Boston Metal
Innovative metals processing
Boston, United States · Founded 2012 · $505.0M raised
- Headquarters
- Boston, Massachusetts
- Employees
- 201–500
- Founded
- 2012
- Business Model
- B2B
- Website
- bostonmetal.com
- Total Funding
- $505.0M
- Last Round
- $51.0M Convertible NoteJul 2025
- Rounds
- 6
About
Boston Metal is commercializing Molten Oxide Electrolysis (MOE), an electrified tonnage metals platform technology to produce low-carbon steel from iron ore and recover critical metals from mining and industrial waste. Scalable and modular, MOE transforms metals production sustainably. Headquartered in Woburn, Massachusetts, with a subsidiary in Brazil.
Summary
Boston Metal is a Climate Tech company based in Boston, United States, founded in 2012. It has raised $505.0M in total across 6 rounds, most recently a $51.0M Convertible Note round in Jul 2025. Investors include Marunouchi Innovation Partners, Breakthrough Energy Ventures and ArcelorMittal.
Tech & App Stack
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Funding History
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Jul 2025
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Series B through Convertible Note — per-round amounts, valuations, and who invested in each round.
Investors
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