DIGITAL MANUFACTURING. REIMAGINED.

Scalable Platform with Proven Profitability Scalable Platform with Strong Growth and Margins1 ■Revenue ($mm) ■ Adj. EBITDA ($mm) 22% Revenue CAGR $317 $252 $205 $168 $149 $408 $115 $88 $69 $40 $45 $54 Key Highlights Strong organic growth trajectory driven by shift to Industry 4.0 and digital new product development Additional growth driven by land and expand strategy with existing customers • Robust adj. EBITDA margins . Tailwinds from rising additive adoption. • Clear runway with only ~1% market penetration by 2025 2020 2021E 2022E 2023E 2024E 2025E Adj. 27% 26% 27% 27% 28% 28% EBITDA² % Market 0.6% penetration³ 0.6% 0.7% 0.9% 1.0% 1.2% Source: Management projections, market study by leading industry consultant 1 Information for 2020 and 2021 reflects various adjustments to give pro forma effect to acquisitions completed in 2020 and 2021 as though such transactions occurred on January 1, 2020; 2 Adjusted EBITDA is a non-GAAP measure. Adjustments to EBITDA include transaction and integration costs, non-recurring and non-cash items, compensation normalization and other accounting adjustments. See Appendix for a calculation of Adjusted EBITDA; 3 Based on Fathom core addressable market, comprised of low-to-mid volume manufacturing utilizing CNC machining, injection molding, sheet metals and additive manufacturing technologies FATHOM Fathom Proprietary and Confidential 19

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