First NZ Capital beat fellow finalists Craigs Investment Partners and Macquarie Equities to be named top sharebroker.
James Lee, First NZ's head of securities, said the broking industry was hyper-competitive and watching Geoff Zame of rival broker Craigs pick up the same award last year had been a "motivating factor".
"The only reason why people improve is because you keep getting pushed and we all push each other every day," Lee said.
First NZ was a joint lead manager of Genesis Energy's initial public offering, the biggest float of 2014.