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MarshMcLennan NEWS RELEASE Media Contact : Erick R. Gustafson Marsh McLennan +1 202 263 7788 erick.gustafson@mmc.com Marsh McLennan 1166 Avenue of the Americas New York , New York 10036-2774 212 345 5000 www.mmc.com Investor Contact : Sarah DeWitt Marsh McLennan +1 212 345 6750 sarah.dewitt@mmc.com MARSH MCLENNAN REPORTS SECOND QUARTER 2021 RESULTS GAAP Revenue Increases 20 % ; Underlying Revenue Rises 13 % Growth in GAAP Operating Income of 39 % and Adjusted Operating Income of 24 % Second Quarter EPS Rises to $ 1.60 from $ 1.12 and Adjusted EPS Increases 33 % to $ 1.75 Six Months EPS Rises to $ 3.51 from $ 2.60 and Adjusted EPS Increases 26 % to $ 3.74 NEW YORK , July 22 , 2021 – Marsh McLennan ( NYSE : MMC ) , the world's leading professional services firm in the areas of risk , strategy and people , today reported financial results for the second quarter ended June 30 , 2021 . Dan Glaser , President and CEO , said : " Our performance this quarter was outstanding . The company achieved the strongest underlying growth in two decades , and experienced an acceleration in growth across all of our businesses . We grew underlying revenue by 13 % , adjusted operating income by 24 % , and adjusted EPS by 33 % . " These results are a direct reflection of the hard work and dedication of our colleagues around the world . We look forward to carrying this momentum into the second half of the year . " Consolidated Results Consolidated revenue in the second quarter of 2021 was $ 5.0 billion , an increase of 20 % compared with the second quarter of 2020. On an underlying basis , revenue increased 13 % . Operating income was $ 1.2 billion , an increase of 39 % from the prior year . Adjusted operating income , which excludes noteworthy items as presented in the attached supplemental schedules , rose 24 % to $ 1.2 billion . Net income attributable to the Company was $ 820 million , or $ 1.60 per diluted share , compared with $ 1.12 in the second quarter of 2020. Adjusted earnings per share rose 33 % to $ 1.75 per diluted share compared with $ 1.32 for the prior year period . 1 For the six months ended June 30 , 2021 , consolidated revenue was $ 10.1 billion , an increase of 14 % , or 9 % on an underlying basis compared to the prior period . Operating income was $ 2.6 billion , an increase of 32 % from the prior year period . Adjusted operating income rose 22 % to $ 2.6 billion . Net