About Us
About Sentra
Founded in 2025, Sentra helps organisations put human behaviour at the heart of cyber security. We combine behavioural science, threat intelligence, and practical training to deliver insights that staff can act on daily.
No matter the industry or size of the organisation, our platform curates the most relevant threats and translates them into clear, actionable guidance that strengthens human centred cyber resilience.
Based in the UK, Sentra partners with organisations to build security aware cultures where people, not just technology, protect what matters most.
Lee Casey, PhD
Founder and CEO
Applied behavioural scientist helping organisations strengthen human centred cyber resilience. Experienced in building Security Awareness & Training, and Human Risk Management solutions for a diverse range of organisations.
Nathan Walker
CTO
Over a decade building secure, high-performance platforms for Fortune 500 companies. Nathan is responsible for the security, reliability, and scalability of Sentra.
William Allen
Fractional Change and Business Advisor
Experienced in regulatory, operational and technology transformation specialising in strategic challenge,
corporate insights and founder mentoring.
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