Boston-based Eagle Investment Systems LLC said Tuesday that Fiera Capital Corp. (TSX: FSZ), a Montreal-based full-service investment management firm with approximately $55 billion in assets under management, will implement Eagle’s financial services technology throughout its business.

Fiera’s relationship with Eagle was extended through the acquisition of long-time Eagle client, Natcan Investment Management.

Fiera Capital is integrating Natcan’s deployment of Eagle’s data management and performance measurement software, and multi-lingual portal to its current infrastructure. The firm is also adding $30 billion in assets to the Eagle platform while migrating to Eagle’s secure private cloud.

Fiera announced its acquisition of Natcan in April 2012, making the firm one of the largest independent asset managers in Canada. With $25 billion in assets under management, Natcan was formerly a subsidiary of National Bank of Canada, providing asset management services to pension funds, mutual funds, insurance companies, exchange-traded funds, foundations and other institutional clients. Natcan has been an Eagle client since 2005.

Eagle is a subsidiary of BNY Mellon, a global financial services company focused on helping clients manage and service their financial assets, operating in 36 countries and serving more than 100 markets. BNY Mellon is the corporate brand of The Bank of New York Mellon Corp. (NYSE: BK).