Callsign Raises $35m in Series A Funding

Callsign, a London, UK-based artificial intelligence-powered authentication platform, raised $35m in Series A funding.

The round was led by Accel and early-stage investor PTB Ventures with participation from Allegis Capital and cybersecurity industry veteran David DeWalt’s NightDragon Security. In conjunction with the funding, Harry Nelis, Partner at Accel, Bob Ackerman from Allegis Capital and Dave Fields from PTB Ventures, will join Callsign’s board.

The company intends to use the funds to grow the business, expanding globally, with a particular focus on the US and Far East, with plans to open offices in both the Bay Area and New York City in the next few months, and building out its engineering and commercial teams as well, including sales, marketing and business development roles.

Founded in 2012 by Zia Hayat, CEO, Callsign has developed a deep learning-based authentication platform called Intelligence Driven Authentication™ (IDA), which enables enterprises to select the most secure and least invasive authentication journey for each user in real-time, based on their risk profile and tendencies, adapting the type of authentication to the situation and virtually eliminating threats such as spear phishing.
While Callsign can be deployed with out-of-the box mobile authenticators, it is an open platform to which enterprises can plug-in existing authenticators or data sources. The solution has also integrated with several Identity and Access Management providers, like ForgeRock.

Clients are enterprises, financial institutions and consumer-facing digital services and include some of the world’s largest banks, such as Lloyds Bank and Deutsche Bank.



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