Insights

Strong Industry Recognition Callsign's recent recognition as a Leader in Product Vitals by Javelin Strategy & Research highlights its credibility and market leadership in digital identity verification, making it an appealing solution for financial institutions seeking reliable authentication providers.

Strategic Partnerships Collaborations with Visa and local partners demonstrate Callsign's ability to expand its reach in both global and regional markets, providing opportunities to leverage these relationships for upselling advanced fraud prevention and identity solutions.

Regulatory and Security Focus The company's emphasis on digital trust and anti-fraud initiatives aligns well with the increasing regulatory pressures and security needs faced by financial services, opening avenues for tailored solutions for banks, fintechs, and other regulated entities.

Innovative Product Offerings With recent launches like Dynamic Interventions and Orchestration Engine, Callsign continuously enhances its platform, offering prospects for upselling new modules to existing clients and attracting organizations looking for cutting-edge security technology.

Financial Growth Potential With a revenue range of 25 to 50 million dollars and a focused client base in the digital identity space, Callsign presents opportunities to target mid-market financial firms and fintechs seeking scalable and high-fidelity user authentication solutions to reduce fraud and improve user experience.

Callsign Tech Stack

Callsign uses 8 technology products and services including Hotjar, PostgreSQL, Kubernetes Operations, and more. Explore Callsign's tech stack below.

  • Hotjar
    Analytics
  • PostgreSQL
    Database
  • Kubernetes Operations
    Deployment
  • tcpdump
    Network Management
  • macOS
    Operating Systems & Computing Languages
  • Kotlin
    Programming Languages
  • Android
    Programming Languages
  • RabbitMQ
    Software Framework

Media & News

Callsign's Email Address Formats

Callsign uses at least 1 format(s):
Callsign Email FormatsExamplePercentage
First.Last@callsign.comJohn.Doe@callsign.com
96%
First.Middle@callsign.comJohn.Michael@callsign.com
3%
First@callsign.comJohn@callsign.com
1%

Frequently Asked Questions

What is Callsign's phone number?

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You can contact Callsign's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Callsign's official website and social media links?

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Callsign's official website is callsign.com and has social profiles on LinkedInCrunchbase.

What is Callsign's SIC code NAICS code?

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Callsign's SIC code is 4813 - Telephone Communications, Except Radiotelephone NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Callsign have currently?

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As of December 2025, Callsign has approximately 264 employees across 4 continents, including EuropeAsiaNorth America. Key team members include Cmo And Head Of Go To Market Strategy: S. W.Chief Revenue Officer: L. C.Chief Information Officer: A. P.. Explore Callsign's employee directory with LeadIQ.

What industry does Callsign belong to?

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Callsign operates in the Computer and Network Security industry.

What technology does Callsign use?

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Callsign's tech stack includes HotjarPostgreSQLKubernetes OperationstcpdumpmacOSKotlinAndroidRabbitMQ.

What is Callsign's email format?

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Callsign's email format typically follows the pattern of First.Last@callsign.com. Find more Callsign email formats with LeadIQ.

When was Callsign founded?

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Callsign was founded in 2011.

Callsign

Computer and Network SecurityEngland, United Kingdom201-500 Employees

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 whilst 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.

Section iconCompany Overview

Phone number
SIC Code
4813 - Telephone Communications, Except Radiotelephone
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2011
Employees
201-500

Section iconFunding & Financials

  • $25M$50M

    Callsign's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Callsign's revenue is estimated to be in the range of $25M$50M

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