The National Security Inspectorate (NSI)

The National Security Inspectorate, (NSI) is an independent, not-for-profit approvals body with a public service ethos that provides inspection services for the security and fire industries.

For 35 years NSI has been protecting consumers by insisting on the highest standards from security and fire service providers and operating the toughest inspection regime.

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Website: www.nsi.org.uk