NSI - National Security Inspectorate Email Format

Security and InvestigationsEngland, United Kingdom51-200 Employees

NSI - National Security Inspectorate operates as the United Kingdom’s principal specialist certification body for security and fire safety and is accredited by UKAS. It is a not-for-profit organization that independently verifies over 2,000 providers against British, European and International standards and NSI Codes of Practice, providing assurance to homeowners, businesses, and the public sector. The NSI approval is used as a benchmark of compliance by policing, fire and rescue services and the insurance industry. Based in Maidenhead, England, NSI covers a broad spectrum of services within the security and investigations field, including electronic security systems, fire detection and alarm systems, and security guarding and keyholding. It also serves as a Security Industry Authority Assessing Body for the Approved Contractor Scheme and as a Regional Independent Audit Body for the Transported Asset Protection Association (TAPA EMEA). In 2025, NSI appointed Jon Webster as Head of Marketing.

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