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Giant Security Ltd is an ACS approved contractor for Security Guarding services.

Giant Security Ltd is a British Institute of Cleaning Science (BICSc) Member

Who Are We?

Giant Security Supply Security Officers across the UK.

We hold the Security Industry Authority (SIA) Approved Contract Scheme for Security Guarding services. As well as ISO 9001 and other supporting accreditations and industry standards such as CHAS and SafeContractor and ICO for GDPR.

Net Zero

Giant is now committed to achieving net 0% carbon emissions. We are planting 19 trees a month in the UK and abroad. Also funding projects to support the environment. Watch our forest grow every month. If you wish to contribute and plant some trees, please let us know, we would happy to support you.

    Our Services

    Man Guarding


    Traffic Marshal

    Fire Marshal

    Why Choose Us?


    licensed staff


    Dual license Staff


    Client delivery

    We supply fully licensed and vetted security staff for a wide range of services

    Contact Us

    Working at Giant Security Ltd

    • Do you hold a active SIA License?
    • Do you want to find work that suits your personal situation?
    • Are you committed to working and keen to showcase what you can do?
    Fill Out The Form

    Join the Giant team


    Giant will invest in you


    Grow with Giant



    DirectorBoutique Retail Store – London

    We have been very satisfied with the work of Giant Security and we would like to single out AC for special appreciation for his effective work and calm professionalism. He has been a very reassuring presence in the store over the past few months and we are very grateful for his positive contribution. We have also been grateful for the work and advice you have provided at our other branches, it has proven to be invaluable.

    Strategic Account DirectorTop 3 Facilities Management Company

    Thank you (and your team) for all your hard work and support on the contract during the last few weeks. I speak regularly to various areas managers and they have been very complimentary about how instrumental your company has been in helping us to provide the level of cover required across the contract. To achieve coverage figures around the high 90s percentage mark in London on a consistent basis has been nothing short of amazing in these very challenging times and your company has played a very large part in helping us achieve that and it is only right we recognise your efforts.

    DirectorTop 3 Facilities Management Company

    Thanks for this great support during these tough times and it’s clear to see which of our suppliers have “stepped up” in our time of need. Well done again and speak soon.

    Zone Operations ManagerSupermarket Chain

    I would like to express our thanks to you and your company for the amazing support you have provided in what have been very challenging times. With your support we maintained a safe working and shopping environment for both customers and colleagues, from panic buying to social distancing they were a reassuring presence. We were able to establish strong working relationships and robust structures that has enabled all the good work we have achieved, it has been a pleasure working with you

    Find Us

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    Find us at:

    Kemp House,
    152 City Rd,
    London EC1V 2NX,
    United Kingdom

    T: +44 20 8017 9880