NSI New Approvals – March 2021

Congratulations to the following organisations who have successfully achieved NSI approval  in March 2021 for one or more approval schemes.

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.



Aonyx Ltd based in Watford, WD24 4YH

Core Security Systems Ltd based in Rainham, RM13 9EF

NMCN Plc based in Warwick, CV34, 6RA

Systems Silver

Harmony Electrical Systems based in Lisburn, BT27 5AW

Fire Gold

Core Security Systems Ltd based in Rainham, RM13 9EF

Fire Silver

Alexander & Bell (Fire & Security) based in Glasgow, G42 9EH

Lake Electrical Ltd based in St Leonards On Sea, TN38 9TS

Evacuation Alert Systems Gold

Chevron Alarms based in Egham, TW20 8RG

Indigo Systems Ltd based in South Croydon, CR2 7BA

Leader Systems LLP based in Rugby, CV21 1ST

Optyma Security Systems Ltd based in Bexleyheath, DA6 8AQ

Search over 1900 companies independently approved by NSI here