Startup · United States

Hertha Metals

HQ United States

Company developing a single-step process for steel and high-purity iron production, including iron for rare-earth magnet manufacturers.

Funding2 rounds · $134M

Funding rounds
Announced	Stage	Amount	Valuation	Lead investors	Other investors	Confidence
Sep 29, 2026	Series A	$134M	—	Doerr Capital, Khosla Ventures	Clean Energy Ventures, Pear, Siemens Financial Services, Toyota Ventures, U.S. Department of Defense	Confirmed
Jul 22, 2025	Seed	Undisclosed	—	—	Clean Energy Ventures, Khosla Ventures, Pear	Reported

Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.

1
CompanyAbout - Hertha Metals
Hertha Metals · Supports Organization · description, Organization · name, Organization · website
“Dr. Laureen Meroueh is the Founder and CEO of Hertha Metals, a venture-backed startup developing novel technology to modernize iron and steel production with greater efficiency, scalability, and cost-effectiveness. She is also the inventor of Hertha’s proprietary pyrometallurgical process, which underpins the company’s breakthrough approach.”
2
DatabaseSixth-Domain public startup directory
Sixth-Domain · Supports Organization · kind
“{"group": "startups", "id": "921fe483-46fa-4e01-aee8-da8b4eea8351", "name": "Hertha Metals"}”

3
DatabaseHertha Metals - Caplight company profile
Caplight · Oct 6, 2026 · Supports Funding round
“Jul 22, 2025”
4
DatabaseHertha Metals - PitchBook company profile
PitchBook · Oct 6, 2026 · Supports Funding round
“22-Jul-2025”
5
CompanyHertha Metals Secures $133.65M Series A
Business Wire (Morningstar) · Sep 29, 2026 · Supports Funding round, Funding round · amount, Funding round · investors, Organization · country, Organization · description, Organization · hq city
“We led their seed round to back this vision”

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