Investor Presentaiton

Legal This presentation contains forward-looking information within the meaning of applicable Canadian securities legislation including, without limitation, statements related to the industries in which we operate, growth opportunities and our future financial position and results of operations. Forward-looking information involves known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those expressed or implied by such forward-looking information. Important factors that could cause actual results to differ materially from the Company's plans or expectations include risks relating to changes in the condition of the economy, including those arising from public health concerns such as COVID-19, reliance on key customers and licences, dependence on key projects and clients, securing new business and fixed-price contracts, identification of viable growth opportunities, implementation of our growth strategy, competition and other risks detailed from time to time in the filings made by the Company including those detailed in ISC's Annual Information Form for the year ended December 31, 2021 and ISC's Consolidated Financial Statements and Notes and Management's Discussion and Analysis ("MD&A") for the quarter ended September 30, 2022, copies of which are filed on SEDAR at www.sedar.com. The forward-looking information in this presentation is made as of the date hereof and, except as required under applicable securities legislation, ISC® assumes no obligation to update or revise such information to reflect new events or circumstances. This presentation also includes certain measures, which have not been prepared in accordance with International Financial Reporting Standards ("IFRS"), such as EBITDA and free cash flow. Rather, these measures are provided as additional information to complement those IFRS measures. Refer to section 8.8 "Non-IFRS financial measures" in the MD&A for discussion of why we use these measures and their most closely related IFRS measures within the Consolidated Financial Statements and Notes. Refer to section 2 "Consolidated Financial Analysis" of the MD&A for a reconciliation of EBITDA to Net Income and section 6.1 "Cash flow" of the MD&A for a reconciliation of free cash flow. company.isc.ca TSX:ISV 2 ISC

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