I Squared Capital
About
I Squared Capital I Squared Capital is a major global infrastructure PE firm with $50B+ in AUM (November 2025). ISQ Fund III closed at $15.5B (2022). The portfolio spans 90+ companies across 70 countries with 66,000+ employees. Focus areas include energy infrastructure, utilities, transport/logistics, digital infrastructure, and environmental/social infrastructure. Notable deals include Arriva (UK rail from Deutsche Bahn), Viridian (Irish power, €1B), and Lincoln Clean Energy (sold to Ørsted for
Industries
Stage focus
Series B+
Geography
USEurope
Raising from I Squared Capital?
I've worked with founders across the industrial stack. If I Squared Capital is on your list, I can help you map the introduction path, sharpen the narrative, and run a tight process.
Talk to Dan