DIGITAL MANUFACTURING. REIMAGINED.

Adjusted Revenue Calculation ($mm) GAAP revenue (actual) +2020 add-ons adjusted revenue¹ +Q2 2021 add-ons adjusted revenue² -Management and accounting adjustments Pro forma adjusted revenue 然 FY 2020 $61.3 56.8 32.2 (0.8) $149.4 1 Information gives pro forma effect to acquisitions completed through March 31, 2021, as though such transactions occurred on January 1, 2020; 2 Information gives pro forma effect to acquisitions completed during Q2 2021, as though such transactions occurred on January 1, 2020. FATHOM Fathom Proprietary and Confidential 38

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