Zia Hayat - Email & Phone Number

Chairman & CEO at Callsign

Zia Hayat is based out of United Kingdom and works at Callsign as Chairman & CEO.

Zia Hayat's Contact Information

Zia Hayat's Work email

z*****@callsi***.com

Valid

Latest update

October 30, 2025

Location

United Kingdom

Zia's current employer

Callsign

Description

Marking a new era in passive authentication, fraud prevention and intelligence. We make digital identity simple and more secure.

Website

callsign.com

HQ Location

London, England, United Kingdom

Number of employees

51-200

Industry

Computer And Network Security

Latest update

May 1, 2024

Read about Callsign

Frequent questions about Zia Hayat

What company is Zia Hayat working for?

Zia Hayat works for Callsign.

What is Zia Hayat's function at Callsign?

Zia Hayat is Chairman & CEO at Callsign.

Where is Zia Hayat based?

Zia Hayat is based out of United Kingdom.

What is Zia Hayat's work email address?

Zia Hayat's professional email address is z*****@callsi***.com

Who are Zia Hayat's co-workers?

Zia Hayat's colleagues are Adelle Jennings, Phil Gordon, Mazhar Malik, Ian Welch, Richard Wallwork, Varsha Tevarkalam, Priya Kanish, Valentina Valle, Abdul Pasha, Sarah Whipp, Zuul Yakub, Joe Micara, Matthew Gott, Ben Spencer, Patrick Imbach, Christopher Hutton, Sinead Matine, Maureen Regan, Edwin Maina, Dragan Krtalic, Darren Evans, Zuul Quarnain, Thor Ahmed, Michael Farry, Yogesh Patel, Aaron O'Connor, Paul Fletcher, Jonno Rose, Ahmed Sultan, Elliott CIPD, Frank Tan, Ali Munawar, Rachel Matthews, Hal Granoff, Gavin Bennett.

Zia's co-workers

Adelle Jennings

Executive Assistant to CEO & Founder

Phil Gordon

Product Owner

Mazhar Malik

Senior Cryptography Engineer | Engineering Product Owner

Ian Welch

Co-Founder & Chief Operating Officer

Richard Wallwork

SVP Operations at Callsign

Varsha Tevarkalam

Cloud Operations Engineer

Priya Kanish

People Projects Coordinator

Valentina Valle

Facilities Coordinator

Abdul Pasha

Cloud Operations Engineer

Sarah Whipp

CMO and Head of Go To Market Strategy

Zuul Yakub

VP of Global Customer Success

Joe Micara

Vice President of Sales, North America

Matthew Gott

VP Operations

Ben Spencer

VP of Technology Delivery

Patrick Imbach

CFO

Christopher Hutton

VP of Integration Strategy

Sinead Matine

CTO Office Governance Lead

Maureen Regan

CTO Office Lead

Edwin Maina

L2 Cloud Engineer NOC

Dragan Krtalic

Vice President Of Architecture

Darren Evans

Vice President - Delivery

Zuul Quarnain

VP of Global Sales Strategy & Analytics

Thor Ahmed

VP, Global Head of Sourcing and Contracting

Michael Farry

VP, People

Yogesh Patel

CTO & Head of AI Research

Aaron O'Connor

VP, InfoSec Risk, Compliance and Privacy

Paul Fletcher

VIce President of Research & Development

Jonno Rose

Vice President of Sales Operations

Ahmed Sultan

Head of security engineering

Elliott CIPD

People Operations Lead

Frank Tan

Commercial Director, APAC

Ali Munawar

Head of Transformation

Rachel Matthews

Director of Global Corporate Communications

Hal Granoff

Head of US Market Development

Gavin Bennett

Client Delivery Lead/Programme Manager

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