Hertha Metals
Conroe, Texas, United States
◆ Total Raised
$133.7M
◆ Stage
series-a
◆ Location
Conroe, Texas, United States
◆ Founded
2022
◆ Team size
11-50
◆ Links
◆ About Hertha Metals
Texas-based startup developing FLEXHERS technology for high-purity iron production using flexible fuel hydrogen electric reduction smelting.
◆ What sets it apart
Its Flex-HERS platform can process any grade of iron ore or waste oxide in a semi-continuous single-step system, enabling cheaper and cleaner high-purity iron production.
◆ Sectors
◆ Business
Modelhardware
CustomerDomestic steel users and rare-earth magnet manufacturers
◆ Notable
- Closed a $133.65M Series A round in 2026
- Received a $65M U.S. government equity investment through IBAS
- Built and demonstrated a pilot facility in Conroe, Texas
- Planned Hertha Chalyx facility to produce 10,000 tonnes of steel-grade and magnet-grade high-purity iron
◆ Backing funds on Raise
- Toyota Venturesseries-a
- Khosla Ventures Fundsseries-a
◆ Funding rounds
29 Sept 2026
Led by Khosla Ventures, Doerr Capital
With CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund, Toyota Ventures, Siemens Financial Services, U.S. government (Industrial Base Analysis and Sustainment program)
◆ Explore the market
◆ FAQ
What does Hertha Metals do?
Texas-based startup developing FLEXHERS technology for high-purity iron production using flexible fuel hydrogen electric reduction smelting.
Where is Hertha Metals based?
Hertha Metals is based in Conroe, Texas, United States, founded in 2022.
How much has Hertha Metals raised?
Hertha Metals has raised $133.7M in tracked funding and is currently at the series-a stage.
Who has invested in Hertha Metals?
Investors in Hertha Metals include Khosla Ventures, Doerr Capital, U.S. Government (IBAS), CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund and Toyota Ventures.