Insights

Fintech Partnerships Leverage Callsign's Visa collaboration and fintech ecosystem to co-sell digital trust and identity proofing solutions to banks, payments firms, and fintechs seeking frictionless onboarding and strong anti-fraud controls. Position the platform's high accuracy user recognition and Dynamic Interventions as differentiators to reduce onboarding drop-off and prevent fraud in high value accounts. Consider joint marketing and integration strategies with Visa Fintech Partner Connect and no-code workflows via partners like SpecTrust to speed deployment.

Education Channel Capitalize on education oriented initiatives with State Talking and The Knoble to target schools, universities, and volunteer organizations requiring trusted identity management for students, staff, and external contributors. Offer compliant identity verification, access governance, and pro bono pilots to win initial deployments, then scale into district programs and non profit networks with demonstrated risk reduction and privacy safeguards.

Platform Capabilities Position Callsign as an end to end digital trust platform with orchestration driven Dynamic Interventions for real time risk based authentication and automated interventions. Emphasize no code or low code integration through existing partners to shorten procurement cycles for large enterprises in financial services, telecoms and ecommerce, enabling faster deployment and lower total cost of ownership.

Market Credibility Use industry recognition such as leadership in product vitals and high profile partnerships to accelerate deals with mid market and enterprise buyers. Build reference use cases in financial services and education to support regulatory and privacy narratives and shorten sales cycles through credibility and proven outcomes.

Global Growth Target global banks and multinational corporations with a scalable security platform that supports regional regulatory requirements via the orchestration engine. Expand partner ecosystems with system integrators and managed service providers to accelerate international deployments, starting from the London base to broaden EMEA coverage and pursue US opportunities.

Callsign Tech Stack

Callsign uses 8 technology products and services including Zipkin, Continuous Delivery, XML, and more. Explore Callsign's tech stack below.

  • Zipkin
    Analytics
  • Continuous Delivery
    Continuous Integration
  • XML
    Data Management
  • DocuSign
    Miscellaneous
  • Microsoft Office
    Office Suites
  • Ruby
    Programming Languages
  • Scala
    Programming Languages
  • Google Tag Manager
    Tag Management

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

Where is Callsign's headquarters located?

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Callsign's main headquarters is located at London, England United Kingdom. The company has employees across 4 continents, including EuropeAsiaNorth America.

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 NAICS code?

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Callsign's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does Callsign have currently?

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As of May 2026, Callsign has approximately 274 employees across 4 continents, including EuropeAsiaNorth America. Key team members include Chief Revenue Officer: L. C.Chief Information Officer: A. P.Chief Revenue Officer: S. O.. 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 ZipkinContinuous DeliveryXMLDocuSignMicrosoft OfficeRubyScalaGoogle Tag Manager.

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 a London, England, United Kingdom-based company in the computer and network security industry, employing between 201 and 500 people. It develops digital-trust solutions that mimic human identification to distinguish genuine users, aiming to provide privacy and security with minimal friction while blocking bad actors. The company reports that its user recognition can reach up to 99.999% accuracy. It has formed partnerships with Visa in 2023 and with State Talking in 2026, and was named a Leader in Product Vitals in Javelin Strategy & Research's 2024 Authentication and Identity-Proofing Vendor Solutions Scorecard. Reported revenue is in the range of $25 million to $50 million, and its technology stack includes Zipkin, Continuous Delivery, XML, DocuSign, Microsoft Office, Ruby, Scala, and Google Tag Manager.

Section iconCompany Overview

Headquarters
London, England United Kingdom
Phone number
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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