Quinbrook Infrastructure Partners

Investment decisions are led by co-founders and managing partners Rory Quinlan and David Scaysbrook, who remain active in deal sourcing and portfolio management. The firm uses a sector-specialized investment committee structure. Both principals have backgrounds in infrastructure finance at Babcock & Brown and other firms (per public record).

Quinbrook sources deals through direct developer relationships, long-term partnerships with energy companies, and its own in-house development team. The firm often incubates projects from early stages, which provides proprietary access. Its network spans regulators, utilities, and technology partners across key markets.

Quinbrook is structured as an independent asset manager, not a family office. It operates a traditional fund structure with institutional limited partners, including pension funds, endowments, and sovereign wealth funds. The firm has raised multiple closed-end infrastructure funds.

The firm targets mid-market control and co-control investments, typically in operational assets or late-stage development projects. It also engages in greenfield development via its in-house team. Sector focus is exclusively on energy transition and critical infrastructure, avoiding growth equity or venture-stage deals.

Quinbrook primarily makes direct investments, but also manages separate accounts and co-investments alongside limited partners. It does not operate fund-of-funds or primary fund commitment strategies. The firm's credit arm provides debt solutions to infrastructure projects.

Quinbrook avoids fossil fuel extraction, pipeline infrastructure, and consumer-facing assets. Its mandate is strictly focused on energy transition, renewable power, and enabling grid infrastructure. The firm also avoids leveraged buyouts or distressed turnaround situations.

Quinbrook is not a family office; its capital base comes from institutional limited partners. The co-founders' personal wealth is derived from their prior careers in infrastructure finance and their equity in the firm. No single-family wealth or dynasty fortune backs the firm.