3i Group Plc is an investment manager, which engages in the provision of private equity and infrastructure. It operates through the following segments: Private Equity, Infrastructure, and Others. The Private Equity segment involves in the investment and asset management to generate capital returns. The Infrastructure segment includes investing in economic infrastructure and greenfield projects in developed economies. The Others segment relates to the residual debt management investments. The company was founded in 1945 and is headquartered in London, the United Kingdom.