Who we are
About Penthorne
Clear, practical cyber security for businesses and organisations that need to get certified and stay secure.
Who we are
Penthorne is a specialist cyber security practice focused on Cyber Essentials certification and the practical work that surrounds it. We work with organisations of all sizes across London and the South East of England.
Our approach is direct: assess where you are, explain what needs to change, help you change it, get you certified.
Our approach
Certification is not the goal in itself — security is. We scope every engagement around what will actually reduce risk and satisfy the scheme, not around maximising billable time.
Every engagement starts with an honest gap assessment. We tell you what you have, what you need, and how much effort it takes. You decide how to proceed.
Who we work with
SMEs, enterprises, public sector bodies, and education settings. Wherever you sit, the fundamentals of Cyber Essentials are the same — what changes is how we scope and approach the work to fit your environment.
Meet the team →Where we operate
We are based in London and work with organisations across the South East — London, Kent, East and West Sussex, Surrey, and Essex. In-person visits are available and often the most effective approach, particularly for more complex environments.