3I Corporation

3i Corporation provides investment supervisory services primarily to pooled investment vehicles, including middle‑market private equity funds and North American value‑add infrastructure funds, and also furnishes non‑discretionary advice to affiliated managers such as 3i Investments plc. Services include sourcing, structuring, monitoring and disposing of fund investments rather than individual retail advisory relationships.

The firm’s investment approach emphasizes active, board‑level partnership with management teams and a focus on earnings‑driven value growth over leverage for private equity investments, while its infrastructure strategy targets core‑like, value‑add middle‑market opportunities using a structured sourcing, diligence and investment‑committee process. Portfolio monitoring is described as ongoing and hands‑on, with periodic in‑depth reviews and regular reporting to fund investors.

What is distinctive about 3i Corporation relative to many peers is the composition of its regulatory assets: as of March 31, 2025 the adviser reports approximately $2.10 billion managed on a non‑discretionary basis versus about $533.8 million managed on a discretionary basis, reflecting an uncommon emphasis on advising other managers and funds rather than holding discretionary mandates directly. The adviser is also an indirect, majority‑owned subsidiary of publicly traded 3i Group plc and explicitly documents arrangements to advise affiliated investment managers and to provide services to affiliated and employee vehicles, a service model that is less common among investment managers in this category.