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Callsign

Real-time authentication platform

Callsign logo
201-500 employees
  • B2B
  • Artificial Intelligence
  • Security
  • Deep Tech
  • Machine Learning
  • Identity
City of London, London, UK

Company mission

To seamlessly power the identification of every web, mobile and physical interaction.

Top investors

18% employee growth in 12 months

Our take

Callsign uses deep learning technology to analyse a variety of real time signals such as the GPS location, force of touch and screen co-ordinates to identify potentially suspicious usage of a device. Collaborating with Lloyds bank, the company's technology helps to mitigate unauthorised access while providing a seamless user experience.

Callsign is not the only company in this area, and faces competition from other firms such as AimBrain, Behaviosec, and BioCatch. To stand out, its AI system takes into account a combination of different factors to improve its accuracy and reliability. It has also built security in, with all data encrypted on the device itself before being sent to the server.

Steph headshot

Steph

Company Specialist at Welcome to the Jungle

Benefits

  • Health & wellbeing - From health insurance to discounted gym memberships to childcare vouchers, we constantly invest in the health and wellbeing of our teams
  • Learning - Collective growth is one of our core values. Learning opportunities and learning support are core to the Callsign experience
  • Family benefits - As well as personal health and wellbeing benefits, we also offer various other discounts like home utilities and childcare vouchers
  • Holidays - In addition to 25 days annual leave (on top of bank holidays), you'll also get an additional Callsign bank holiday in June
  • Flexible working hours - We've all got different priorities and pressures in our lives. Our flexible working policy will help lighten the load
  • Multiple locations - We know that different people work best in different environments – that's why we offer opportunities for flexibility in your working environment

Company values

  • Purpose-led - We share the common belief that we can make the world a better place. With all eyes on the future, we emphasize discovery, expansion, and continuous innovation
  • Accountable - Our progress is built on a deep understanding of the digital world, and the people who inhabit it. Integrity, trust and transparency underpin all of our actions
  • Collective Growth - We’re all in this together – and together we inspire progress through education, innovation, and collaborative exploration

Funding (last 2 of 4 rounds)

Jun 2023

$71.5m

LATE VC

Jul 2017

$35m

SERIES A

Total funding: $110.2m

This company has top investors

Leadership

Previously held positions at Accenture, BAE Systems and Lloyds, where he designed and delivered critical military and financial information systems.

People progressing

Joined as Digital Identity Senior Product Owner, and promoted to Head of Partnerships & Business Development after 1 year and then again to Commercial Director after 1 year and 4 months.