Mr Jonas is a former Managing Partner and National Chairman of Pitcher Partners, a national association of independent accounting firms across Australia. Tim holds several directorships and provides business advice to several of businesses particularly in the agribusiness sector. Tim is currently a director and treasurer of the Australian Stockman's Hall of Fame and Heritage Centre (Longreach Queensland), chair of Daniel Robertson Pty Ltd (property holdings), and was formerly director and chair of Yarra Valley Caviar Pty Ltd (fish farms and caviar production), director of Silvan Australia Pty Ltd (farm machinery), and director and treasurer of the Essendon Football Club Limited. He currently chairs the Risk Committee.