​Portfolio Advisors is a global private asset management firm specializing in private equity, private credit, and private real estate investments. Established in 1994, the firm focuses on the U.S. middle market, offering tailored investment solutions through direct, secondary, and primary investments.

In 2023, Portfolio Advisors merged with FS Investments, creating a combined entity managing over $78 billion in assets, with a team of more than 600 employees across offices in the U.S., Europe, and Asia. The firm emphasizes responsible investing by integrating Environmental, Social, and Governance (ESG) factors into its investment processes. ​