Investor Presentaiton

2 EXCELLENCE INNOVATION PEOPLE GROWTH STN TSX NYSE Cautionary Note Regarding Forward-Looking Statements Certain statements contained in this presentation constitute forward-looking information and statements within the meaning of applicable securities law (collectively, "forward-looking statements"). Forward-looking statements in this presentation include, but are not limited to: our financial targets (including our annual net revenue growth, adjusted EBITDA, and net income targets; employee count; and ROIC target), our anticipated business and geographical mix, our expectations regarding economic and industry trends in the sectors and regions in which we operate, our acquisition strategy, our capital deployment strategy, and our overall growth strategy. These statements provide information about management's current expectations and plans relating to the future. Readers are cautioned that this information may not be appropriate for other purposes. Stantec does not undertake any obligations to publicly update or revise any forward-looking statements except as required by law. By their nature, forward-looking statements require us to make assumptions and are subject to inherent risks and uncertainties. Readers are cautioned not to place undue reliance on our forward-looking statements since a number of factors could cause actual future results, conditions, actions, or events to differ materially from the targets, expectations, estimates, or intentions expressed in these forward- looking statements. Risk factors include, but are not limited to, the risk of an economic downturn, decreased spending in the private and/or public sectors, changing market conditions for Stantec's services, and the risk that Stantec fails to capitalize on its strategic initiatives. Investors and the public should carefully consider these factors, other uncertainties, and potential events, as well as the inherent uncertainty of forward-looking statements when relying on these statements to make decisions about our company. For more information about how other material risk factors could affect our results, please refer to the Risk Factor section in our 2019 Annual Report and Q2 2020 Management's Discussion and Analysis incorporated herein by reference. Readers can access these documents by visiting EDGAR on the SEC website at sec.gov or by visiting the CSA website at sedar.com or on Stantec's website at stantec.com. In determining our forward-looking statements, we consider material factors including assumptions about the performance of the Canadian, US, and global economies in 2020 and beyond and their effect on our business. These key factors and assumptions are outlined thoroughly in our press release dated December 3, 2019. Unless otherwise indicated, all amounts expressed in Canadian dollars.

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