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Breakthrough Energy Ventures | RoundOS

01 · Free data roomBuild, share and track important documents.

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Sales deals Board documents Due diligence Real estate

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BE

Breakthrough Energy Ventures

Activity from announced rounds

Activity in this selection View all activity

Activity in this selectionUnited States · Aug 31, 2026 · Aug 1, 2026

Rounds participated in: 1
Confirmed lead rounds: —
New companies: 1
Funding in participating rounds: $310M

By stage

Series B1

By primary sector

Industrial tech1

By country

United States1

Rounds

1 in this selection

Aug 3

Mariana Minerals

Builds and operates AI-driven mines and refineries for critical minerals

$310MSeries B

Role not disclosed

1–1 of 1

Most frequent co-investors

Andreessen Horowitz (a16z)1 shared BHP Ventures1 shared Earthshot Ventures1 shared General Innovation Capital Partners1 shared Greenoaks1 shared Greycroft1 shared Halo Fund1 shared In-Q-Tel1 shared Khosla Ventures1 shared Mitsubishi Corporation1 shared

RoundOS

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Fundraising hub Pre-seed fundraising Seed fundraising Series A fundraising Fundraising follow-up Investor research Investor updates Integrations

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