About Us

We are the UK’s leading independent, UKAS accredited specialist certification body approving companies in the security and fire safety sectors to British and International Standards.

Our mission is to ensure the highest standards, independently auditing companies to ensure they deliver the best service for their clients. NSI approved companies help protect people where they live, work and spend their leisure time.

We are a not-for-profit organisation and a trusted partner providing independent audit and assessment services. We assess to our own schemes and on behalf of nationally recognised organisations, including government agencies and trade associations.

The NSI hallmark is the most widely recognised mark of approval in the security industry.

Go to the NSI website for more information.