David Zeff

David Zeff is the CEO of Whistle, where they specialize in helping companies acquire customers through effective sales and marketing strategies. With over a decade of experience in selling technology to various SMB and enterprise sectors, David has contributed to significant business growth, including leading two successful exits. As a strategic advisor at Sinorbis, they focus on building enterprise sales teams and processes to achieve business objectives. David's previous roles include Vice President of Sales at Graduway and Head of Sales at Exceed.ai, where they developed groundbreaking sales frameworks and drove substantial funding efforts. David holds a degree from Macquarie University, graduating with a perfect GPA.