The win comes after a pitch against four other undisclosed agencies. iProspect will begin working with NAB in March, with the appointment also including MLC and UBank.
The finance and banking category is competitive for search, with banks competing over a limited pool of keywords.
“Both NAB and iProspect are digital pioneers," said Dan Kalinski, managing director iProspect Australia. The pitch process was a "meeting of minds" over strategy and approach to SEM, he added.