Funding
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Riot Ventures

Activity from announced rounds

Activity in this selectionOct 21, 2026 · Jul 24, 2026
Rounds participated in
4
Confirmed lead rounds
1
All roles disclosed
New companies
4
First participation on record · 0 follow-on
Funding in participating rounds
$1.3B
4 disclosed · full round size, not this investor’s share

By stage

Pre-seed1
Series B1
Series C+1
Undisclosed1

By primary sector

Climate tech2
Logistics1
Space tech1

By country

United States3
Bulgaria1

Rounds

4 in this selection
Parallel Systems

Parallel Systems develops autonomous battery-electric rail vehicles for shorter freight routes on existing railway infrastructure.

$100MSeries C
Participant
American Supercritical

American Supercritical develops modular power equipment that converts waste heat into electricity using supercritical carbon dioxide.

$8MPre-seed
Participant
EnduroSat

EnduroSat designs and manufactures modular, software-defined satellites and components, and provides mission services for commercial and institutional operators.

$205MFunding round
Lead
Valar Atomics

Valar Atomics develops modular nuclear reactors and energy campuses for industrial heat and electricity.

$1BSeries B
Participant