Electronic Systems Division (ESD) is responsible for acquiring and supporting electronic systems in the areas of electronic warfare, communications and command support, satellites and tactical interoperability and surveillance and control systems.

Command and Support Systems Branch is responsible for acquiring and sustaining information technology systems in support of Command and Control, Intelligence and Military Geospatial capabilities. The Branch also provides all deployed information technology in support of Australian Defence Force (ADF) deployments.

Communication Systems Branch is responsible for acquiring and sustaining communications systems in support of Australia’s strategic radio communications networks and tactical communications in the maritime and land battlespace environments. The Branch also acquires cryptographic equipment for the whole of government and co-ordinates DMO’s use of the radio frequency spectrum.

Electronic Warfare Branch is responsible for the acquisition and sustainment of electronic warfare and signals intelligence systems in both tactical and strategic domains. It is the role of the Branch to use the latest technological and market information to engineer electronic warfare solutions for the ADF.

Satellites and Tactical Interoperability Branch is responsible for the acquisition and sustainment of satellite capabilities, both space and terrestrial elements, for the ADF and other Government organisations. Additionally, the Branch is responsible for acquisition and sustainment of capabilities within the Tactical Information Exchange Domain which is instrumental in supporting the ADF's transition to a Network Enabled Force. The branch is also DMO’s emerging systems expert in the delivery of simulation capabilities for the ADF.

Surveillance and Control Branch is responsible for the acquisition, introduction into service and whole of life logistics support for Defence systems providing capabilities related to wide area surveillance, ground based elements of Air Defence Systems (eg radars, command and control systems and related organic communications), air traffic control services and related air-ground-air communications and ground positioning systems.