About Us

MSS Security provides wide-ranging security services to all market segments via infrastructure in every state and territory and a workforce of more than 6,000 employees.  This scope provides our customers with flexible solutions for all their security needs.


We have a national infrastructure, with offices in all state and territory capital cities, as well as a significant presence across regional areas.

MSS Security operates in all market segments – Arts, Events & Recreation, Aviation, Commercial Property, Data & Communication, Education, Energy & Resources, Financial Services, Government, Health, Industrial & Manufacturing and Maritime & Logistics.

Our specialist division, MSS Strategic Medical and Rescue, delivers industrial medical and emergency response fire and rescue services to the mining, natural resources, manufacturing and heavy construction industries.


MSS Security’s history dates back to 1896, when Chubb, as we were previously known, opened its first Australian office. Over the past century not only has our ownership changed, but so has our name, from Wormald Security before becoming MSS Security in 2008.

Today MSS Security is owned by SIS Limited, one of Asia-Pacific’s largest security personnel companies, with more than 150,000 employees. This allows us to provide financial assurance to our clients.


Integrity, Teamwork, Attitude, Performance, Passion

MSS Security’s company values were carefully chosen and are the framework for our Corporate Responsibility philosophy, our commitment to outstanding customer service, and a guide for our daily actions.

Read our Corporate Responsibility Statement here.

Read our Whistleblower Policy and Procedure here. 

Read our Modern Slavery Policy.


In the spirit of reconciliation, MSS Security acknowledges the Traditional Custodians of Country throughout Australia and their connections to land, sea and community. We pay our respect to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.