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50 Renewable Energy Private Equity Firms (2026)

I Squared Capital

Tier 2: infrastructure & energy specialistsdevelopment, value‑add, buyout

Platform development approach across energy, utilities, transport, and digital with strong presence in growth markets.

Relevant AUM / Platform Scale
>$50B
Headquarters / Location
Global
Founded
2012
Latest Fund / Vehicle
ISQ Global Infrastructure Fund IV/V (~$10B raised)

Focus Sectors & Technology

energyutilitiestransportdigital

Key Investments & Platforms

  • Global platforms