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IRON MOUNTAIN® FOR IMMEDIATE RELEASE -- Achieves record quarterly Revenue , Net Income and Adjusted EBITDA -- -- Increases midpoint of 2021 financial guidance -- -- Increases full - year Global Data Center leasing guidance to 30+ megawatts BOSTON - August 5 , 2021 – Iron Mountain Incorporated ( NYSE : IRM ) , the global leader in innovative storage and information management services , announces financial and operating results for the second quarter of 2021. The conference call / webcast details , earnings call presentation and supplemental financial information , which includes definitions of certain capitalized terms used in this release , are available on Iron Mountain's Investor Relations website . Reconciliations of non - GAAP measures to the appropriate GAAP measures are included herein . " Our stronger than expected performance in both the second quarter and first half of the year reflects the breadth and depth of our products and solutions and the strength of our deep customer relationships . Our second quarter results reflect increased demand for our services across our key markets , " said William L. Meaney , president and CEO of Iron Mountain . " As we celebrate and honor Iron Mountain's 70th anniversary this month , I am extremely proud of what our team has accomplished in spite of the continued challenges due to COVID . Our Mountaineers across the globe conquered every obstacle with tenacity , a relentless focus on accelerating growth and an innovative mindset . " Iron Mountain Reports Second Quarter Results Financial Performance Highlights for the Second Quarter and Year - to - Date 2021 ( $ in millions , except per share data ) Storage Rental Revenue Service Revenue Total Revenue Net Income ( Loss ) Adjusted EBITDA Adjusted EBITDA Margin AFFO AFFO per share Three Months Ended 6/30/21 $ 718 $ 401 $ 1,120 $ 277 $ 406 36.2 % $ 246 $ 0.85 6/30/20 $ 677 $ 305 $ 982 $ ( 7 ) $ 359 36.6 % $ 250 $ 0.87 1 Y / Y % Change 6 % 32 % 14 % NM 13 % -40 bps ( 1 ) % ( 3 ) % Year to Date 6/30/21 $ 1,426 $ 775 $ 2,202 $ 323 $ 786 35.7 % $ 481 $ 1.66 6/30/20 $ 1,361 $ 690 $ 2,051 $ 58 $ 725 35.4 % $ 480 $ 1.67 Y / Y % Change 5 % 12 % 7 % 459 % 8 % +30 bps