ArcLight Capital Partners is a Boston-based infrastructure investment firm founded in 2001 that pursues an operationally intensive investment strategy in private markets. The firm concentrates its capital on energy infrastructure assets, with particular emphasis on critical infrastructure connected to electrification and the energy transition, including power generation, renewable energy, battery storage, and strategic gas infrastructure.
The firm's investment approach relies on embedded technical, operational, and commercial specialists who work to source, manage, and optimize infrastructure assets throughout the investment lifecycle. This model reflects a conviction that value creation in infrastructure requires sustained operational engagement beyond conventional financial engineering.
ArcLight targets infrastructure opportunities positioned to benefit from structural energy transition trends, including lower-carbon power assets, renewable infrastructure, and battery storage systems. The firm integrates environmental and social governance principles into its investment framework and emphasizes managing environmental and operational risks as core components of portfolio stewardship. Its focus spans both transformative new infrastructure and optimisation of existing assets within its investment universe.