• 2011
  • London, United Kingdom
  • Computer and Network Security


Callsign is pioneering digital trust through proprietary technology that uniquely mimics the way humans identify each other in the real world. Positive identification of genuine users delivers privacy, safety, and minimal friction while ensuring that bad actors are blocked. Through a simple Swipe or Type, users can be personally recognized to a 99.999% accuracy, delivering the highest fidelity AI-based user recognition for the digital world.

Jobs at Callsign