ISG is one of the leading security companies in London who are licensed by Security Industry Authority (SIA) and providing best services in private security, public security and corporate security sectors. We serve different industries related to financial services, medical, aviation, oil & gas, law enforcement industries and personal and facility protection.
ISG is one of the top security companies in London and we prefer to utilize unique and state of the art technologies, apply proven protocols and techniques, implement best assessments and measures developed specifically by Federal Law Enforcement, Intelligence Agencies, and the UK Military and Industry Security Experts.

Our Experience

Since the foundation of Intelligence security group (ISG) in London, it’s our aim to build the company with clear view and provide the best strategy that looks ahead and sets all new standards in the security industry.
Looking at the several years to come, I am highly confident that ISG is going to build the strong background and great flexibility to become a good leader in this field and will set new examples.
I look forward to continue to serving all my potential clients and welcome the new clients who are looking for a best security solution that meets highest of the standards.

John Allen

Security Chief




ISG is committed to provide excellent services in security industry by maintaining legality and ethics and providing professional security guard services.


We are living up to the highest nonnegotiable standards of trust, loyalty, honesty and integrity with no exceptions.


We never expect less from our professional team members who are knowledgeable and accountable about the jobs at hand.


Our clients depend on us, place their precious lives and valuable assets in our hands. So providing complete transparency by giving security services London is our major concern.