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StepStone Group

Activity from announced rounds

Activity in this selectionOct 17, 2026 · Jul 20, 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
6
Confirmed lead rounds
0
2 roles undisclosed
New companies
6
First participation on record · 0 follow-on
Funding in participating rounds
$1.2B
5 disclosed · full round size, not this investor’s share

By stage

Series C+4
Series A1
Series B1

By primary sector

AI3
Climate tech1
Hardware1
Industrial tech1

By country

United States6

Rounds

6 in this selection
SiMa.ai

SiMa.ai builds a full-stack physical AI platform that combines purpose-built silicon and software to help developers deploy machine learning on real-world devices.

$150MSeries C
Participant
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
Participant
Clay

A go-to-market platform that combines customer and prospect data with AI research and automation tools for revenue teams.

$115MSeries D
Participant
Velaura AI

Develops ultra-low-power silicon for AI data centers and Physical AI systems

$110MSeries A
Role not disclosed
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