Investor Presentaiton

AON 2023 U.S. GAAP Financials Q2'23 YTD'23 Total Revenue Growth +7% +6% Operating Margin Earnings Per Share Cash Flows from Operations 26.5% 32.8% $2.71 $7.79 $1,131M Explanation of Non-GAAP Measures This communication includes supplemental information not calculated in accordance with generally accepted accounting principles in the United States ("U.S. GAAP"), including organic revenue growth, free cash flow, free cash flow margin, return on invested capital, adjusted operating income, adjusted operating margin, adjusted earnings per share, adjusted net income attributable to Aon shareholders, adjusted net income per share, and adjusted effective tax rate that exclude the effects of intangible asset amortization and impairment, pension settlements, capital expenditures, and certain other noteworthy items that affected results for the comparable periods. Organic revenue growth includes the impact of intercompany activity and excludes foreign exchange rate changes, acquisitions, divestitures, transfers between revenue lines, fiduciary investment income, and gains or losses on derivatives accounted for as hedges. Currency impact represents the effect on prior year period results if they were translated at current period foreign exchange rates. Reconciliations to the closest U.S. GAAP measure for each non-GAAP measure presented in this communication are provided in the attached appendices. Supplemental organic revenue growth information and additional measures that exclude the effects of certain items noted above do not affect net income or any other U.S. GAAP reported amounts. Free cash flow is cash flows from operating activity less capital expenditures. The adjusted effective tax rate excludes the applicable tax impact associated with expenses for estimated intangible asset amortization and impairment, and certain other noteworthy items. Management believes that these measures are important to make meaningful period-to-period comparisons and that this supplemental information is helpful to investors. Management also uses these measures to assess operating performance and performance for compensation. Non-GAAP measures should be viewed in addition to, not in lieu of, Aon's Consolidated Financial Statements. Industry peers provide similar supplemental information regarding their performance, although they may not make identical adjustments. 15

View entire presentation