Jacobs Engineering Group Investor Presentation — May 2024

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Second Quarter Results

May 7, 2024©Jacobs 2024©Jacobs 2024Disclaimer

Forward-Looking Statement Disclaimer

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. More information about these non-GAAP financial measures

and reconciliations of these non-GAAP financial measures to the most directly comparable GAAP financial measures can be found in the supplemental disclosures package on our investor relations website at

invest.jacobs.com.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 expectations as to our future growth, prospects, financial

outlook and business strategy, including our expectations for our fiscal year 2024 adjusted EBITDA, adjusted EPS and free cash flow conversion, as well as our expectations for margin expansion and our fiscal year 2024 effective tax

rates, and any assumptions underlying any of the foregoing. Although such statements are based on management'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 to spin

off and merge with Amentum our Critical Mission Solutions (“CMS”) business and a portion of our Divergent Solutions business (together the “Combined Company”) in a proposed transaction that is intended to be tax-free to

stockholders for U.S. federal income tax purposes (hereinafter referred to as the “Separation Transaction”), the impact of the Separation Transaction on Jacobs’ and the Combined Company’s businesses if the transaction is