Melissa Gill has been promoted from head of behavioural strategy to managing partner in its Sydney office. Gill has been with TBA for the past five years.

Sam Paul is joining the agency as managing partner in its Melbourne office. He was previously a senior consultant – employee and customer strategy at Kantar TNS.

Paul’s background is in organisational psychology, specialising in employee engagement and wellbeing, change management, behavioural economics, and voice of customer measurement design and activation.

Australian TBA founder, Mike Daniels, said: "These two people are extraordinary talented, valued by clients and colleagues alike. I am delighted to have such partners to help drive our business – these are exciting times for the application of behavioural science."