signal/raiseTrack rounds
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StepStone Group

Focus: AI, Climate & energy

StepStone Group took part in 5 of the startup funding rounds we tracked in 2026. By money raised, its biggest sectors were AI and Climate & energy. The largest was xAI's $20bn Series D+ round. The most recent was SiMa.ai's Series C round in September 2026.

Deployed as lead$0k
Rounds led0
Rounds joined5
Largest round$20bn

Also invested (5)

SiMa.aiSeries C · AI · San Jose · 28 Sep$150mCrusoeSeries D+ · AI · Denver · 17 Sep$3.9bnClaySeries D+ · AI · New York · 9 Sep$115mAntora EnergySeries C · Climate & energy · San Jose · 30 Jul$550mxAISeries D+ · AI · Palo Alto · 6 Jan$20bn

By sector

AI$24.17bnClimate & energy$550m

By stage

Series C$700mSeries D+$24.02bn

Co-investors

Valor Equity Partners2 roundsNVIDIA2 roundsQatar Investment Authority2 roundsActivate Capital2 roundsRibbit Capital2 roundsSalesforce Ventures2 roundsFidelity1 roundDell Technologies Capital1 roundPoint721 roundBaron Capital1 round