NSI - Certification for security and fire protection companies

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NSI Gold: NSI approved companies compliant with NSI’s Gold Approval Criteria, NSI’s Regulations, NSI’s Quality Schedule, the ISO 9001 Quality Management System standard and defined technical standards.

NSI Silver: NSI approved companies compliant with NSI’s Silver Approval Criteria, NSI’s Regulations and defined technical standards.

CerticCS: NSI approved companies in the Republic of Ireland compliant with specific PSA standards and/or the ISO 9001 Quality Management System standard.

SIA ACS: Security Industry Authority Approved Contractors assessed by NSI.

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Companies listed operate across the UK regardless of location. You will obtain a list of all NSI approved companies providing these services (locational search is not applicable).

Companies listed hold an NSI CerticCS approval in either the UK or the Republic of Ireland. Note: You will obtain a list of all CerticCS approved companies (locational search is not applicable)

NSI Gold and Silver Medals - Signifying a companies approval with NSI

Look out for the NSI hallmark

It’s the most widely recognised mark of approval in security and
fire safety. NSI approval tells you the company is:

Technically Competent

Working to International and British Standards and NSI Codes of Practice, teams have relevant technical experience

Professional

Gold approval - operating a Quality Management System to ISO 9001 and NSI Quality Schedules

Trusted

Reputable Directors & leaders with relevant business experience and effective employee security screening

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Young family returning to a safe and secure home

Home security and fire safety you can trust

As a householder you want to be sure your security and fire safety providers are trustworthy with the knowledge to translate your needs into a solution that is right for you.

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Protecting the workplace

Security and fire safety in your workplace are of the utmost importance. NSI approved companies ensure peace of mind whether installing a fire or intruder alarm, CCTV system, servicing your fire extinguisher or providing door supervision.

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NSI approved companies

Approved companies keep up to date with the latest developments in standards and codes of practice for the benefit of their customers.

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Looking for NSI approval?

Independent, regular assessment by NSI's expert team of auditors demonstrates your company is compliant with British and International Standards and relevant Codes of Practice, providing reassurance for your clients.

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Over 2000 approved companies subject to annual NSI audit.

Over 2.75 million Certificates of Compliance for security and fire safety installations issued by NSI approved companies.

National Network of expert security and fire safety auditors.

Latest news

30th Nov 2021

Learn how ECHO is enabling a swifter, potentially life-saving police response to incidents through its digital alarm transmission service - register here to join Thursday's free webinar at 11am: https://t.co/hJQOXtVaTK https://t.co/4B1LFasWsO

29th Nov 2021

RT @ifsecglobal: We'll kick off the week with a positive start - celebrating the winners of this year's fire @EoTIFSEC competition and secu…

29th Nov 2021

Winners Revealed for WorldSkills and Engineers of Tomorrow Competitions 2021

Find out who this year's winners are

25th Nov 2021

WorldSkills UK National Finals Medal Ceremony Live Broadcast on 26 November: Security Apprentice Winners to be Ann...

Watch the ceremony to find out who the Gold, Silver and Bronze winners are

25th Nov 2021

Security & Fire Excellence Awards 2021: NSI Approved Companies Recognised for Outstanding Achievements

Find out more here

23rd Nov 2021