Devon pipped fellow finalists Salt Funds Management and ANZ Investments to be named top equities manager in 2015.
The judges said Devon's team had a special knack for communicating investment strategy and "always impressed" when discussing stock selection.
The Auckland-based firm manages more than $1 billion on behalf of clients including the New Zealand Superannuation Fund, community trusts, charities, KiwiSaver schemes and individual investors.
"Devon clearly articulate why they hold the stocks they do, leaving the investor confident with where they have chosen to invest," the judges said.