margin ● 22.4% $9.8 1Q21 23.5% $11.9 2Q21 25.6% $14.5 3Q21 Note: For a reconciliation of Adjusted EBITDA and Adjusted EBITDA Margin to the most directly comparable GAAP measure, see Appendix. Margins are as a percent of revenue. Xometry. 31.2% $20.9 4Q21 39.4% $32.9 1Q22 © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 19#20Investments to Drive Long Term Growth with Increasing Leverage $ in millions Quarterly Adj. EBITDA and Margin (20.1)% $(8.8) 1021 (17.9)% $(9.1) 2Q21 (17.7)% $(10.0) 3Q21 (17.7)% $(11.9) 4Q21 Note: For a reconciliation of Adjusted EBITDA and Adjusted EBITDA Margin to the most directly comparable GAAP measure, see Appendix. Margins are as a percent of revenue. Xometry. (15.2)% $(12.7) 1Q22 © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 20#21Non-GAAP Operating Expenses (% of Revenue) Including Thomas from the Acquisition Date December 9, 2021 Sales and Marketing (1) Thomas 35%(3) 17.0% 16.9% 16.7% 18.5% 21.4% 1Q21 2021 3Q21 4Q21 1Q22 Operations and Support (1) Thomas 16%(3) 9.6% 9.6% 8.9% 10.1% 13.1% 1Q21 2Q21 3Q21 4Q21 1Q22 Product Development (1) Thomas 7%(3) 6.8% 6.0% 5.7% (1) Excludes stock-based compensation, depreciation, and amortization. (2) Excludes charitable contribution, revaluation of contingent consideration, amortization of in-place lease asset, and transaction costs. (3) GAAP Operating expenses as a percent of revenue for Thomas for the trailing 12 months ended September 30, 2021 Xometry 5.9% 6.7% 1021 2021 3Q21 4Q21 1Q22 G&A (1) (2) Thomas 30%(3) 9.2% 9.0% 12.0% 14.4% 13.5% 1Q21 2Q21 3Q21 4Q21 1Q22 © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 21#22Path to Adjusted EBITDA Profitability for 2023 Expect quarter over quarter profitability improvements in 2022 Expect to be Adjusted EBITDA profitable for full year 2023 ● 2022 Outlook Growth Marketplace Supplier Services Xometry Strong Revenue Growth ● ● . 80-83% Total YoY growth -50-60% Marketplace growth Active buyer growth Land and expand strategy Thomas synergies - convert Thomas users to Xometry buyers International expansion Higher attachment rates for 500k listed Suppliers on ThomasNet Strong Gross Profit Growth ● -160% - 175% Total YoY growth -75-80% Marketplace YOY growth Al-driven pricing model that improves as it ingests data Improved matching as the number of active suppliers increases Expand basket of high margin supplier services 2022 Outlook Sales & Marketing Operations & Support G & A ● ● ● Operating Leverage Increase self-service options for Supplier Services Higher quantity of parts per order Customer teams built to support higher order volume Thomas cost synergies $12M fixed public co. costs Thomas cost synergies © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 22#23Significant Opportunities for Long Term Growth 000 Attract new buyers and grow wallet share with existing buyers Xometry Become an enterprise solution 4 Enhance and offer additional supplier services Continue international expansion Pursue strategic acquisitions © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 23#24Forward Guidance © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential C 19 041 24#25Guidance ($ in millions) Revenue Adjusted EBITDA Low $91.5 $(11.0) Note: For a reconciliation of Adjusted EBITDA to the most directly comparable GAAP measure, see Appendix. Xometry. Q2 2022 (in millions) High $93.5 $(10.0) Low $392.0 $(36.0) Full Year 2022 (in millions) High $400.0 $(32.0) © 2022 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 25#26Xometry Financial Highlights $ in millions Total Revenue Xometry $141.4 FY 2020 $218.3 FY 2021 $392 - 400 YOY Growth 80-83% FY Guidance 2022 Gross Profit and Margin 23.5% $33.3 FY 2020 26.2% $57.1 FY 2021 38-39% FY Guidance 2022 1. We define Adjusted EBITDA as net income (loss) excluding interest income (expense), income tax (expense) benefit, and certain other non-cash or non-recurring items impacting net loss from time to time, principally comprised of depreciation and amortization, stock-based compensation, transaction costs, charitable contributions, income from unconsolidated joint venture and impairment charges. For additional information on non-GAAP reconciliations, please see the Appendix. Adjusted EBITDA¹ and Margin (16.6)% FY 2020 $(23.5) (18.2)% FY 2021 $(39.8) (8.0-9.2)% FY Guidance 2022 $(36)-(32) Ⓒ2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 26#27Appendix © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential C 19 041 27#28Adjusted EBITDA Reconciliation ($ in thousands) Adjusted EBITDA: Net loss Add (deduct): Interest expense, interest and dividend income and other expenses Depreciation and amortization (1) Income tax benefit Amortization of in-place lease asset Stock-based compensation (2) Contingent consideration revaluation Transaction costs Income from unconsolidated joint venture Adjusted EBITDA GA Xometry $ For the Three Months Ended March 31, 2022 (19,995) $ 1,635 1,799 (559) 333 3,456 434 205 (34) (12,726) $ 2021 (10,501) 452 734 505 (8,810) (1) Represents depreciation expense of the Company's long-lived tangible assets and amortization expense of its finite-lived intangible assets, as included in the Company's GAAP results of operations. (2) Represents the expense related to stock-based awards granted to employees, as included in the Company's GAAP results of operations. © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 28#29Combined Capabilities Extend Market Opportunity Xometry ● ● ● ● ● ● Xometry. CNC Machining Injection Molding 3D Printing Sheet Metal Die Casting Urethane Casting + II THOMAS™ 70K+ Industrial Categories including Tube Fabrication & Bending Services Castings Thermoforming Forgings Roll Forming Rubber Molding ● ● ● ● $2.4T Total addressable market Xometry + Thomas can together best serve the end-to-end needs of buyers © 2022 Xometry, Inc. and/or its affiliates. All rights reserved. Confidential 29#30Xometry Xometry + TI THOMAS II Accelerates Development of Xometry's Marketplace 4 Accelerates development of Xometry's marketplace 61 Creates unparalleled scale of buyers and suppliers 00 3 Establishes end- to-end suite of supplier services TM ال Enhances margins and accelerates path to profitability 30