Quinbrook Infrastructure Partners

David Scaysbrook and Rory Quinlan serve as co-founders and managing partners, leading the firm's investment committee. Both previously led Babcock & Brown's North American and Australian infrastructure activities before its collapse in 2009. The firm maintains a dedicated investment team across its offices, though specific composition is not publicly detailed.

Quinbrook combines a traditional fund origination model with an in-house development and asset management team that identifies and structures projects from the ground up. This vertically integrated approach allows the firm to access early-stage development opportunities in renewables, power grids, and industrial decarbonization that may not be available through competitive auction processes.

Quinbrook is structured as a specialist infrastructure asset manager, not a family office. It manages institutional capital through commingled funds and separate accounts, with a permanent capital base from pension funds and endowments. The firm does not manage wealth for any single family and is not a family office.

Quinbrook primarily makes direct infrastructure investments through its commingled funds, such as the Quinbrook Net Zero Power Fund, which closed at $3.6 billion in January 2025. The firm also engages in co-investments alongside institutional limited partners and structures separate accounts for certain clients, but it does not operate as a fund-of-funds.

Quinbrook targets mid- to late-stage infrastructure assets, including new-build projects under construction, operational assets, and expansion-stage energy infrastructure. The firm does not typically invest in early-stage venture or technology companies, focusing instead on capital-intensive energy transition projects with predictable cash flows.

Quinbrook focuses exclusively on energy transition infrastructure across three pillars: renewables (solar, wind, battery storage), power delivery (transmission and distribution), and industrial decarbonization (green hydrogen, carbon capture, sustainable fuels). The firm does not invest in fossil-fuel production, general real estate, or unconnected sectors.

There is no public disclosure of a separate philanthropic foundation operated by Quinbrook Infrastructure Partners. The firm's principals may engage in personal philanthropy, but the investment manager itself is structured as a for-profit asset manager with no significant charitable arm visible in public records.