About NSI

Why choose an NSI Approved Company?

NSI's mission is to raise standards in the fire and security industries in the interests of the customer.

NSI believes that every customer, whether a large commercial organisation or an individual householder, is entitled to receive a professional service from security and fire companies.

The threat to every customer is the long-term undermining of standards by poor performers. It is NSI's motivation to separate the strong from the weak.

NSI approved companies must prove their competence on an on-going basis. They may not always be the cheapest, but they are invariably
the best.

If a company has not been approved by NSI, challenge its credentials.

All NSI approved companies:

  • meet the highest business performance standards
  • meet all relevant British and European Standards for technical performance
  • security screen all relevant staff (security companies)
  • provide a high level of staff training and supervision to industry best practice standards
  • are comprehensively insured to protect customers and staff
  • are inspected every six months by professional auditors including random site visits

NSI Gold companies also:

  • meet the industry specific ISO 9001:2000 Quality Management System Standard
  • demonstrate a long term track record of performance and evidence of reliability and stability
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