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Steve O'Donnell

Steve O'Donnell

Independent NED, Fractional Digital & AI Leader, Board Advisor

stephenodonnell
London, United Kingdom
Joined January 2026

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Fintech Financial Services
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Cambridge Society

Summary

Steve O'Donnell is an experienced technology executive with over three decades of global high-tech experience, holding numerous CIO, CTO, and leadership roles across diverse sectors including financial services, insurance, telecommunications, and security. He has a proven track record in digital transformation, M&A, and building and restructuring businesses, evidenced by his roles at companies like Coventry Building Society, G4S plc, Arthur J Gallagher, and GreenBytes. whateveryciowants+2
Beyond executive roles, Steve O'Donnell has a significant portfolio of non-executive directorships and advisory positions, demonstrating his strategic governance and guidance expertise. His current and recent board roles include Independent NED at The Cambridge Building Society and GUARDDOG AI, Non Executive Chair at FirstWave Cyber and Records Witness, Board Member at Scottish Business Network and Minerva CQ, and Non Executive Board Advisor at CFA UK. grcworldforums+2
He is an accomplished entrepreneur, having led disruptive businesses to successful trade sales and IPOs. Notably, he was Chairman and CEO of GreenBytes, which was acquired by Oracle, and has been involved in six trade sales, two MBOs, and one IPO. whateveryciowants+2
O'Donnell is recognized as an expert commentator and thought leader in data centers, storage, IT security, and cloud & managed services. He is a founding judge at Tech Trailblazers, a global awards program for enterprise technology startups, and is credited with initiating the Green Grid’s Data Center Maturity Model. whateveryciowants+2

Work

Hobbies

Steve O'Donnell started his career as an engineer, involved in the design of the very first 3 1/2 inch Winchester disk. techtrailblazers

He is an active angel investor and business leader in Blockchain, Solid State Storage, IT Security, Smart Grid, Sustainability, Data Centre cooling technology and the IT Services sector. about

Notes

NPNick Peastersaid
SOSteve O'Donnell
is one of the most impactful leaders they've seen working across both private and public sectors globally.

Feb 13, 2026

TPThomas Powersaid they've seen
SOSteve O'Donnell
guide senior leaders or the board through complex risk-related decisions.

Feb 5, 2026

TPThomas Powersaid they've seen
SOSteve O'Donnell
make a real positive impact by deploying AI or machine learning in risk management at their financial institution.

Jan 21, 2026

TPThomas Powersaid
SOSteve O'Donnell
is one of the most effective people they've worked with for modernizing legacy applications.

Dec 2, 2025