
The Infrastructure Podcast Infrastructure investment strategies with Mark Gilligan
Jul 21, 2025
Mark Gilligan, head of AXA IM Alts' infrastructure equity platform, oversees multi‑billion euro investments across energy, digital and transport with a focus on decarbonisation. He discusses the shift to active build‑and‑invest strategies, evergreen long‑term funds, why batteries and solar now fit the plan, the Colburn battery and Ilos solar plays, rail electrification with green locomotives, and policy and delivery hurdles for scaling projects.
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From Buying Antiques To Building 21st Century Infrastructure
- Infrastructure investing has shifted from buying mature assets to building new 21st century systems.
- Mark Gilligan describes moving from buying 'antiques' in 2015 to financing fiber, renewables, storage, and electrification today.
Use Evergreen Structures For Decades-Long Assets
- Take a long-term investing approach for infrastructure rather than a private equity five-to-eight year flip.
- AXA IM Alts offers evergreen investments so they can buy and then invest in companies across 5, 10 and 15 year plans.
Climate Alignment As Primary Investment Filter
- Climate change is the central long-term risk and opportunity guiding asset selection.
- AXA IM Alts excludes assets without credible paths to net zero and focuses on digital, energy, social and transport aligned to decarbonisation.



