The company's primary subsidiaries include Ameriprise Financial Services, Inc. , Columbia Management Investment Advisers, LLC, and RiverSource Life Insurance Company. Threadneedle Asset Management is Ameriprise Financial's international asset manager, and a provider of investments to institutional and retail clients.n January 2013, Ameriprise Financial completed the conversion of its federal savings bank subsidiary, Ameriprise Bank, FSB, to a limited powers national trust bank, which conversion included changing the name of this subsidiary to Ameriprise National Trust Bank.