DIGITAL MANUFACTURING. REIMAGINED.

Entrenched Partner to the World's Leading Companies Proven Track Record with blue-chip customers across diverse end markets ~3k Total customers in the last twelve months¹ 91% Overall customer retention¹ <6% Revenue contribution from any single customer¹ Aerospace 7 of the top 10² Aerospace companies in the Fortune 500, representing a combined ~$285bn in 2020 revenue Industrial 8 of the top 105 Industrial companies in the Fortune 500, representing a combined ~$233bn in 2020 revenue Automotive / EV 4 of the top 10³ Automotive companies in the Fortune 500, representing a combined ~$316bn in 2020 revenue Medical 8 of the top 10° Medical companies in the Fortune 500, representing a combined ~$105bn in 2020 revenue Consumer 4 of the top 104 Consumer companies in the Fortune 500, representing a combined ~$115bn in 2020 revenue Technology 7 of the top 107 Technology companies in the Fortune 500, representing a combined ~$932bn in 2020 revenue REPRESENTATIVE CUSTOMERS 3M amazon APPLIED MATERIALS Google Johnson Johnson Pfizer PHILIPS P&G ↑ TEXTRON Zimmer TESLA Source: Fathom management, company filings Note: End markets with share of less than 3% not shown 1 LTM 3/31/21 sales data (excludes 2021 acquisitions); 2 Fortune's Aerospace & Defense segment; 3 Fortune's Motor Vehicles & Parts segment; 4 Fortune's Household and Personal Products segment; 5 Fortune's Industrials segment; 6 Fortune's Medical Products and Equipment segment; 7 Fortune's Technology segment; 8 Select customers presented. Use of names and logos does not imply endorsement FATHOM Fathom Proprietary and Confidential 11

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