NSI Re-certifications – August 2026

Looking for NSI approval?

Congratulations to the following organisations who successfully achieved their NSI re-certification in August 2026 for one or more approval schemes.

Re-certification audits occur at 3 yearly intervals and take place prior to the expiry of a company’s Certificate of Approval. The re-certification audit verifies a company’s ongoing demonstration of competency and professionalism and their commitment to NSI’s programme of annual audits for another three years.

Buyers who contract NSI approved companies for their security and fire safety needs can be assured of security and fire safety services delivered to the highest standards by businesses committed to quality and continual improvement.

NACOSS Gold

Amax Fire and Security Ltd (Harrow)

Astra Security Ltd (Bristol)

Brodman Ltd (Syston)

Click 24 Ltd (Rochdale)

Click Fire & Security Ltd (Rochdale)

Duchy Alarms Ltd (Truro)

Gratte Brothers Security Management Ltd (London)

Omega Security Systems (Bradford)

Select Alarm Systems Ltd (Bilston)

The Freedom Group of Companies Ltd (an NG Bailey Group Company) (Leeds)

Systems Silver

Alarmsmiths Ltd (St Neots)

SLC Alarms (Gravesend)

Ventol Ltd (Tamworth)

Ventol Maintenance Ltd (Tamworth)

ARC Gold

Doncaster Security Operations Centre Ltd (Auckley)

MITIE Security Ltd (Craigavon)

Palmaris Services Ltd (Coatbridge)

EMS Gold

Fisk Group (Chelmsford)

Guarding Gold

Banham Security (London)

Health & Safety Gold

Fisk Group (Chelmsford)

Fire Gold

Amax Fire and Security Ltd (Harrow)

Brodman Ltd (Syston)

ClearView Communications Limited (Chelmsford)

Click 24 Ltd (Rochdale)

Fire Silver

Quinns Contracting Ltd (Salisbury)

Life Safety Fire Risk Assessment Silver

Linear Training Solutions (Havant)

Search over 2000 companies independently approved by NSI