Three industrial deep tech companies took the leap from private markets to public ones through SPACs. Their journeys offer a rare look at what happens when ambitious technology, heavy capital needs and public-market expectations come together.
In 2026, Deep Tech sits at the core of every serious conversation about productivity, resilience, and competitiveness. Energy, defense, manufacturing, mobility, and compute all depend on hardware-heavy systems that blend advanced materials, complex supply chains, and software-defined control.
These companies do not scale on brand or distribution alone. They scale on engineering depth, capital discipline, and industrial execution.
They demand teams that understand physics and finance, process control and customer acquisition, semiconductor fab dynamics and public-market dynamics.
Standard metrics still lag this reality. Most dashboards for investors and boards were built for SaaS or consumer Apps. They track ARR, CAC, and net retention. Deep tech runs on different drivers: Capex cycles, qualification timelines, yield curves, gross margin trajectories across product lines, and the ratio between non-recurring engineering and recurring revenue.
The ecosystem needs better ways to read these signals.
Founders, investors, and large industrial buyers benefit from benchmarks grounded in real histories, not only in pitch narratives. That means going back to past cycles, reconstructing what actually happened company by company, and extracting patterns that repeat across technologies and macro regimes.
Metal additive manufacturing is an ideal testing ground for this work. It sits at the junction of materials science, precision hardware, and software, yet it has been exposed to some of the most aggressive capital cycles of the last decade. From the early 2010s hype around “3D printing” to the 2020–2021 SPAC boom, metal AM went from lab curiosity to public-equity story in a remarkably short time.
This analysis reconstructs in detail the journeys of Desktop Metal, Markforged, and Velo3D from inception to their SPAC listings and the first years of life as public companies. It is a comparative case study of three deep-tech startups tackling metal additive manufacturing with distinct technology architectures, and ultimately reaching the public markets through SPAC mergers.
The purpose is to chronicle how each company was founded to address specific technological gaps, how they built out products and early market traction, how they navigated the financing environment of 2020–2021, and what has transpired in the years since listing.
The goal is to make clear the milestones, inflection points, and metrics that defined each trajectory, and to use them to illuminate the interplay between technology development and financial market forces in the 3D printing industry.
Roadmap of the Analysis
Section 1 – Origins
discusses the state of metal additive manufacturing before these startups, the founding stories of each company, their initial technologies, and early funding.Section 2 – Building the Business
examines how each company moved from prototype to product line, their target market segments and use cases, early revenue models and unit economics, and go-to-market approaches in the years leading up to the SPAC window.Section 3 – The SPAC Moment
describes the macroeconomic context of the SPAC boom, outlines the mechanics and terms of each SPAC merger (implied valuations and capital raised), and discusses how those valuations related to the companies’ fundamentals and stated uses of proceeds at the time.Section 4 – Life After the Deal
tracks the financial and strategic trajectories of the companies in the public market – revenue growth or shortfalls, margin evolution, cash burn and any need for additional financing, major strategic moves (such as acquisitions or restructuring), and key inflection points and challenges encountered.Section 5 – Cross-Cutting Insights Across the Three Cases
provides a comparative recap of the three trajectories and distills cross-cutting insights – for example, how pre-SPAC unit economics and customer concentration correlated with post-SPAC resilience once the macro environment turned.Section 6 – Broader Reflections on Financing Industrial Deep Tech
offers broader reflections on the role of SPACs and public markets in financing capital-intensive industrial technologies, the interaction with industrial policy and supply-chain narratives, and the limitations of this analysis together with suggestions for further inquiry.
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