meet the team
Charlie Naughton-Rumbo
CEO
“Every day I’m proud of the LeftBrain team, the standard we hold ourselves to, and the businesses we help keep secure.”
Chartered Cyber security professional
Charlie is CEO of LeftBrain and a Chartered Cyber Security Professional, with over 10 years at the company — starting out building its security services portfolio, and now running the business day to day. Before moving into cyber security, Charlie spent years writing and directing theatre productions, and that creative background still shapes how the team solves problems: building the path to a client’s security goals in a way that’s proportionate, pragmatic, and never at odds with the business.
- Chartered Cyber Security Professional: Governance and Risk Management (ChCSP)
- Certified Information Systems Security Professional (CISSP)
- Information Security Systems Architecture Professional (ISSAP)
- Certified Cloud Security Professional (CCSP)
- Certified Information Security Manager (CISM)
- Jamf Certified Expert
Get to know Charlie…
Latest from Charlie
The 100-person problem: why ISO 27001 becomes a growth bottleneck
As organisations grow beyond 100 employees, procurement scrutiny increases. LeftBrain CEO Charlie Naughton-Rumbo explains why ISO 27001 implementation is often the answer and why it must be treated as organisational change, not just an IT project.
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Why UK scaleups are rethinking compliance budgets this year
UK tech scaleups are rethinking how they approach compliance. Learn why supply chain pressure is increasing and how governance-first security helps teams scale with clarity and confidence.
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Scaling? Start with strong security foundations
Scaling fast can open doors and expose gaps. LeftBrain CEO Charlie Naughton-Rumbo explains how strong security foundations help scaleups grow smoothly, win deals, and avoid costly firefighting later.
Read story
Meet Charlie’s leadership team
Meet the team behind LeftBrain.
