About Us

Callsign is deployed to millions of users globally in enterprises, financial institutions and consumer-facing digital services including some of the world’s largest banks.

Founded in 2012, Callsign’s mission is to seamlessly power the identification of every web, mobile and physical interaction. To do this we hire the brightest, most inquisitive minds who want to change the rules of identity and make this mission a reality. Callsign products use deep learning techniques to combine event, threat, and behavioural analytics with multi-factor authentication, securing access to services whilst uniquely ensuring the most frictionless and transparent user experience. We provide risk intelligence in real time, enabling organizations to intelligently adjust authentication journeys, also in real time. By pinpointing suspicious access attempts, we can step up and step down the authentication requirement, catching fraudulent activity more effectively while simultaneously removing friction for legitimate users.

Apart from looking to keep people safe from bad guys, we are also looking to make their digital lives better with ubiquitous technology that works for all, regardless of circumstance.

Our Values

We strongly believe our values are what set us apart, and have worked across our organization to define them, making sure they are a true reflection of us on our best days.


From challenging the status quo and driving an Identity Revolution, to building a world that protects user identities, we always set the bar high.


To deliver what we say we will, we’ve got to be the best at what we do, while making sure there’s an artistry to our expertise.


We’re determined to defend our customers against the bad guys, making identification safe and easy for everyone.


This is the reason we do what we do – to protect identities without ever betraying trust.


Building a community at work, a community of partners and customers, and supporting the wider community outside of Callsign, really, really matters to us.

Our Partners

  • Partner logo Microsoft
  • Partner logo Temenos
  • Partner logo Accenture
  • Partner logo BT
  • Partner logo Deloitte
  • Partner logo KPMG
  • Partner logo Fidor
  • Partner logo PWC
  • Partner logo Inlaks
  • Partner logo Identity Methods