Xometry Mergers and Acquisitions Presentation Deck

Disclaimer Cautionary Information Regarding Forward-Looking Statements: This presentation contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which statements involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as "may," "will," "should," "expect," "plan," "anticipate," "could," "would," "intend," "target," "project," "contemplate," "believe," "estimate," "predict," "potential" or "continue" or the negative of these words or other similar terms or expressions that concern the expectations, strategy, plans or intentions of Xometry, Inc. ("Xometry", the "Company", "we" or "our"). Forward-looking statements in this presentation include, but are not limited to, our beliefs regarding our financial position and operating performance, including our outlook and guidance for the full year 2021, and demand for our marketplace in general. Our expectations and beliefs regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected, including risks and uncertainties related to: competition, managing our growth, financial performance, including the impact of the COVID-19 pandemic on our business and operations and our ability to forecast our performance due to our limited operating history and the COVID-19 pandemic, investments in new products or offerings, our ability to attract buyers and sellers to our marketplace, legal proceedings and regulatory matters and developments, any future changes to our business or our financial or operating model, and our brand and reputation. The forward-looking statements contained in this presentation are also subject to other risks and uncertainties that could cause actual results to differ from the results predicted, including those more fully described in our filings with the SEC, including our Quarterly Report on Form 10-Q for the period ended June 30, 2021. All forward-looking statements in this presentation are based on information available to Xometry and assumptions and beliefs as of the date hereof, and we disclaim any obligation to update any forward-looking statements, except as required by law. Use of Non-GAAP Financial Measures: To supplement its consolidated financial statements, which are prepared and presented in accordance with generally accepted accounting principles in the United States of America ("GAAP"), Xometry uses Adjusted EBITDA, a non-GAAP financial measure, as described below. This non- GAAP financial measure is presented to enhance the user's overall understanding of Xometry's financial performance and should not be considered a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. The non-GAAP financial measure presented in this presentation, together with the GAAP financial results, are the primary measures used by the Company's management and board of directors to understand and evaluate the Company's financial performance and operating trends, including period-to-period comparisons, because they exclude certain expenses and gains that management believes are not indicative of the Company's core operating results. Management also uses this measure to prepare and update the Company's short and long term financial and operational plans, to evaluate investment decisions, and in its discussions with investors, commercial bankers, equity research analysts and other users of the Company's financial statements. Accordingly, the Company believes that this non-GAAP financial measure provides useful information to investors and others in understanding and evaluating the Company's operating results in the same manner as the Company's management and in comparing operating results across periods and to those of Xometry's peer companies. The use of non-GAAP financial measures has certain limitations because they do not reflect all items of income and expense, or cash flows, that affect the Company's financial performance and operations. An additional limitation of non-GAAP financial measures is that they do not have standardized meanings, and therefore other companies, including peer companies, may use the same or similarly named measures but exclude or include different items or use different computations. Management compensates for these limitations by reconciling these non- GAAP financial measures to their most comparable GAAP financial measures in the tables captioned "Reconciliations of Non-GAAP Financial Measures" included at the end of this presentation. Investors and others are encouraged to review the Company's financial information in its entirety and not rely on a single financial measure. Use of Projections: This presentation contains financial projections, forecasts, pro forma information, and Non-GAAP Financial Measures with respect to Xometry and Thomasnet. Such projected financial information constitutes forward-looking information and is for illustrative purposes only and should not be relied upon as necessarily being indicative of future results. The assumptions and estimates underlying such projected financial information are inherently uncertain and are subject to a wide variety of significant business, economic, competitive and other risks and uncertainties that could cause actual results to differ materially from those contained in the prospective financial information. See "Cautionary Information Regarding Forward-Looking Statements" above. Actual results may differ materially from the results contemplated by the projected financial information contained in this presentation, and the inclusion of such information in this presentation should not be regarded as a representation by any person that the results reflected in such projections will be achieved. Neither Xometry's independent auditors, nor the independent registered public accounting firm of Thomasnet, audited, reviewed, compiled, or performed any procedures with respect to the projections, forecasts, pro forma information, and Non-GAAP Financial Measures for the purpose of their inclusion in this presentation, and accordingly, neither of them expressed an opinion or provided any other form of assurance with respect thereto for the purpose of this presentation. These projections, forecasts, pro forma information, and Non-GAAP Financial Measures should not be relied upon as being necessarily indicative of historical or future results. Xometry © 2021 Xometry, Inc and/or its affiliates. All rights reserved. Confidential 2