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CACI Reports Results for Its Fiscal 2021 Third Quarter Revenue of $ 1.6 billion , + 5.9 % year - over - year Net income of $ 120.3 million , + 49.4 % year - over - year Robust cash flow Contract awards of $ 1.6 billion Updates Fiscal Year 2021 Guidance Arlington , Va . , April 21 , 2021 - CACI International Inc ( NYSE : CACI ) , a leading provider of expertise and technology to government enterprise and mission customers , announced results today for its third fiscal quarter ended March 31 , 2021 . CEO Commentary and Outlook John Mengucci , CACI's President and CEO , said , “ We again delivered solid organic growth , strong profitability , and robust cash flow . While the effects of the pandemic linger , we continue to execute our long - term strategy of offering differentiated and distinctive technology that drives growth , operational excellence , and allows us to deploy capital for the benefit of our shareholders . CACI is focused on our customers ' critical national security and IT modernization priorities , which enables us to grow faster than our addressable market , expand margins , and deliver value to our customers and shareholders . ” Third Quarter Results ( in millions except earnings per share and DSO ) Revenue Q3 FY21 Q3 FY20 % Change $ 1,551.9 $ 1,465.6 5.9 % Operating income $ 151.4 $ 113.7 33.2 % Net income $ 120.3 $ 80.6 49.4 % Diluted earnings per share $ 4.78 $ 3.16 51.2 % | Adjusted earnings before interest , taxes , depreciation and amortization ( EBITDA ) , a non - GAAP measure¹ $ 183.7 $ 141.4 29.9 % Net cash provided by operating activities excluding MARPA , a non - GAAP measure¹ $ 128.1 $ 124.7 2.7 % Free cash flow , a non - GAAP measure¹ $ 108.7 $ 111.4 -2.4 % Days sales outstanding ( DSO ) ² 53 57 ( 1 ) This non - GAAP measure should not be considered in isolation or as a substitute for measures prepared in accordance with GAAP . For additional information regarding this non - GAAP measure , see the related explanation and reconciliation to the GAAP measure included below in this release . ( 2 ) The DSO calculations for third quarter FY21 and third quarter FY20 exclude the impact of the Company's MARPA , which was 6 days and 8 days , respectively . Revenue in Q3 FY21 increased 5.9 % year - over - year as reported and 5.3 % organically . The year - over - year increase in operating income was driven by higher revenue , strong operating performance , favorable fixed- price contract performance , and lower indirect costs . The year - over - year increase in net income was due to strong operating performance as well as lower interest expense and lower effective tax rate . The lower 1