Join the community building a safer world
Find out why 90% of the most respected brands across Fire and Security choose NSI

UKAS-accredited Independent Certification

Interested in
NSI certification?

Get in touch to start your journey with us.

Make an enquiry Book a call
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Join the community building a safer world
Find out why 90% of the most respected brands across Fire and Security choose NSI

UKAS-accredited Independent Certification

Interested in
NSI certification?

Get in touch to start your journey with us.

Make an enquiry Book a call

ISO Certification

All our Gold schemes feature ISO 9001 certification and can also extend to incorporate ISO 14001 and ISO 45001

ISO 9001

Quality management

ISO 9001 is an internationally recognised standard that can help your business improve the quality of its products and services.

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ISO 14001

Environmental management

ISO 14001 helps you to improve environmental performance, reduce waste, manage risks and demonstrate environmental responsibility.

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ISO 45001

Health and safety management

ISO 45001 is a global standard designed to help organisations manage and prioritise workplace safety and health.

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Hallmark of Excellence for Providers of Security Systems, Fire and Guarding Services

The National Security Inspectorate is the UK's most highly trusted and respected, independent, UKAS-accredited certification body in the security and fire safety sectors

Looking for NSI approval?

Fire Safety Buyers Report 2026

Understand how buyers choose trusted fire safety service providers

Download now

Certification Support Training

NSI's training courses are designed to help
organisations understand certification requirements,
how recognised standards are applied within NSI
certification schemes and the organisational
evidence used to demonstrate conformity.

Latest News

PSI Magazine – Meet the NSI Installer August 2026

By Charlotte Rhodes | 18th August 2026

Read the latest ‘Meet the NSI Installer’ interview in the August 2026 issue of PSI…

NSI Re-certifications – July 2026

By Charlotte Rhodes | 17th August 2026

Congratulations to the following organisations who successfully achieved their NSI re-certification in July 2026 for…

Guest Post: Why Third-Party Certification Matters In Fire

By Jo Shaer | 11th August 2026

Jo Shaer shares her perspective on certification having become the Responsible Person for her building.…

NSI New Certifications – July 2026

By Charlotte Rhodes | 10th August 2026

Congratulations to the following organisations who have successfully achieved NSI certification in July 2026 for…

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Keep up to date with our events

Stay connected with the latest in the security and fire safety sectors through NSI’s events. From industry conferences and expos to regional meetings and award celebrations, our events offer valuable insights, networking, and opportunities to engage with peers and experts

Join the most respected brands in the industry

Begin your journey towards NSI certification.

Once your enquiry is received, we’ll provide a tailored quotation and information on Approval Criteria, NSI Regulations and supporting documents.

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