In Poland, investment funds operate under the provisions of the act of 27 May 2004 on investment funds and management of alternative investment funds. In  accordance  with this act, investment funds may be created as an open-end investment fund (UCITS), specialized open-end investment fund or a closed-end investment fund (AIF). This act significantly broadened the range of investment funds by adding new products, such as umbrella funds, funds of funds, master-feeder funds, funds with various participation unit categories, money market funds, securitization funds, exchange traded funds and non-public asset funds, the latter being created to foster the growth of the private equity sector in Poland.

An organization which brings together, on a voluntary basis, the fund management companies operating in Poland is called the Chamber of Fund and Asset Management.

At the end of June 2025, there were 570 investment funds managed by 56 investment fund management companies. The value of assets managed by investment fund management companies at the end of June 2025 was PLN 520 billion, including assets of managed funds and funds in liquidation of PLN 445 billion.