Stephen Reidy in

Stephen Reidy

Energizer · DISC type I
Chief Information Officer at VodafoneThree
📍 United Kingdom

Stephen Reidy is the CIO of VodafoneThree, specializing in driving large-scale business and IT transformation in the telecommunications sector. He has a wealth of experience leading complex integrations like the Three/O2 merger. He holds a Bachelor of Engineering from the University of Limerick and is regarded as an excellent, experienced leader.

He believes technology isnt a "silver bullet, " but the result of "bright people working really hard for a long time, " highlighting his focus on human effort over magic solutions.

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Experience
14 Years
Current Role
Chief Information Officer
Job Level
Leadership
Location
United Kingdom
Personality Overview

How Stephen shows up

Imaginative
Full Of Energy
Believer

They are really good at seeing what the long-term impacts of their decisions could be. They are not always early adopters but can be pursuaded by leveraging strong relationships. Unlike C or D types, they are vocal with their opinions but not so much with their questions.

Priorities

Topics Stephen cares about

Business Transformation
He has a proven track record of leading large-scale IT and business transformation programs across both Three UK and Three Ireland to enhance customer experience.
Telco M&A Integration
He has deep experience managing the complex IT integrations following major mergers, including Orange/T-Mobile (EE), Three/O2 Ireland, and now the Vodafone/Three merger.
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Career

Work history

6-2025
Chief Information Officer
VodafoneThree
9-2023 - 6-2025
Chief Information Officer
Three UK & Ireland
6-2021 - 8-2023
CIO Ireland & Director of Transformation UK
Three Ireland & Three UK
7-2014 - 6-2021
CIO
Three Ireland
4-2011 - 7-2014
Head of Strategy & Consulting
O2 IRE (a Telefónica Company)
In the press

Media appearances

Three welcomes new CIO | VodafoneThree Press Release - Careers. Featured in Three (VodafoneThree) Careers Press Release
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Education
1982 - 1986
BEng
University of Limerick
Social presence
in
Behavioral profile

DISC profile (public)

I

Influence (I)

Influence (I) reflects the degree to which a person prefers to work by influencing or persuading others. Those scoring high tend to be people oriented, motivated by social recognition and building relationships.

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