StepStone Group

Activity from announced rounds

Activity in this selectionOct 24, 2026 · Industrial tech · Jan 1, 2026

StepStone Group is a private-markets investment manager whose venture and growth platform spans seed through growth equity, combining fund investments, direct investments and secondaries.

Its direct investment practice uses relationships with venture and growth fund managers, proprietary data and a global team to evaluate companies. This sits alongside its role as an investor in those managers’ funds.

The platform can participate in new company financings and in secondary transactions involving existing ownership. Founders should distinguish the capital needs of the business from shareholder liquidity when considering which part of StepStone’s investment model is relevant.

Sources
Rounds participated in
5
Confirmed lead rounds
0
3 roles undisclosed
New companies
5
First participation on record · 0 follow-on
Funding in participating rounds
$4.9B
4 disclosed · full round size, not this investor’s share

By stage

Series C+2
Series A1
Series B1
Undisclosed1

By primary sector

Climate tech2
Industrial tech2
AI1

By country

United States5

Rounds

5 in this selection
Crusoe

AI infrastructure combining GPU cloud services, managed AI tools, large-scale data centers and modular AI factories for model developers and enterprises.

$3.9BSeries F (initial close; anticipated total)
Participant
Mariana Minerals

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

$310MSeries B
Role not disclosed
Antora Energy

Antora Energy makes thermal batteries that store electricity as heat in carbon blocks and deliver continuous energy to industrial facilities and other large users.

$550MSeries C
Participant
Standard Nuclear

Produces TRISO nuclear fuel for advanced nuclear reactors

$140MSeries A
Role not disclosed
Hadrian

Builds highly automated factories producing defense and aerospace systems

UndisclosedUndisclosed
Role not disclosed