Hertha Metals
Develops a continuous process for producing iron and steel from different ore grades using natural gas or hydrogen.
$133.7MSeries A
ParticipantGF
Gates Frontier
Activity from announced rounds
Activity in this selectionOct 17, 2026 · Jul 20, 2026
Gates Frontier is the investor named in LifeMine and Mazama announcements, with Mazama’s relationship also confirmed by co-investor commentary.
Recorded funding activity
Mazama develops engineered geothermal reservoirs in very hot rock. LifeMine develops medicines using fungal genomes, while Hertha works on continuous iron and steel production. The investor remains distinct from Gates Foundation, Gates Ventures and Breakthrough Energy.
- Rounds participated in
- 3
- Confirmed lead rounds
- 0 1 roles undisclosed
- New companies
- 3 First participation on record · 0 follow-on
- Funding in participating rounds
- $531.7M 3 disclosed · full round size, not this investor’s share
By stage
By primary sector
By country
Rounds
3 in this selectionMazama Energy
A geothermal developer building enhanced geothermal systems that create engineered reservoirs in very hot rock to deliver round-the-clock electricity.
$135MSeries B
ParticipantLifeMine Therapeutics
Develops fungal genome-derived therapeutics for organ transplant rejection
$263MSeries D+Series E
Role not disclosed