GALLOS Alliance membership is designed exclusively for individuals holding the most senior security or risk leadership role within their organisation. We meticulously vet applicants to ensure that our community comprises true peers who can provide valuable support, insights, debate, and challenge to fellow members. GALLOS Alliance is run by the Membership for the Membership. As such, we look to attract individuals who are motivated to contribute and take part in members’ discussions and play an active role in building and shaping a dynamic, engaging community of peers.
Our criteria for membership encompass the following:
GALLOS Alliance is an exclusive membership community of the UK’s highest-profile security and risk leaders, offering participants exceptional insights, value-added conversations, and peer networking opportunities in a trusted, sales-free environment.
The community’s members act as company co-building partners for GALLOS’s innovation work across security, defence, and resilience technologies, including concept validation, due diligence support, and early design partnership.
Membership connects you to the collective intelligence and leadership shaping the future of security and resilience.
Sir John Scarlett KCMG OBE
Former Director General, MI6 and Former Chair of the UK Joint Intelligence Committee.
Sir Nick Clegg
Former UK Deputy Prime Minister and former President, Global Affairs.
Sharon Barber
Chair, National Security Advisory Board.
Sir Jeremy Fleming
Former Director, GCHQ.
Prof.Sir Anthony Finkelstein CBE FREng FRS
Former UK Chief Scientific Adviser for National Security.
Glenn Gaffney
Former Director of Science and Technology, and Deputy Director of National Intelligence for Collection, at the CIA.
Ollie Whitehouse
Chief Technology Officer at the NCSC.
Sam Kirby-French
Group Chief Information Security Officer at BAE Systems.
Sir Alex Younger
Former Director General, MI6.
Matt Rowe
Chief Security Officer at Lloyds Banking Group.
We convene a bi-monthly series of high-calibre, in-person forums held under Chatham House Rules, creating a confidential environment for open and candid dialogue, with world-class speakers.
Themes include:
GALLOS Exchange is a series of small-format and invitation-only executive sessions held in private dining settings to enable candid, high-trust dialogue. Hosted by Gaven Smith, Senior GALLOS Advisor and former CTO at GCHQ.
The GALLOS Alliance membership experience is designed exclusively for individuals holding the most senior security or risk leadership role within their organisation. We meticulously vet applicants to ensure that our community comprises true peers who can provide valuable support, insights, debate, and challenge to fellow members. The GALLOS Alliance is run by the Membership for the Membership. As such, we look to attract individuals who are motivated to contribute and take part in members’ discussions and play an active role in building and shaping a dynamic, engaging community of peers.
Our criteria for membership encompass the following:
GALLOS Vault is the members-only platform offering access to the latest articles, podcasts, events, and research from across the community.
GALLOS Pulse provides members with a snapshot of key cybersecurity and technology trends, drawing on collective insights to enable confident decision-making.
Since joining the GALLOS Alliance, my experience has been consistently positive. It’s valuable to have a cross-sector forum where CISOs can openly discuss current and emerging challenges. I look forward to the programme of events in 2026
The GALLOS Alliance is a valuable forum for discussing real-world issues with peers who understand the pressures and complexities of the role, while gaining different perspectives that can help shape your own thinking.
GALLOS Alliance is for and of its members. It brings together a unique community of practice at the heart of the security and technology ecosystem.
I find GALLOS Alliance events to be useful and informative, and a great chance to meet fellow interested practitioners from my field and across all different sectors.
I would strongly recommend joining the GALLOS alliance to anybody who has that openness to different perspectives and a passion and concern for the interests of security.
The GALLOS Alliance gives me a great opportunity to network with people at the cutting edge of cybersecurity.
I've been in the GALLOS Alliance for a few months and I'd absolutely recommend it as a network. there's been some absolutely fabulous speakers and very high-quality content, it gives you that additional perspective that you can introduce into your work.
The events are awesome, it's great to be able to connect with people in the community, both the CISOs, that I know, the ones that I've met through the GALLOS Alliance.
The speakers that they have on are often well-known names. they are much more candid than I think they would be on a YouTube video so you really get the flavour and the nitty-gritty being here, so it's been really interesting.
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GALLOS is genuinely one of the strongest CISO and networking groups I engage with. The members are open and willing to share, the sessions are varied and relevant, and there is no hard sales angle. The GALLOS team bring real enthusiasm and purpose to everything they do. I am glad I was invited in and hope to stay a long-term member.
GALLOS events go beyond the operational day-to-day and offer the opportunity to reflect on the future of cyber security. I always feel refreshed and inspired after discussions with speakers who share genuine knowledge and perspectives I wouldn’t normally encounter.
Opportunities to attend events and network are plenty, but the GALLOS events are pitched at the right level of seniority, discussion, topics, and support. They’re not too frequent, held in good venues, and attract high-calibre participants—making them a valuable use of time.
GALLOS brings together a like-minded peer group from different work verticals but with common challenges. Cross-functional sharing of experience and ideas has helped shape my current thinking. GALLOS excels at coaxing differing perspectives and encouraging knowledge-sharing in a safe environment.
The quality of GALLOS Alliance speakers is second to none, providing unique and fascinating insights into the pressing security, technology, and resilience topics of the day.
I joined the Gallos Alliance in late 2024 and started attending events early in 2025. In that time, I've met many senior peers and colleagues, providing an excellent networking opportunity. Meeting like-minded colleagues in a relaxed and appropriate setting is always valuable. The quality of speakers has been excellent and looks set to continue into 2026
GALLOS Alliance has completely transformed my personal development and career trajectory. The access provided through the network is second to none, offering exciting opportunities for collaboration and industry insight.
