Ensuring Cyber Space is a safe place for you to do business

For Defence. For Government. For Enterprise. For SME.

Arcanum is an NCSC Assured Cyber Security Consultancy

ncsc accredited

Our Core Services

We provide an impressive breadth and depth of capabilities including:

Government or Business, Big or Small, Cyber Security is an issue.

Arcanum Cyber Security can help you.

Icon of a ship representing cyber security for the maritime sector


We understand Defence. Our DNA is across Front Line Commands to the MoD and we have developed particular expertise in supporting Defence Primes and their Supply Chains.


We have extensive Public Sector experience across Central Government, Local Authorities and Government Agencies. We hold top level security clearances and have CCP status awarded by GCHQ and the NCSC.


Protecting your vital business data is imperative to ensure continued business success. We specialise in tailoring solutions that are as unique as your organisation.


We understand SMEs. After all we are one! We have worked with many small businesses like yours to help defend vital systems, protect core assets and secure staff and customers.
Cyber Security for Critical National Infrastructure

Critical National Infrastructure

We help secure UK’s Critical National Infrastructure. As an NCSC Certified Consultancy we are trusted by Regulators, Operators and their Supply Chains to understand and mitigate Cyber Security Risks.

Arcanum is a supplier to UK Government and is certified by NCSC

Gold bannerArcanum is proud to have been awarded the Gold Defence Employer Recognition Scheme (ERS) Award.  We proactively demonstrate our forces-friendly credentials as part of our recruiting process and provide additional leave for Reservist employees.

Latest News

Operational Technology Cyber Security

Find out how we can help you mitigate your OT cyber risks.

manufacturing industry cyber security

We’re trusted by customers across all industries.

You can trust us too.

“Arcanum consultants assisted Cathelco with our Cyber Essentials Plus Certification. They provided invaluable advice and guidance on both the practical steps required and in assisting us to fine tune our policies and procedures, allowing us to achieve and maintain Certification.

Arcanum also provided specific guidance and consultancy around our requirement for an IT environment that meets MoD DEFCON 658-Cyber Security Model requirements. We found them to be excellent at what they do and would not hesitate to recommend their services to others.”

Phil Hicks, IT Manager, Cathelco Ltd.

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