Security Systems, Manned Security Services and Fire Alarm & Detection Systems


Why choose an NSI Approved Company?

The National Security Inspectorate is the leading approvals and certification body that inspects companies providing home security, business security and fire safety services. Choosing an NSI approved company ensures that the contractor you select works to the highest recognised industry standards as demanded by the Police, Fire and Rescue Services and insurance industry.

NSI approve companies that provide:

  • intruder alarms / burglar alarms, cctv, access control
  • fire detection and alarm systems
  • manned security / keyholding services

NSI is a Security Industry Authority (SIA) Assessing Body for the Approved Contractor Scheme (ACS).

Approved Company Login

Find Approved Company