Callsign Employee Directory

Q: What is Callsign known for?

Callsign was founded in 2011. Callsign operates in the Computer and Network Security industry.

Q: How many employees does Callsign have currently?

Callsign has approximately 265 employees.

Q: Who are Callsign's key employees and leadership?

Callsign's key employees include: Chairman & Ceo: Z. H., Chief Revenue Officer: L. C., Chief Information Officer: A. P., Chief Revenue Officer: S. O., Chief Security Officer: I. C. C..

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.

Find Callsign employees' phone numbers or email addresses

Callsign Global Highlights

Europe
182

United Kingdom Of Great Britain And Northern Ireland
176
Sweden
4
Italy
1
Ireland
1

Asia
65

United Arab Emirates
43
India
10
Pakistan
6
Philippines
2
Malaysia
2
Singapore
1
Indonesia
1

North America
15

United States Of America
14
Canada
1

Africa
1

South Africa
1

Callsign's Leadership

L. C.
Chief Revenue Officer
Mobile Phone
Email
A. P.
Chief Information Officer
Mobile Phone
Email
S. O.
Chief Revenue Officer
Mobile Phone
Email
I. C. C.
Chief Security Officer
Mobile Phone
Email
G. W.
Chief Financial Officer
Mobile Phone
Email
S. M.
Chief Technology Officer
Mobile Phone
Email
I. C.
Chief Security Officer
Mobile Phone
Email
C. T.
Chief Of Staff
Mobile Phone
Email

Callsign Employee Metrics

100%

50%

2026

2025

Engineering
Operations
Analytics
Consultant
Product Management
Other
Program & Project Management
Supply Chain
Solutions Engineering
Information Technology
Administrative
Research

Contact profiles from Callsign

Name

Title

Contact Info

Location

Last Update

B. V.
Owner
Mobile Phone
Email
UNITED KINGDOMMiddlesex
Oct 31, 2023
I. C.
Chief Security Officer
Mobile Phone
Email
UNITED KINGDOMMiddlesex
Nov 20, 2025
Z. Q.
Head Of Technology
Mobile Phone
Email
Jan 16, 2026
A. S.
Head Of Security Engineering
Mobile Phone
Email
Jul 01, 2024
A. M.
Head Of Transformation & Delivery
Mobile Phone
Email
United Arab Emirates
Feb 02, 2026
A. C.
Head Of Strategy
Mobile Phone
Email
United KingdomEngland
Jan 29, 2026
P. D.
Svp Client Success
Mobile Phone
Email
United Kingdom
Nov 24, 2025
M. G.
Svp Of Operations
Mobile Phone
Email
United KingdomEngland
Mar 21, 2024
I. R.
Head Of Devops, Aws Workloads
Mobile Phone
Email
Feb 02, 2026
C. H.
Vp Of Integration Strategy
Mobile Phone
Email
United KingdomUnited Kingdom
Jan 16, 2026

Frequently Asked Questions

What is Callsign known for?

Callsign was founded in 2011 operates in the Computer and Network Security industry. The company's main headquarters is located in London, England United Kingdom; you can contact the main corporate office by phone at

+1-571-966-****

. Explore Callsign's company overview page for more information.

What is Callsign's most common email format?

Callsign employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Callsign email formats with LeadIQ.

How many employees does Callsign have currently?

Callsign has approximately 265 employees as of February 2026. These team members are located across 4 continents, including EuropeAsiaNorth America.

Who are Callsign's key employees and leadership?

As of February 2026, Callsign's key employees include:

Chief Revenue Officer: L. C.
Chief Information Officer: A. P.
Chief Revenue Officer: S. O.
Chief Security Officer: I. C. C.
Chief Financial Officer: G. W.

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