Glen Clark joins DIAMA Security as Head of Operations
Glen Clark joins DIAMA Security as Head of Operations, bringing British Army, close protection and crowd management experience.

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DIAMA Security is pleased to welcome Glen Clark (Clarky), M.ISRM, M.IPSA, as our new Head of Operations.
A former member of the British Army, Close Protection Officer and experienced Crowd Manager, Clarky brings an operational background spanning Excel London and Arsenal Football Club. His appointment marks a new chapter for DIAMA’s operational team.
Experience in demanding environments
Security operations call for sound judgement, preparation and leadership that colleagues can rely on. Clarky joins DIAMA with experience across military service, close protection and crowd management, bringing a practical understanding of the standards those environments demand.
His background at Excel London and Arsenal Football Club adds experience of busy venues where the safety of people and the coordination of teams matter every day.
Leadership and the right attitude
Clarky’s experience is an important part of what he brings to DIAMA, alongside his approach to leadership and the people around him. We are building a team that takes responsibility, supports its colleagues and leads by example.
Those qualities fit the business we are building. We are delighted to welcome someone who brings both the operational experience and the attitude to contribute to it.
A new chapter for the operational team
As Head of Operations, Clarky joins a business guided by four commitments: we train, we prepare, we protect and we give back. These commitments shape the standards we expect across our work and the way we support our people.
Thank you for putting your trust in DIAMA, Clarky. We look forward to working together and welcome you to the team.
We train. We prepare. We protect. We give back.
