DIGITAL MANUFACTURING. REIMAGINED.

Key Investment Highlights 术 1 Fathom is transforming new product development and 2 3 manufacturing for corporates Massive opportunity in a large TAM Entrenched partner to the world's largest companies • ° • Leading platform capable of accelerating new product development to keep pace with Industry 4.0 disruption Advanced software, deep technical expertise and broadest suite of 25+ quick-turn manufacturing processes Unique "one-stop-shop" solution enables faster iterations, shortening development cycles from months to days Uniquely positioned as the only "end-to-end" solution for corporates in highly fragmented $25bn¹ TAM Substantial scale that is difficult to replicate; nearly 450k sq. ft. of manufacturing capacity over 12 facilities, nationwide • Tailwinds from accelerating additive manufacturing adoption and continued shift to outsourcing • Proven track record with ~3k total blue-chip corporate customers in the last twelve months • Over 35 years of industry expertise, coupled with a singular focus on quality, service and execution, enables 91% overall customer retention² Long-term relationships with key strategic accounts and proven ability to up-tier newly acquired customers • Compelling growth trajectory with 17% 2020-2022E PF revenue CAGR³ 4 Scalable platform with proven profitability • Robust, proven profitability with 27% 2022E Adj. EBITDA margins4 5 Acquisitive growth platform with compelling pipeline • • Large opportunity ahead, with only <1% market penetration by 2022 Clear upside from differentiated M&A capabilities in a target-rich environment; 13 acquisitions in last 3 years Proven ability to rapidly integrate and compound growth of acquired businesses • Ready to execute on pipeline, with line of sight into 50+ opportunities • 6 Highly experienced leadership team and Board of Directors Leadership team with public market experience and track record of scaling high-growth companies • Deep additive and advanced manufacturing pedigree with nearly 200 years of combined experience • Board of Directors with a track record of advising and leading innovation for some of the world's leading manufacturers Source: Management projections, market study outlook by leading industry consultant 1 Fathom core addressable market, comprised of low-to-mid volume manufacturing utilizing CNC machining, injection molding, sheet metals and additive manufacturing technologies; 2 FY2019-FY2020 sales data (excludes 2021 add-ons); 3 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; 4 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 FATHOM 23 Fathom Proprietary and Confidential

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