Combination Creates a Government Services Prime

Disclaimer Certain statements contained in this presentation constitute forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that do not directly relate to any historical or current fact. When used herein, words such as "expects," "anticipates," "believes," "seeks," "estimates," "plans," "intends," "future," "will," "would," "could," "can," "may," "target," "goal" and similar words are intended to identify forward-looking statements. Examples of forward-looking statements include, but are not limited to, statements we make concerning our plans to spin off and merge with Amentum the CMS business and the above-referenced portion of the DVS business in a proposed transaction that is intended to be tax-free to stockholders for U.S. federal income taxes purposes, Jacobs' and its stockholders respective ownership percentages of the combined company, the amount of cash payment and value to be derived from the disposition of Jacobs' stake in the combined company, the expected timing, structure and tax treatment of the proposed transaction, our intent to maintain Jacobs' investment grade credit profile, the ability of the parties to complete the proposed transaction, the potential benefits and synergies of the proposed transaction, including future financial and operating results and strategic benefits, the description of the combined company's anticipated revenue, business and growth opportunities, and the combined company's plans, objectives, expectations and intentions, legal, economic and regulatory conditions, and any assumptions underlying any of the foregoing. Although such statements are based on Jacobs' and Amentum's current estimates and expectations, and/or currently available competitive, financial, and economic data, forward-looking statements are inherently uncertain, and you should not place undue reliance on such statements as actual results may differ materially. We caution the reader that there are a variety of risks, uncertainties and other factors that could cause actual results to differ materially from what is contained, projected or implied by our forward-looking statements. Such factors include uncertainties as to the structure and timing of the proposed transaction, the impact of the proposed transaction on Jacobs and the combined company if the proposed transaction is completed, the possibility that the proposed transaction may not qualify for the expected tax treatment, the ability to obtain all required regulatory approvals, the possibility that closing conditions for the proposed transaction may not be satisfied or waived, on a timely basis or otherwise, the risk that any consents or approvals required in connection with the proposed transaction may not be received, the risk that the proposed transaction may not be completed on the terms or in the time-frame expected by the parties, unexpected costs, charges or expenses resulting from the proposed transaction, business and management strategies and the growth expectations of the combined company, the ability of the parties to combine the combined company and to implement its business strategy and realize the expected benefits, including the ability to realize the estimated synergies, the inability of the Company and the combined company to retain and hire key personnel, customers or suppliers while the proposed transaction is pending or after it is completed, as well as other factors related to the combined company business, such as competition from existing and future competitors in its target markets, financial market risks that may affect Jacobs or the combined company, including by affecting Jacobs' or the combined company's access to capital, as well as general economic conditions, including inflation and the actions taken by monetary authorities in response to inflation, changes in interest rates and foreign currency exchange rates, changes in capital markets, the impact of a possible recession or economic downturn on our results, prospects and opportunities, and geopolitical events and conflicts, the risk that disruptions from the proposed transaction will impact the Jacobs' or Amentum's business, the risk that the separation of the CMS business from the Company is more difficult than expected, the risk of a disruption in the Company's business as a result of the pending proposed transaction, a possible decrease in the trading price of the Company's and/or the combined company's shares, as well as factors related to our business or detailed from time to time in the Company's reports filed with the U.S. Securities and Exchange Commission ("SEC"). The foregoing factors and potential future developments are inherently uncertain, unpredictable and, in many cases, beyond our control. For a description of these and additional factors that may occur that could cause actual results to differ from our forward-looking statements see our Annual Report on Form 10-K for the year ended September 29, 2023, and in particular the discussions contained therein under Item 1-Business; Item 1A-Risk Factors; Item 3-Legal Proceedings; and Item 7-Management's Discussion and Analysis of Financial Condition and Results of Operations, our Quarterly Reports on Form 10-Q, as well as the Company's other filings with the SEC. The Company is not under any duty to update any of the forward-looking statements after the date of this presentation to conform to actual results, except as required by applicable law. We encourage you to read carefully the risk factors, as well as the financial and business disclosures contained in our Annual Report on Form 10-K, our Quarterly Report on Form 10-Q and in other documents we file from time to time with the United States Securities and Exchange Commission. Non-GAAP Financial Measures and Operating Metrics To supplement the financial results presented in accordance with generally accepted accounting principles in the United States ("GAAP"), we present certain non-GAAP financial measures within the meaning of Regulation G under the Securities Exchange Act of 1934, as amended. These measures are not, and should not be viewed as, substitutes for GAAP financial measures. This presentation contains certain operating metrics which management believes are useful in evaluating the transaction. We generally explain these metrics in footnotes when used. Combined Backlog represents revenue the combined company expects to realize for work to be completed, including work to be completed by their consolidated subsidiaries and the proportionate share of work to be performed by unconsolidated joint ventures. Backlog to revenue represents the ratio of combined backlog to the revenue of the separated businesses plus Amentum's revenue. Leverage equals the sum of indebtedness of Amentum and CMS expected to be outstanding at a point in time less cash and cash equivalents as of the same point in time, divided by the adjusted earnings before interest, taxes, depreciation and amortization for the 12-month period ending on that date. We regularly monitor these operating metrics to evaluate our business, identify trends affecting our business, and make strategic decisions, and expect the combined company to similarly evaluate these metrics. Disclaimer of Amentum Information: Certain information contained he rein, including the combined company's expected revenue, the percen tage of revenue derived from prime contracts, and the combined backlog and pipeline, is based in part on information provided by Amentum in connection with the proposed transaction. Jacobs has not independently verified this information. Information regarding Ament um's and CMS's future expectations of performance, including project ed Adj. EBITDA margin, and projected leverage ratios, are based on estimates and assumptions. There can be no assurance that these estimates and assumptions are correct, and you should not unduly rely upon them. Jacobs 2023