About Us.

About Us.

The Matrix Group

Who We Are:

Declan Greene

Executive Chairman
Declan Greene
Managing Director of Custodian Security Systems

Martin Tuohy

Executive Secretary
Martin Tuohy

Joe Leen

Executive Treasurer
Joe Leen
Managing Director of Express Security Systems


The Matrix Group has developed into a Nationwide Body over the past 17 years. We now consist of over 80 Independent Security and Fire System Installers. Companies range in size from 2 to 1100 employees. Through Group Purchasing, Members can benefit from the best market rates making us competitive with International installation companies.

Since 2008 The Matrix Group has expanded due to the demand for our services. We currently hold a seat on the PSA Board and 2 seats on the NSAI Technical committee giving us a serious voice within the industry.

The Group fosters a vibrant social environment during our 3 Annual Security Expositions currently held at the Sheraton Hotel Athlone. These gatherings provide members with opportunities to connect and view the newest updates and technologies available on the market. After dinner speakers and entertainment has become a staple at the Expositions with members embracing the Business and Social aspects of the events.


The Matrix Group has developed into a Nationwide Body over the past 17 years. We now consist of over 80 Independent Security and Fire System Installers. Companies range in size from 2 to 1100 employees.

Through Group Purchasing, Members an benefit from the best market rates making us competitive with International installation companies

Since 2008 the Matrix Group has expanded due to the demand for our services. We currently hold a seat on the PSA Board and 2 seats on the NSAI Technical committee giving us a serious voice within the industry.

The Group fosters a vibrant social environment during our 3 Annual Security Expositions currently held at the Sheraton Hotel Athlone. These gatherings provide members with opportunities to connect and view the newest updates and technologies available on the market.

After dinner speakers and entertainment has become a staple at the Expositions with members embracing the Business and Social aspects of the events.

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