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
ParticipantSG
StepStone Group
Activity from announced rounds
Activity in this selectionOct 24, 2026 · Hardware · Jul 27, 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.
- Rounds participated in
- 4
- Confirmed lead rounds
- 0 1 roles undisclosed
- 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
By primary sector
By country
Rounds
4 in this selectionFab2
Fab2 develops chipmaking equipment and design software to shorten the path from chip design to fabrication.
$500MSeries A
ParticipantVelaura AI
Develops ultra-low-power silicon for AI data centers and Physical AI systems
$110MSeries A
Role not disclosedAntora 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