Union Asset Management Holding AG (German pronunciation: [uˌni̯oːn ɪnˈvɛstmɛnt] ⓘ) is the investment arm of the DZ Bank Group and part of the cooperative financial services network.

Trading in open-end funds occurs in part through the 1,101 credit unions in Germany (Volksbanken Raiffeisenbanken Co-operative, including Sparda-Banks, PSD-banks, etc.

)[3] and in part through the external services of Bausparkasse Schwäbisch Hall AG, DZ Bank Group's building society.

Starting on 15 January 2007, DIFA did business under the name Union Investment Real Estate AG; in 2009 it was converted to a GmbH.

In April 1994 Union Investment began offering stock-based wealth management with three strategic variants: chance, growth and security.