2022 Corporate Responsibility Report

Non-GAAP P&L Revenues $ millions 1,503 1,586 1,473 Adj. EBITDA $ millions 384 379 386 382 M M 1,409 1,409 1Q23 2Q23 3Q23 4Q23 1Q24 333 1Q23 2Q23 3Q23 4Q23 1Q24 $ millions except per share amounts 1Q23 2Q23 3Q23 4Q23 1Q24 2023 Revenue 1,409 1,503 1,409 1,586 1,473 5,907 Less Cost of Services 435 487 451 530 459 1,903 Contribution 974 1,016 958 1,056 1,013 4,004 Less SG&A 657 680 661 704 690 2,702 Plus Equity Comp 45 32 27 26 51 130 Plus Other Adjustments * 17 17 9 8 100 8 51 Adj. EBITDA 379 384 333 386 382 1,483 Less Equity Comp 45 Less Depreciation Less Non-GAAP Interest, net 225 24 26 222 32 27 26 51 130 24 25 26 26 99 23 21 19 18 90 Less Other Expense (Income) 1 1 1 0 3 Adjusted Pre-tax Income 283 304 260 315 288 1,162 Less Adjusted Tax 51 77 57 74 56 259 Adjusted Net Income Adj. EPS 231 227 203 241 232 903 * Consists of direct and incremental expenses related to acquisitions and divestitures, impairment loss for lease related assets, facility-related exit costs and other non-recurring items. 2024 Gartner, Inc. and/or its affiliates. All rights reserved. 24 2.88 2.85 2.56 3.04 2.93 11.33 Gartner

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