C
Callsign
Real time AI driven Identity and Authentication Solutions, that confirm the user really is who they say they are, at work and at home
About Callsign
Callsign is a startup that operates in the financial technology sector, providing a platform that enhances customer transaction experiences. The company's primary focus is to streamline and secure transactions, making them as convenient as possible for customers. This is achieved through the use of intelligently orchestrated journeys that are simple to use and deploy.
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The company's clients are primarily businesses that are looking to improve their customer experience, particularly in the area of transactions. Callsign's platform allows these businesses to control and customize the customer journey, with the ability to test, improve, and release as needed. This flexibility makes the solution nimble and light, often going unnoticed by the end customer, which is a testament to its seamless integration.
Callsign's business model is built around the use of powerful, ethical artificial intelligence (AI). AI is a technology that enables machines to mimic human intelligence. In Callsign's case, it is used to enhance the customer transaction experience. The company generates revenue by providing its AI-powered platform to businesses.
The market that Callsign operates in is vast and growing, as more and more businesses recognize the importance of a smooth and secure transaction experience for their customers. The company's focus on ethical AI also positions it well in a market increasingly concerned with the ethical implications of AI use.
At a glance
- Founded
- 2011
- Headquarters
- London, United Kingdom
- Sector
- Cybersecurity
- Power Law
- Colt$25–100M revenue
Knowledge graph
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
- TETerry Eger
Breed Reply
Series A5 investors entered at this stage
Qualcomm Ventures
PTB Ventures
Accel
AllegisCyber Capital
NightDragon
Series B and later1 investor entered at this stage
Abu Dhabi Investment Office
Source: Dealroom Talent Intelligence.
Global footprint
team presence
across markets
Market sentiment
An AI-synthesised read of the highest-engagement posts about Callsign on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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